初学小白Lu

HTML5-4-表单

文章目录

表单属性
表单标签
输入元素
- 文本域（Text Fields）
- 密码字段
- 单选按钮（Radio Buttons）
- 复选框（Checkboxes）
- 按钮（button）
- 提交按钮(Submit)
- label标签
文本框（textarea）
下拉列表
带边框的表单（fieldset）
form

HTML 表单用于收集用户的输入信息，表示文档中的一个区域，此区域包含交互控件，将用户收集到的信息发送到 Web 服务器。

表单是一个包含表单元素的区域。
表单元素是允许用户在表单中输入内容，比如：文本域（textarea）、下拉列表（select）、单选框（radio-buttons）、复选框（checkbox） 等等。
我们可以使用

标签来创建表单:

<form>
.
input 元素
.
form>

表单属性

action=“url地址” ：数据要传送到的地方
method=“提交方式”：有get和post可以选择
name=“表单域名称”：定义一个名字

表单标签

标签	描述
	定义供用户输入的表单
	定义输入域
</td> <td>定义文本域 (一个多行的输入控件)</td> </tr> <tr> <td><label></td> <td>定义了 <input> 元素的标签，一般为输入标题</td> </tr> <tr> <td><fieldset></td> <td>定义了一组相关的表单元素，并使用外框包含起来</td> </tr> <tr> <td><legend></td> <td>定义了 <fieldset> 元素的标题</td> </tr> <tr> <td><select></td> <td>定义了下拉选项列表</td> </tr> <tr> <td><optgroup> </td> <td>定义选项组</td> </tr> <tr> <td><option> </td> <td>定义下拉列表中的选项</td> </tr> <tr> <td><button></td> <td>定义一个点击按钮</td> </tr> <tr> <td><datalist></td> <td>指定一个预先定义的输入控件选项列表</td> </tr> <tr> <td><keygen></td> <td>定义了表单的密钥对生成器字段</td> </tr> <tr> <td><output></td> <td>定义一个计算结果</td> </tr> </tbody> </table> <h1>输入元素</h1> <p>多数情况下被用到的表单标签是输入标签 <strong><input></strong>。</p> <h2>文本域（Text Fields）</h2> <p>文本域通过 <input type=“text”> 标签来设定，当用户要在表单中键入字母、数字等内容时，就会用到文本域。</p> <pre><code class="prism language-html"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span><span class="token punctuation">></span></span> 用户名: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>username<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>br</span><span class="token punctuation">></span></span> 密码: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>password<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> </code></pre> <p>可以用 <strong>placeholder=”默认提示“</strong> 输入时直接消失<br> <strong>注意：</strong> 在大多数浏览器中，文本域的默认宽度是 20 个字符。</p> <h2>密码字段</h2> <p>密码字段通过标签 <input type=“password”> 来定义:</p> <pre><code class="prism language-html"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span><span class="token punctuation">></span></span> 密码: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>password<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>pwd<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> </code></pre> <p>密码字段字符不会明文显示，而是以星号 * 或圆点 . 替代。</p> <h2>单选按钮（Radio Buttons）</h2> <p><input type=“radio”> 标签定义了表单的单选框选项:</p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>UTF-8<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>Title<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">action</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span><span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>radio<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>sex<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>male<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Male<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>br</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>radio<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>sex<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>female<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Female <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <p><a href="http://img.e-com-net.com/image/info8/b0ff10887c5a4f229adf708df784d7fa.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/b0ff10887c5a4f229adf708df784d7fa.jpg" alt="HTML5-4-表单_第1张图片" width="390" height="109" style="border:1px solid black;"></a></p> <h2>复选框（Checkboxes）</h2> <p><input type=“checkbox”> 定义了复选框。<br> 复选框可以选取一个或多个选项：</p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>UTF-8<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>Title<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">action</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span><span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>checkbox<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>vehicle<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>Bike<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>bike<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>br</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>checkbox<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>vehicle<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>Car<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>car <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <p><a href="http://img.e-com-net.com/image/info8/a2231c8ec5dc4f1ca245de2b10e6be16.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/a2231c8ec5dc4f1ca245de2b10e6be16.jpg" alt="HTML5-4-表单_第2张图片" width="400" height="110" style="border:1px solid black;"></a></p> <h2>按钮（button）</h2> <p><input type=“button”></p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>UTF-8<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>Title<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">action</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span><span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>button<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>test<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <p><a href="http://img.e-com-net.com/image/info8/78a744ce6f654488baef9d7149e38c3c.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/78a744ce6f654488baef9d7149e38c3c.jpg" alt="在这里插入图片描述" width="162" height="85"></a></p> <h2>提交按钮(Submit)</h2> <p><input type=“submit”> 定义了提交按钮。<br> 当用户单击确认按钮时，表单的内容会被传送到服务器。表单的动作属性 action 定义了服务端的文件名。<br> action 属性会对接收到的用户输入数据进行相关的处理:</p> <p>实例</p> <pre><code class="prism language-html"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>input<span class="token punctuation">"</span></span> <span class="token attr-name">action</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>html_form_action.php<span class="token punctuation">"</span></span> <span class="token attr-name">method</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>get<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> Username: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>user<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>submit<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>Submit<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> </code></pre> <p>在上面的文本框内键入几个字母，然后点击确认按钮，那么输入数据会传送到 html_form_action.php 文件，该页面将显示出输入的结果。</p> <p><strong>method 属性</strong>：用于定义表单数据的提交方式，可以是以下值：</p> <ul> <li>post：指的是 HTTP POST 方法，表单数据会包含在表单体内然后发送给服务器，用于提交敏感数据，如用户名与密码等。</li> <li>get：默认值，指的是 HTTP GET 方法，表单数据会附加在 action 属性的 URL 中，并以 ?作为分隔符，一般用于不敏感信息，如分页等。</li> </ul> <p>实例</p> <pre><code class="prism language-html"><span class="token comment"><!-- 以下表单使用 GET 请求发送数据到当前的 URL，method 默认位 GET。 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span><span class="token punctuation">></span></span>Name: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>submitted-name<span class="token punctuation">"</span></span> <span class="token attr-name">autocomplete</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>name<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>button</span><span class="token punctuation">></span></span>Save<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>button</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 以下表单使用 POST 请求发送数据到当前的 URL。 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">method</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>post<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span><span class="token punctuation">></span></span>Name: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>submitted-name<span class="token punctuation">"</span></span> <span class="token attr-name">autocomplete</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>name<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>button</span><span class="token punctuation">></span></span>Save<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>button</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 表单使用 fieldset, legend, 和 label 标签 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">method</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>post<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>fieldset</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>legend</span><span class="token punctuation">></span></span>Title<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>legend</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>radio<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>radio<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> Select me<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>fieldset</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> </code></pre> <h2>label标签</h2> <p>常用于绑定内容与表单标签的关系。当单击<label>标签内的文本时，浏览器就会自动将焦点(光标)转到或者选择对应的表单元素上，用来增加用户的体验。</p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>UTF-8<span class="token punctuation">"</span></span> <span class="token punctuation">/></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>viewport<span class="token punctuation">"</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>width=device-width, initial-scale=1.0<span class="token punctuation">"</span></span> <span class="token punctuation">/></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>表单应用<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span> <span class="token attr-name">for</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>name<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>用户名:<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>username<span class="token punctuation">"</span></span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>name<span class="token punctuation">"</span></span> <span class="token punctuation">/></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <p><a href="http://img.e-com-net.com/image/info8/060c91317d6848479ed7aca456bf3a70.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/060c91317d6848479ed7aca456bf3a70.jpg" alt="在这里插入图片描述" width="352" height="63"></a><br> 将“用户名”这三个字放到了标签内部，并且添加了for属性，该属性的取值为name.当然for属性的取值可以随意写，你可以写一个abc,但是必须与表单元素(这里是文本框)的id属性值保持一致才可以。</p> <h1>文本框（textarea）</h1> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>UTF-8<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>Title<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>textarea</span> <span class="token attr-name">rows</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>10<span class="token punctuation">"</span></span> <span class="token attr-name">cols</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>30<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> 我是一个文本框。 <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>textarea</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <p><a href="http://img.e-com-net.com/image/info8/11653312d3d84e29b3a7463b02401c47.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/11653312d3d84e29b3a7463b02401c47.jpg" alt="HTML5-4-表单_第3张图片" width="417" height="288" style="border:1px solid black;"></a></p> <h1>下拉列表</h1> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>UTF-8<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>Title<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">action</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span><span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>select</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>cars<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>option</span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>volvo<span class="token punctuation">"</span></span> <span class="token attr-name">selected</span><span class="token punctuation">></span></span>Volvo<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>option</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>option</span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>saab<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Saab<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>option</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>option</span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>fiat<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Fiat<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>option</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>option</span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>audi<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>Audi<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>option</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>select</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <p><a href="http://img.e-com-net.com/image/info8/2ab422c09d2d41ca91fca841a1239e24.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/2ab422c09d2d41ca91fca841a1239e24.jpg" alt="HTML5-4-表单_第4张图片" width="162" height="173" style="border:1px solid black;"></a></p> <h1>带边框的表单（fieldset）</h1> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>UTF-8<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>Title<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">action</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span><span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>fieldset</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>legend</span><span class="token punctuation">></span></span>Personal information:<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>legend</span><span class="token punctuation">></span></span> Name: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">size</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>30<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>br</span><span class="token punctuation">></span></span> E-mail: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">size</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>30<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>br</span><span class="token punctuation">></span></span> Date of birth: <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">size</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>10<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>fieldset</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <p><a href="http://img.e-com-net.com/image/info8/e66fb946e986463783acd6aa152d9eb7.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/e66fb946e986463783acd6aa152d9eb7.jpg" alt="HTML5-4-表单_第5张图片" width="650" height="170" style="border:1px solid black;"></a></p> <h1>form</h1> <p>form属性列表：</p> <table> <tbody> <tr> <th>属性</th> <th>描述</th> </tr> <tr> <td>accept-charset</td> <td>规定在被提交表单中使用的字符集（默认：页面字符集）。</td> </tr> <tr> <td>action</td> <td>规定向何处提交表单的地址（URL）（提交页面）。</td> </tr> <tr> <td>autocomplete</td> <td>规定浏览器应该自动完成表单（默认：开启）。</td> </tr> <tr> <td>enctype</td> <td>规定被提交数据的编码（默认：url-encoded）。</td> </tr> <tr> <td>method </td> <td>规定在提交表单时所用的 HTTP 方法（默认：GET）。</td> </tr> <tr> <td>name</td> <td>规定识别表单的名称（对于 DOM 使用：document.forms.name）。</td> </tr> <tr> <td>novalidate </td> <td>规定浏览器不验证表单。</td> </tr> <tr> <td>target </td> <td>规定 action 属性中地址的目标（默认：_self）。</td> </tr> </tbody> </table> </div> </div> </div> </div> </div> <!--PC和WAP自适应版--> <div id="SOHUCS" sid="1698999002730672128"></div> <script type="text/javascript" src="/views/front/js/chanyan.js"></script> <!-- 文章页-底部动态广告位 --> <div class="youdao-fixed-ad" id="detail_ad_bottom"></div> </div> <div class="col-md-3"> <div class="row" id="ad"> <!-- 文章页-右侧1 动态广告位 --> <div id="right-1" class="col-lg-12 col-md-12 col-sm-4 col-xs-4 ad"> <div class="youdao-fixed-ad" id="detail_ad_1"> </div> </div> <!-- 文章页-右侧2 动态广告位 --> <div id="right-2" class="col-lg-12 col-md-12 col-sm-4 col-xs-4 ad"> <div class="youdao-fixed-ad" id="detail_ad_2"></div> </div> <!-- 文章页-右侧3 动态广告位 --> <div id="right-3" class="col-lg-12 col-md-12 col-sm-4 col-xs-4 ad"> <div class="youdao-fixed-ad" id="detail_ad_3"></div> </div> </div> </div> </div> </div> </div> <div class="container"> <h4 class="pt20 mb15 mt0 border-top">你可能感兴趣的:(HTML,html5,前端,html)</h4> <div id="paradigm-article-related"> <div class="recommend-post mb30"> <ul class="widget-links"> <li><a href="/article/1835509897106649088.htm" title="Long类型前后端数据不一致" target="_blank">Long类型前后端数据不一致</a> <span class="text-muted">igotyback</span> <a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a> <div>响应给前端的数据浏览器控制台中response中看到的Long类型的数据是正常的到前端数据不一致前后端数据类型不匹配是一个常见问题，尤其是当后端使用Java的Long类型（64位）与前端JavaScript的Number类型（最大安全整数为2^53-1，即16位）进行数据交互时，很容易出现精度丢失的问题。这是因为JavaScript中的Number类型无法安全地表示超过16位的整数。为了解决这个问</div> </li> <li><a href="/article/1835509770287673344.htm" title="swagger访问路径" target="_blank">swagger访问路径</a> <span class="text-muted">igotyback</span> <a class="tag" taget="_blank" href="/search/swagger/1.htm">swagger</a> <div>Swagger2.x版本访问地址：http://{ip}:{port}/{context-path}/swagger-ui.html{ip}是你的服务器IP地址。{port}是你的应用服务端口，通常为8080。{context-path}是你的应用上下文路径，如果应用部署在根路径下，则为空。Swagger3.x版本对于Swagger3.x版本（也称为OpenAPI3）访问地址：http://{ip</div> </li> <li><a href="/article/1835508130608410624.htm" title="html 中如何使用 uniapp 的部分方法" target="_blank">html 中如何使用 uniapp 的部分方法</a> <span class="text-muted">某公司摸鱼前端</span> <a class="tag" taget="_blank" href="/search/html/1.htm">html</a><a class="tag" taget="_blank" href="/search/uni-app/1.htm">uni-app</a><a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a> <div>示例代码：Documentconsole.log(window);效果展示：好了，现在就可以uni.使用相关的方法了</div> </li> <li><a href="/article/1835499615491813376.htm" title="四章-32-点要素的聚合" target="_blank">四章-32-点要素的聚合</a> <span class="text-muted">彩云飘过</span> <div>本文基于腾讯课堂老胡的课《跟我学Openlayers--基础实例详解》做的学习笔记，使用的openlayers5.3.xapi。源码见1032.html，对应的官网示例https://openlayers.org/en/latest/examples/cluster.htmlhttps://openlayers.org/en/latest/examples/earthquake-clusters.</div> </li> <li><a href="/article/1835498925755297792.htm" title="DIV+CSS+JavaScript技术制作网页（旅游主题网页设计与制作）云南大理" target="_blank">DIV+CSS+JavaScript技术制作网页（旅游主题网页设计与制作）云南大理</a> <span class="text-muted">STU学生网页设计</span> <a class="tag" taget="_blank" href="/search/%E7%BD%91%E9%A1%B5%E8%AE%BE%E8%AE%A1/1.htm">网页设计</a><a class="tag" taget="_blank" href="/search/%E6%9C%9F%E6%9C%AB%E7%BD%91%E9%A1%B5%E4%BD%9C%E4%B8%9A/1.htm">期末网页作业</a><a class="tag" taget="_blank" href="/search/html%E9%9D%99%E6%80%81%E7%BD%91%E9%A1%B5/1.htm">html静态网页</a><a class="tag" taget="_blank" href="/search/html5%E6%9C%9F%E6%9C%AB%E5%A4%A7%E4%BD%9C%E4%B8%9A/1.htm">html5期末大作业</a><a class="tag" taget="_blank" href="/search/%E7%BD%91%E9%A1%B5%E8%AE%BE%E8%AE%A1/1.htm">网页设计</a><a class="tag" taget="_blank" href="/search/web%E5%A4%A7%E4%BD%9C%E4%B8%9A/1.htm">web大作业</a> <div>️精彩专栏推荐作者主页:【进入主页—获取更多源码】web前端期末大作业：【HTML5网页期末作业(1000套)】程序员有趣的告白方式：【HTML七夕情人节表白网页制作(110套)】文章目录二、网站介绍三、网站效果▶️1.视频演示2.图片演示四、网站代码HTML结构代码CSS样式代码五、更多源码二、网站介绍网站布局方面：计划采用目前主流的、能兼容各大主流浏览器、显示效果稳定的浮动网页布局结构。网站程</div> </li> <li><a href="/article/1835497792265613312.htm" title="【加密社】Solidity 中的事件机制及其应用" target="_blank">【加密社】Solidity 中的事件机制及其应用</a> <span class="text-muted">加密社</span> <a class="tag" taget="_blank" href="/search/%E9%97%B2%E4%BE%83/1.htm">闲侃</a><a class="tag" taget="_blank" href="/search/%E5%8C%BA%E5%9D%97%E9%93%BE/1.htm">区块链</a><a class="tag" taget="_blank" href="/search/%E6%99%BA%E8%83%BD%E5%90%88%E7%BA%A6/1.htm">智能合约</a><a class="tag" taget="_blank" href="/search/%E5%8C%BA%E5%9D%97%E9%93%BE/1.htm">区块链</a> <div>加密社引言在Solidity合约开发过程中，事件（Events）是一种非常重要的机制。它们不仅能够让开发者记录智能合约的重要状态变更，还能够让外部系统（如前端应用）监听这些状态的变化。本文将详细介绍Solidity中的事件机制以及如何利用不同的手段来触发、监听和获取这些事件。事件存储的地方当我们在Solidity合约中使用emit关键字触发事件时，该事件会被记录在区块链的交易收据中。具体而言，事件</div> </li> <li><a href="/article/1835496149843275776.htm" title="关于城市旅游的HTML网页设计——(旅游风景云南 5页)HTML+CSS+JavaScript" target="_blank">关于城市旅游的HTML网页设计——(旅游风景云南 5页)HTML+CSS+JavaScript</a> <span class="text-muted">二挡起步</span> <a class="tag" taget="_blank" href="/search/web%E5%89%8D%E7%AB%AF%E6%9C%9F%E6%9C%AB%E5%A4%A7%E4%BD%9C%E4%B8%9A/1.htm">web前端期末大作业</a><a class="tag" taget="_blank" href="/search/javascript/1.htm">javascript</a><a class="tag" taget="_blank" href="/search/html/1.htm">html</a><a class="tag" taget="_blank" href="/search/css/1.htm">css</a><a class="tag" taget="_blank" href="/search/%E6%97%85%E6%B8%B8/1.htm">旅游</a><a class="tag" taget="_blank" href="/search/%E9%A3%8E%E6%99%AF/1.htm">风景</a> <div>⛵源码获取文末联系✈Web前端开发技术描述网页设计题材，DIV+CSS布局制作,HTML+CSS网页设计期末课程大作业\|游景点介绍\|旅游风景区\|家乡介绍\|等网站的设计与制作\|HTML期末大学生网页设计作业，Web大学生网页HTML：结构CSS：样式在操作方面上运用了html5和css3，采用了div+css结构、表单、超链接、浮动、绝对定位、相对定位、字体样式、引用视频等基础知识JavaScrip</div> </li> <li><a href="/article/1835496148601761792.htm" title="HTML网页设计制作大作业（div+css）云南我的家乡旅游景点带文字滚动" target="_blank">HTML网页设计制作大作业（div+css）云南我的家乡旅游景点带文字滚动</a> <span class="text-muted">二挡起步</span> <a class="tag" taget="_blank" href="/search/web%E5%89%8D%E7%AB%AF%E6%9C%9F%E6%9C%AB%E5%A4%A7%E4%BD%9C%E4%B8%9A/1.htm">web前端期末大作业</a><a class="tag" taget="_blank" href="/search/web%E8%AE%BE%E8%AE%A1%E7%BD%91%E9%A1%B5%E8%A7%84%E5%88%92%E4%B8%8E%E8%AE%BE%E8%AE%A1/1.htm">web设计网页规划与设计</a><a class="tag" taget="_blank" href="/search/html/1.htm">html</a><a class="tag" taget="_blank" href="/search/css/1.htm">css</a><a class="tag" taget="_blank" href="/search/javascript/1.htm">javascript</a><a class="tag" taget="_blank" href="/search/dreamweaver/1.htm">dreamweaver</a><a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a> <div>Web前端开发技术描述网页设计题材，DIV+CSS布局制作,HTML+CSS网页设计期末课程大作业游景点介绍\|旅游风景区\|家乡介绍\|等网站的设计与制作HTML期末大学生网页设计作业HTML：结构CSS：样式在操作方面上运用了html5和css3，采用了div+css结构、表单、超链接、浮动、绝对定位、相对定位、字体样式、引用视频等基础知识JavaScript：做与用户的交互行为文章目录前端学习路线</div> </li> <li><a href="/article/1835448238103162880.htm" title="springboot+vue项目实战一-创建SpringBoot简单项目" target="_blank">springboot+vue项目实战一-创建SpringBoot简单项目</a> <span class="text-muted">苹果酱0567</span> <a class="tag" taget="_blank" href="/search/%E9%9D%A2%E8%AF%95%E9%A2%98%E6%B1%87%E6%80%BB%E4%B8%8E%E8%A7%A3%E6%9E%90/1.htm">面试题汇总与解析</a><a class="tag" taget="_blank" href="/search/spring/1.htm">spring</a><a class="tag" taget="_blank" href="/search/boot/1.htm">boot</a><a class="tag" taget="_blank" href="/search/%E5%90%8E%E7%AB%AF/1.htm">后端</a><a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/%E4%B8%AD%E9%97%B4%E4%BB%B6/1.htm">中间件</a><a class="tag" taget="_blank" href="/search/%E5%BC%80%E5%8F%91%E8%AF%AD%E8%A8%80/1.htm">开发语言</a> <div>这段时间抽空给女朋友搭建一个个人博客，想着记录一下建站的过程，就当做笔记吧。虽然复制zjblog只要一个小时就可以搞定一个网站，或者用cms系统，三四个小时就可以做出一个前后台都有的网站，而且想做成啥样也都行。但是就是要从新做，自己做的意义不一样，更何况，俺就是专门干这个的，嘿嘿嘿要做一个网站，而且从零开始，首先呢就是技术选型了，经过一番思量决定选择-SpringBoot做后端，前端使用Vue做一</div> </li> <li><a href="/article/1835437775344726016.htm" title="博客网站制作教程" target="_blank">博客网站制作教程</a> <span class="text-muted">2401_85194651</span> <a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/maven/1.htm">maven</a> <div>首先就是技术框架：后端：Java+SpringBoot数据库：MySQL前端：Vue.js数据库连接：JPA(JavaPersistenceAPI)1.项目结构blog-app/├──backend/│├──src/main/java/com/example/blogapp/││├──BlogApplication.java││├──config/│││└──DatabaseConfig.java</div> </li> <li><a href="/article/1835435506645692416.htm" title="00. 这里整理了最全的爬虫框架（Java + Python）" target="_blank">00. 这里整理了最全的爬虫框架（Java + Python）</a> <span class="text-muted">有一只柴犬</span> <a class="tag" taget="_blank" href="/search/%E7%88%AC%E8%99%AB%E7%B3%BB%E5%88%97/1.htm">爬虫系列</a><a class="tag" taget="_blank" href="/search/%E7%88%AC%E8%99%AB/1.htm">爬虫</a><a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/python/1.htm">python</a> <div>目录1、前言2、什么是网络爬虫3、常见的爬虫框架3.1、java框架3.1.1、WebMagic3.1.2、Jsoup3.1.3、HttpClient3.1.4、Crawler4j3.1.5、HtmlUnit3.1.6、Selenium3.2、Python框架3.2.1、Scrapy3.2.2、BeautifulSoup+Requests3.2.3、Selenium3.2.4、PyQuery3.2</div> </li> <li><a href="/article/1835435141535723520.htm" title="详解：如何设计出健壮的秒杀系统？" target="_blank">详解：如何设计出健壮的秒杀系统？</a> <span class="text-muted">夜空_2cd3</span> <div>作者：Yrion博客园：cnblogs.com/wyq178/p/11261711.html前言：秒杀系统相信很多人见过，比如京东或者淘宝的秒杀，小米手机的秒杀。那么秒杀系统的后台是如何实现的呢？我们如何设计一个秒杀系统呢？对于秒杀系统应该考虑哪些问题？如何设计出健壮的秒杀系统？本期我们就来探讨一下这个问题：image目录一：**秒杀系统应该考虑的问题二：*秒杀系统的设计和技术方案三：</div> </li> <li><a href="/article/1835428317084348416.htm" title="最简单将静态网页挂载到服务器上(不用nginx)" target="_blank">最简单将静态网页挂载到服务器上(不用nginx)</a> <span class="text-muted">全能全知者</span> <a class="tag" taget="_blank" href="/search/%E6%9C%8D%E5%8A%A1%E5%99%A8/1.htm">服务器</a><a class="tag" taget="_blank" href="/search/nginx/1.htm">nginx</a><a class="tag" taget="_blank" href="/search/%E8%BF%90%E7%BB%B4/1.htm">运维</a><a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a><a class="tag" taget="_blank" href="/search/html/1.htm">html</a><a class="tag" taget="_blank" href="/search/%E7%AC%94%E8%AE%B0/1.htm">笔记</a> <div>最简单将静态网页挂载到服务器上(不用nginx)如果随便弄个静态网页挂在服务器都要用nignx就太麻烦了，所以直接使用Apache来搭建一些简单前端静态网页会相对方便很多检查Web服务器服务状态：sudosystemctlstatushttpd#ApacheWeb服务器如果发现没有安装web服务器：安装Apache：sudoyuminstallhttpd启动Apache：sudosystemctl</div> </li> <li><a href="/article/1835427057752961024.htm" title="补充元象二面" target="_blank">补充元象二面</a> <span class="text-muted">Redstone Monstrosity</span> <a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a><a class="tag" taget="_blank" href="/search/%E9%9D%A2%E8%AF%95/1.htm">面试</a> <div>1.请尽可能详细地说明，防抖和节流的区别，应用场景？你的回答中不要写出示例代码。防抖（Debounce）和节流（Throttle）是两种常用的前端性能优化技术，它们的主要区别在于如何处理高频事件的触发。以下是防抖和节流的区别和应用场景的详细说明：防抖和节流的定义防抖：在一段时间内，多次执行变为只执行最后一次。防抖的原理是，当事件被触发后，设置一个延迟定时器。如果在这个延迟时间内事件再次被触发，则重</div> </li> <li><a href="/article/1835420753252675584.htm" title="微信小程序开发注意事项" target="_blank">微信小程序开发注意事项</a> <span class="text-muted">jun778895</span> <a class="tag" taget="_blank" href="/search/%E5%BE%AE%E4%BF%A1%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm">微信小程序</a><a class="tag" taget="_blank" href="/search/%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm">小程序</a> <div>微信小程序开发是一个融合了前端开发、用户体验设计、后端服务（可选）以及微信小程序平台特性的综合性项目。这里，我将详细介绍一个典型的小程序开发项目的全过程，包括项目规划、设计、开发、测试及部署上线等各个环节，并尽量使内容达到或超过2000字的要求。一、项目规划1.1项目背景与目标假设我们要开发一个名为“智慧校园助手”的微信小程序，旨在为学生提供一站式校园生活服务，包括课程表查询、图书馆座位预约、食堂</div> </li> <li><a href="/article/1835411044768509952.htm" title="字节二面" target="_blank">字节二面</a> <span class="text-muted">Redstone Monstrosity</span> <a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a><a class="tag" taget="_blank" href="/search/%E9%9D%A2%E8%AF%95/1.htm">面试</a> <div>1.假设你是正在面试前端开发工程师的候选人，面试官让你详细说出你上一段实习过程的收获和感悟。在上一段实习过程中，我获得了宝贵的实践经验和深刻的行业洞察，以下是我的主要收获和感悟：一、专业技能提升框架应用熟练度：通过实际项目，我深入掌握了React、Vue等前端框架的使用，不仅提升了编码效率，还学会了如何根据项目需求选择合适的框架。问题解决能力：在实习期间，我遇到了许多预料之外的技术难题。通过查阅文</div> </li> <li><a href="/article/1835403246865313792.htm" title="斟一小组鸡血视频" target="_blank">斟一小组鸡血视频</a> <span class="text-muted">和自己一起成长</span> <div>http://m.v.qq.com/play/play.html?coverid=&vid=c0518henl2a&ptag=2_6.0.0.14297_copy有一种努力叫做靠自己http://m.v.qq.com/play/play.html?coverid=&vid=i0547o426g4&ptag=2_6.0.0.14297_copy世界最励志短片https://v.qq.com/x/pa</div> </li> <li><a href="/article/1835398064727224320.htm" title="前端代码上传文件" target="_blank">前端代码上传文件</a> <span class="text-muted">余生逆风飞翔</span> <a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a><a class="tag" taget="_blank" href="/search/javascript/1.htm">javascript</a><a class="tag" taget="_blank" href="/search/%E5%BC%80%E5%8F%91%E8%AF%AD%E8%A8%80/1.htm">开发语言</a> <div>点击上传文件import{ElNotification}from'element-plus'import{API_CONFIG}from'../config/index.js'import{UploadFilled}from'@element-plus/icons-vue'import{reactive}from'vue'import{BASE_URL}from'../config/index'i</div> </li> <li><a href="/article/1835395039572881408.htm" title="Dockerfile命令详解之 FROM" target="_blank">Dockerfile命令详解之 FROM</a> <span class="text-muted">清风怎不知意</span> <a class="tag" taget="_blank" href="/search/%E5%AE%B9%E5%99%A8%E5%8C%96/1.htm">容器化</a><a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a><a class="tag" taget="_blank" href="/search/javascript/1.htm">javascript</a> <div>许多同学不知道Dockerfile应该如何写，不清楚Dockerfile中的指令分别有什么意义，能达到什么样的目的，接下来我将在容器化专栏中详细的为大家解释每一个指令的含义以及用法。专栏订阅传送门https://blog.csdn.net/qq_38220908/category_11989778.html指令不区分大小写。但是，按照惯例，它们应该是大写的，以便更容易地将它们与参数区分开来。(引用</div> </li> <li><a href="/article/1835389111658180608.htm" title="《HTML 与 CSS—— 响应式设计》" target="_blank">《HTML 与 CSS—— 响应式设计》</a> <span class="text-muted">陈在天box</span> <a class="tag" taget="_blank" href="/search/html/1.htm">html</a><a class="tag" taget="_blank" href="/search/css/1.htm">css</a><a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a> <div>一、引言在当今数字化时代，人们使用各种不同的设备访问互联网，包括智能手机、平板电脑、笔记本电脑和台式机等。为了确保网站在不同设备上都能提供良好的用户体验，响应式设计成为了网页开发的关键。HTML和CSS作为网页开发的基础技术，在实现响应式设计方面发挥着重要作用。本文将深入探讨HTML与CSS中的响应式设计原理、方法和最佳实践。二、响应式设计的概念与重要性（一）概念响应式设计是一种网页设计方法，旨在</div> </li> <li><a href="/article/1835387977480630272.htm" title="【C语言】- 自定义类型：结构体、枚举、联合" target="_blank">【C语言】- 自定义类型：结构体、枚举、联合</a> <span class="text-muted">Cavalier_01</span> <a class="tag" taget="_blank" href="/search/C%E8%AF%AD%E8%A8%80/1.htm">C语言</a> <div>【C语言】：操作符（https://mp.csdn.net/editor/html/115218055）数据类型（https://mp.csdn.net/editor/html/115219664）自定义类型：结构体、枚举、联合（https://mp.csdn.net/editor/html/115373785）变量、常量（https://mp.csdn.net/editor/html/11523</div> </li> <li><a href="/article/1835385458356482048.htm" title="uniapp实现动态标记效果详细步骤【前端开发】" target="_blank">uniapp实现动态标记效果详细步骤【前端开发】</a> <span class="text-muted">2401_85123349</span> <a class="tag" taget="_blank" href="/search/uni-app/1.htm">uni-app</a> <div>第二个点在于实现将已经被用户标记的内容在下一次获取后刷新它的状态为已标记。这是什么意思呢？比如说上面gif图中的这些人物对象，有一些已被该用户添加为关心，那么当用户下一次进入该页面时，这些已经被添加关心的对象需要以“红心”状态显现出来。这个点的难度还不算大，只需要在每一次获取后端的内容后对标记对象进行状态更新即可。II.动态标记效果实现思路和步骤首先，整体的思路是利用动态类名对不同的元素进行选择。</div> </li> <li><a href="/article/1835382685745377280.htm" title="html+css网页设计旅游网站首页1个页面" target="_blank">html+css网页设计旅游网站首页1个页面</a> <span class="text-muted">html+css+js网页设计</span> <a class="tag" taget="_blank" href="/search/html/1.htm">html</a><a class="tag" taget="_blank" href="/search/css/1.htm">css</a><a class="tag" taget="_blank" href="/search/%E6%97%85%E6%B8%B8/1.htm">旅游</a> <div>html+css网页设计旅游网站首页1个页面网页作品代码简单，可使用任意HTML辑软件（如：Dreamweaver、HBuilder、Vscode、Sublime、Webstorm、Text、Notepad++等任意html编辑软件进行运行及修改编辑等操作）。获取源码1，访问该网站https://download.csdn.net/download/qq_42431718/897527112，点击</div> </li> <li><a href="/article/1835379153730367488.htm" title="spring mvc @RequestBody String类型参数" target="_blank">spring mvc @RequestBody String类型参数</a> <span class="text-muted">zoyation</span> <a class="tag" taget="_blank" href="/search/spring-mvc/1.htm">spring-mvc</a><a class="tag" taget="_blank" href="/search/spring/1.htm">spring</a><a class="tag" taget="_blank" href="/search/mvc/1.htm">mvc</a> <div>通过如下配置：text/html;charset=UTF-8application/json;charset=UTF-8在springmvc的Controller层使用@RequestBody接收Content-Type为application/json的数据时，默认支持Map方式和对象方式参数@RequestMapping(value="/{code}/saveUser",method=Requ</div> </li> <li><a href="/article/1835377684025274368.htm" title="ubuntu安装opencv最快的方法" target="_blank">ubuntu安装opencv最快的方法</a> <span class="text-muted">Derek重名了</span> <div>最快方法，当然不能太多文字$sudoapt-getinstallpython-opencv借助python就可以把ubuntu的opencv环境搞起来，非常快非常容易参考：https://docs.opencv.org/trunk/d2/de6/tutorial_py_setup_in_ubuntu.html</div> </li> <li><a href="/article/1835376759739084800.htm" title="处理标签包裹的字符串，并取出前250字符" target="_blank">处理标签包裹的字符串，并取出前250字符</a> <span class="text-muted">周bro</span> <a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a><a class="tag" taget="_blank" href="/search/javascript/1.htm">javascript</a><a class="tag" taget="_blank" href="/search/%E5%BC%80%E5%8F%91%E8%AF%AD%E8%A8%80/1.htm">开发语言</a> <div>//假设这是你的HTML字符串varhtmlString=`这是一个段落。这是一个标题这是另一个段落，包含一些链接。`;//解析HTML字符串并提取文本functionextractTextFromHTML(html){varparser=newDOMParser();vardoc=parser.parseFromString(html,"text/html");vartextContent=do</div> </li> <li><a href="/article/1835373236217540608.htm" title="360前端星计划-动画可以这么玩" target="_blank">360前端星计划-动画可以这么玩</a> <span class="text-muted">马小蜗</span> <div>动画的基本原理定时器改变对象的属性根据新的属性重新渲染动画functionupdate(context){//更新属性}constticker=newTicker();ticker.tick(update,context);动画的种类1、JavaScript动画操作DOMCanvas2、CSS动画transitionanimation3、SVG动画SMILJS动画的优缺点优点：灵活度、可控性、性能</div> </li> <li><a href="/article/1835372727582683136.htm" title="h5小游戏定制开发" target="_blank">h5小游戏定制开发</a> <span class="text-muted">红匣子实力推荐</span> <div>随着科技的不断发展，移动互联网已经成为人们生活中不可或缺的一部分。在这个背景下，H5小游戏应运而生，为人们带来了丰富的娱乐体验。H5小游戏定制开发作为一种新兴的游戏开发方式，正逐渐受到市场的关注和青睐。那么，什么是H5小游戏定制开发呢？它又具有哪些特点和优势呢？让我们一起来深入了解一下。首先，我们来了解一下H5小游戏的基本概念。H5小游戏是一种基于HTML5技术的游戏，可以在移动端、PC端等多平台</div> </li> <li><a href="/article/1835368019430305792.htm" title="Vue + Express实现一个表单提交" target="_blank">Vue + Express实现一个表单提交</a> <span class="text-muted">九旬大爷的梦</span> <div>最近在折腾一个cms系统，用的vue+express，但是就一个表单提交就弄了好久，记录一下。环境：Node10+前端：Vue服务端：Express依赖包：vueexpressaxiosexpress-formidableelement-ui（可选）前言：axiosget请求参数是：paramsaxiospost请求参数是：dataexpressget接受参数是req.queryexpresspo</div> </li> <li><a href="/article/1835354700392787968.htm" title="Nginx的使用场景：构建高效、可扩展的Web架构" target="_blank">Nginx的使用场景：构建高效、可扩展的Web架构</a> <span class="text-muted">张某布响丸辣</span> <a class="tag" taget="_blank" href="/search/nginx/1.htm">nginx</a><a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a><a class="tag" taget="_blank" href="/search/%E6%9E%B6%E6%9E%84/1.htm">架构</a> <div>Nginx，作为当今最流行的Web服务器和反向代理软件之一，凭借其高性能、稳定性和灵活性，在众多Web项目中扮演着核心角色。无论是个人博客、中小型网站，还是大型企业级应用，Nginx都能提供强大的支持。本文将探讨Nginx的几个主要使用场景，帮助读者理解如何在实际项目中充分利用Nginx的优势。1.静态文件服务对于包含大量静态文件（如HTML、CSS、JavaScript、图片等）的网站，Ngin</div> </li> <li><a href="/article/15.htm" title="Spring4.1新特性——Spring MVC增强" target="_blank">Spring4.1新特性——Spring MVC增强</a> <span class="text-muted">jinnianshilongnian</span> <a class="tag" taget="_blank" href="/search/spring+4.1/1.htm">spring 4.1</a> <div>目录 Spring4.1新特性——综述 Spring4.1新特性——Spring核心部分及其他 Spring4.1新特性——Spring缓存框架增强 Spring4.1新特性——异步调用和事件机制的异常处理 Spring4.1新特性——数据库集成测试脚本初始化 Spring4.1新特性——Spring MVC增强 Spring4.1新特性——页面自动化测试框架Spring MVC T</div> </li> <li><a href="/article/142.htm" title="mysql 性能查询优化" target="_blank">mysql 性能查询优化</a> <span class="text-muted">annan211</span> <a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/sql/1.htm">sql</a><a class="tag" taget="_blank" href="/search/%E4%BC%98%E5%8C%96/1.htm">优化</a><a class="tag" taget="_blank" href="/search/mysql/1.htm">mysql</a><a class="tag" taget="_blank" href="/search/%E5%BA%94%E7%94%A8%E6%9C%8D%E5%8A%A1%E5%99%A8/1.htm">应用服务器</a> <div> 1 时间到底花在哪了？ mysql在执行查询的时候需要执行一系列的子任务，这些子任务包含了整个查询周期最重要的阶段，这其中包含了大量为了检索数据列到存储引擎的调用以及调用后的数据处理，包括排序、分组等。在完成这些任务的时候，查询需要在不同的地方花费时间，包括网络、cpu计算、生成统计信息和执行计划、锁等待等。尤其是向底层存储引擎检索数据的调用操作。这些调用需要在内存操</div> </li> <li><a href="/article/269.htm" title="windows系统配置" target="_blank">windows系统配置</a> <span class="text-muted">cherishLC</span> <a class="tag" taget="_blank" href="/search/windows/1.htm">windows</a> <div>删除Hiberfil.sys ：使用命令powercfg -h off 关闭休眠功能即可： http://jingyan.baidu.com/article/f3ad7d0fc0992e09c2345b51.html 类似的还有pagefile.sys msconfig 配置启动项 shutdown 定时关机 ipconfig 查看网络配置 ipconfig /flushdns</div> </li> <li><a href="/article/396.htm" title="人体的排毒时间" target="_blank">人体的排毒时间</a> <span class="text-muted">Array_06</span> <a class="tag" taget="_blank" href="/search/%E5%B7%A5%E4%BD%9C/1.htm">工作</a> <div>======================== \|\| 人体的排毒时间是什么时候？\|\| ======================== 转载于： http://zhidao.baidu.com/link?url=ibaGlicVslAQhVdWWVevU4TMjhiKaNBWCpZ1NS6igCQ78EkNJZFsEjCjl3T5EdXU9SaPg04bh8MbY1bR</div> </li> <li><a href="/article/523.htm" title="ZooKeeper" target="_blank">ZooKeeper</a> <span class="text-muted">cugfy</span> <a class="tag" taget="_blank" href="/search/zookeeper/1.htm">zookeeper</a> <div>Zookeeper是一个高性能，分布式的，开源分布式应用协调服务。它提供了简单原始的功能，分布式应用可以基于它实现更高级的服务，比如同步，配置管理，集群管理，名空间。它被设计为易于编程，使用文件系统目录树作为数据模型。服务端跑在java上，提供java和C的客户端API。 Zookeeper是Google的Chubby一个开源的实现，是高有效和可靠的协同工作系统，Zookeeper能够用来lea</div> </li> <li><a href="/article/650.htm" title="网络爬虫的乱码处理" target="_blank">网络爬虫的乱码处理</a> <span class="text-muted">随意而生</span> <a class="tag" taget="_blank" href="/search/%E7%88%AC%E8%99%AB/1.htm">爬虫</a><a class="tag" taget="_blank" href="/search/%E7%BD%91%E7%BB%9C/1.htm">网络</a> <div>下边简单总结下关于网络爬虫的乱码处理。注意，这里不仅是中文乱码，还包括一些如日文、韩文、俄文、藏文之类的乱码处理，因为他们的解决方式是一致的，故在此统一说明。网络爬虫，有两种选择，一是选择nutch、hetriex，二是自写爬虫，两者在处理乱码时，原理是一致的，但前者处理乱码时，要看懂源码后进行修改才可以，所以要废劲一些；而后者更自由方便，可以在编码处理</div> </li> <li><a href="/article/777.htm" title="Xcode常用快捷键" target="_blank">Xcode常用快捷键</a> <span class="text-muted">张亚雄</span> <a class="tag" taget="_blank" href="/search/xcode/1.htm">xcode</a> <div>一、总结的常用命令：隐藏xcode command+h 退出xcode command+q 关闭窗口 command+w 关闭所有窗口 command+option+w 关闭当前</div> </li> <li><a href="/article/904.htm" title="mongoDB索引操作" target="_blank">mongoDB索引操作</a> <span class="text-muted">adminjun</span> <a class="tag" taget="_blank" href="/search/mongodb/1.htm">mongodb</a><a class="tag" taget="_blank" href="/search/%E7%B4%A2%E5%BC%95/1.htm">索引</a> <div>一、索引基础： MongoDB的索引几乎与传统的关系型数据库一模一样，这其中也包括一些基本的优化技巧。下面是创建索引的命令： > db.test.ensureIndex({"username":1}) 可以通过下面的名称查看索引是否已经成功建立： &nbs</div> </li> <li><a href="/article/1031.htm" title="成都软件园实习那些话" target="_blank">成都软件园实习那些话</a> <span class="text-muted">aijuans</span> <a class="tag" taget="_blank" href="/search/%E6%88%90%E9%83%BD+%E8%BD%AF%E4%BB%B6%E5%9B%AD+%E5%AE%9E%E4%B9%A0/1.htm">成都软件园实习</a> <div>无聊之中，翻了一下日志，发现上一篇经历是很久以前的事了，悔过~~ 　　断断续续离开了学校快一年了，习惯了那里一天天的幼稚、成长的环境，到这里有点与世隔绝的感觉。不过还好，那是刚到这里时的想法，现在感觉在这挺好，不管怎么样，最要感谢的还是老师能给这么好的一次催化成长的机会，在这里确实看到了好多好多能想到或想不到的东西。　　都说在外面和学校相比最明显的差距就是与人相处比较困难，因为在外面每个人都</div> </li> <li><a href="/article/1158.htm" title="Linux下FTP服务器安装及配置" target="_blank">Linux下FTP服务器安装及配置</a> <span class="text-muted">ayaoxinchao</span> <a class="tag" taget="_blank" href="/search/linux/1.htm">linux</a><a class="tag" taget="_blank" href="/search/FTP%E6%9C%8D%E5%8A%A1%E5%99%A8/1.htm">FTP服务器</a><a class="tag" taget="_blank" href="/search/vsftp/1.htm">vsftp</a> <div>检测是否安装了FTP [root@localhost ~]# rpm -q vsftpd 如果未安装：package vsftpd is not installed 安装了则显示：vsftpd-2.0.5-28.el5累死的版本信息安装FTP 运行yum install vsftpd命令，如[root@localhost ~]# yum install vsf</div> </li> <li><a href="/article/1285.htm" title="使用mongo-java-driver获取文档id和查找文档" target="_blank">使用mongo-java-driver获取文档id和查找文档</a> <span class="text-muted">BigBird2012</span> <a class="tag" taget="_blank" href="/search/driver/1.htm">driver</a> <div>注：本文所有代码都使用的mongo-java-driver实现。在MongoDB中，一个集合（collection）在概念上就类似我们SQL数据库中的表（Table），这个集合包含了一系列文档（document）。一个DBObject对象表示我们想添加到集合（collection）中的一个文档（document），MongoDB会自动为我们创建的每个文档添加一个id，这个id在</div> </li> <li><a href="/article/1412.htm" title="JSONObject以及json串" target="_blank">JSONObject以及json串</a> <span class="text-muted">bijian1013</span> <a class="tag" taget="_blank" href="/search/json/1.htm">json</a><a class="tag" taget="_blank" href="/search/JSONObject/1.htm">JSONObject</a> <div>一.JAR包简介要使程序可以运行必须引入JSON-lib包，JSON-lib包同时依赖于以下的JAR包： 1.commons-lang-2.0.jar 2.commons-beanutils-1.7.0.jar 3.commons-collections-3.1.jar &n</div> </li> <li><a href="/article/1539.htm" title="[Zookeeper学习笔记之三]Zookeeper实例创建和会话建立的异步特性" target="_blank">[Zookeeper学习笔记之三]Zookeeper实例创建和会话建立的异步特性</a> <span class="text-muted">bit1129</span> <a class="tag" taget="_blank" href="/search/zookeeper/1.htm">zookeeper</a> <div>为了说明问题，看个简单的代码， import org.apache.zookeeper.*; import java.io.IOException; import java.util.concurrent.CountDownLatch; import java.util.concurrent.ThreadLocal</div> </li> <li><a href="/article/1666.htm" title="【Scala十二】Scala核心六：Trait" target="_blank">【Scala十二】Scala核心六：Trait</a> <span class="text-muted">bit1129</span> <a class="tag" taget="_blank" href="/search/scala/1.htm">scala</a> <div>Traits are a fundamental unit of code reuse in Scala. A trait encapsulates method and field definitions, which can then be reused by mixing them into classes. Unlike class inheritance, in which each c</div> </li> <li><a href="/article/1793.htm" title="weblogic version 10.3破解" target="_blank">weblogic version 10.3破解</a> <span class="text-muted">ronin47</span> <a class="tag" taget="_blank" href="/search/weblogic/1.htm">weblogic</a> <div>版本：WebLogic Server 10.3 说明：%DOMAIN_HOME%：指WebLogic Server 域(Domain）目录例如我的做测试的域的根目录 DOMAIN_HOME=D:/Weblogic/Middleware/user_projects/domains/base_domain 1.为了保证操作安全，备份%DOMAIN_HOME%/security/Defa</div> </li> <li><a href="/article/1920.htm" title="求第n个斐波那契数" target="_blank">求第n个斐波那契数</a> <span class="text-muted">BrokenDreams</span> <div> 今天看到群友发的一个问题：写一个小程序打印第n个斐波那契数。自己试了下，搞了好久。。。基础要加强了。 &nbs</div> </li> <li><a href="/article/2047.htm" title="读《研磨设计模式》-代码笔记-访问者模式-Visitor" target="_blank">读《研磨设计模式》-代码笔记-访问者模式-Visitor</a> <span class="text-muted">bylijinnan</span> <a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F/1.htm">设计模式</a> <div>声明：本文只为方便我个人查阅和理解，详细的分析以及源代码请移步原作者的博客http://chjavach.iteye.com/ import java.util.ArrayList; import java.util.List; interface IVisitor { //第二次分派，Visitor调用Element void visitConcret</div> </li> <li><a href="/article/2174.htm" title="MatConvNet的excise 3改为网络配置文件形式" target="_blank">MatConvNet的excise 3改为网络配置文件形式</a> <span class="text-muted">cherishLC</span> <a class="tag" taget="_blank" href="/search/matlab/1.htm">matlab</a> <div>MatConvNet为vlFeat作者写的matlab下的卷积神经网络工具包，可以使用GPU。主页： http://www.vlfeat.org/matconvnet/ 教程： http://www.robots.ox.ac.uk/~vgg/practicals/cnn/index.html 注意：需要下载新版的MatConvNet替换掉教程中工具包中的matconvnet： http</div> </li> <li><a href="/article/2301.htm" title="ZK Timeout再讨论" target="_blank">ZK Timeout再讨论</a> <span class="text-muted">chenchao051</span> <a class="tag" taget="_blank" href="/search/zookeeper/1.htm">zookeeper</a><a class="tag" taget="_blank" href="/search/timeout/1.htm">timeout</a><a class="tag" taget="_blank" href="/search/hbase/1.htm">hbase</a> <div>http://crazyjvm.iteye.com/blog/1693757 文中提到相关超时问题，但是又出现了一个问题，我把min和max都设置成了180000，但是仍然出现了以下的异常信息： Client session timed out, have not heard from server in 154339ms for sessionid 0x13a3f7732340003</div> </li> <li><a href="/article/2428.htm" title="CASE WHEN 用法介绍" target="_blank">CASE WHEN 用法介绍</a> <span class="text-muted">daizj</span> <a class="tag" taget="_blank" href="/search/sql/1.htm">sql</a><a class="tag" taget="_blank" href="/search/group+by/1.htm">group by</a><a class="tag" taget="_blank" href="/search/case+when/1.htm">case when</a> <div>CASE WHEN 用法介绍 1. CASE WHEN 表达式有两种形式 --简单Case函数 CASE sex WHEN '1' THEN '男' WHEN '2' THEN '女' ELSE '其他' END --Case搜索函数 CASE WHEN sex = '1' THEN </div> </li> <li><a href="/article/2555.htm" title="PHP技巧汇总:提高PHP性能的53个技巧" target="_blank">PHP技巧汇总:提高PHP性能的53个技巧</a> <span class="text-muted">dcj3sjt126com</span> <a class="tag" taget="_blank" href="/search/PHP/1.htm">PHP</a> <div>PHP技巧汇总:提高PHP性能的53个技巧　　用单引号代替双引号来包含字符串，这样做会更快一些。因为PHP会在双引号包围的字符串中搜寻变量，　　单引号则不会，注意：只有echo能这么做，它是一种可以把多个字符串当作参数的函数译注：　　PHP手册中说echo是语言结构，不是真正的函数，故把函数加上了双引号)。　　1、如果能将类的方法定义成static，就尽量定义成static，它的速度会提升将近4倍</div> </li> <li><a href="/article/2682.htm" title="Yii框架中CGridView的使用方法以及详细示例" target="_blank">Yii框架中CGridView的使用方法以及详细示例</a> <span class="text-muted">dcj3sjt126com</span> <a class="tag" taget="_blank" href="/search/yii/1.htm">yii</a> <div>CGridView显示一个数据项的列表中的一个表。表中的每一行代表一个数据项的数据,和一个列通常代表一个属性的物品(一些列可能对应于复杂的表达式的属性或静态文本)。　　CGridView既支持排序和分页的数据项。排序和分页可以在AJAX模式或正常的页面请求。使用CGridView的一个好处是,当用户浏览器禁用JavaScript,排序和分页自动退化普通页面请求和仍然正常运行。实例代码如下：</div> </li> <li><a href="/article/2809.htm" title="Maven项目打包成可执行Jar文件" target="_blank">Maven项目打包成可执行Jar文件</a> <span class="text-muted">dyy_gusi</span> <a class="tag" taget="_blank" href="/search/assembly/1.htm">assembly</a> <div>Maven项目打包成可执行Jar文件在使用Maven完成项目以后，如果是需要打包成可执行的Jar文件，我们通过eclipse的导出很麻烦，还得指定入口文件的位置，还得说明依赖的jar包，既然都使用Maven了，很重要的一个目的就是让这些繁琐的操作简单。我们可以通过插件完成这项工作，使用assembly插件。具体使用方式如下： 1、在项目中加入插件的依赖： <plugin> </div> </li> <li><a href="/article/2936.htm" title="php常见错误" target="_blank">php常见错误</a> <span class="text-muted">geeksun</span> <a class="tag" taget="_blank" href="/search/PHP/1.htm">PHP</a> <div>1. kevent() reported that connect() failed (61: Connection refused) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "fastc</div> </li> <li><a href="/article/3063.htm" title="修改linux的用户名" target="_blank">修改linux的用户名</a> <span class="text-muted">hongtoushizi</span> <a class="tag" taget="_blank" href="/search/linux/1.htm">linux</a><a class="tag" taget="_blank" href="/search/change+password/1.htm">change password</a> <div>Change Linux Username 更改Linux用户名，需要修改4个系统的文件： /etc/passwd /etc/shadow /etc/group /etc/gshadow 古老/传统的方法是使用vi去直接修改，但是这有安全隐患（具体可自己搜一下），所以后来改成使用这些命令去代替： vipw vipw -s vigr vigr -s 具体的操作顺</div> </li> <li><a href="/article/3190.htm" title="第五章常用Lua开发库1-redis、mysql、http客户端" target="_blank">第五章常用Lua开发库1-redis、mysql、http客户端</a> <span class="text-muted">jinnianshilongnian</span> <a class="tag" taget="_blank" href="/search/nginx/1.htm">nginx</a><a class="tag" taget="_blank" href="/search/lua/1.htm">lua</a> <div>对于开发来说需要有好的生态开发库来辅助我们快速开发，而Lua中也有大多数我们需要的第三方开发库如Redis、Memcached、Mysql、Http客户端、JSON、模板引擎等。一些常见的Lua库可以在github上搜索，https://github.com/search?utf8=%E2%9C%93&q=lua+resty。 Redis客户端 lua-resty-r</div> </li> <li><a href="/article/3317.htm" title="zkClient 监控机制实现" target="_blank">zkClient 监控机制实现</a> <span class="text-muted">liyonghui160com</span> <a class="tag" taget="_blank" href="/search/zkClient+%E7%9B%91%E6%8E%A7%E6%9C%BA%E5%88%B6%E5%AE%9E%E7%8E%B0/1.htm">zkClient 监控机制实现</a> <div> 直接使用zk的api实现业务功能比较繁琐。因为要处理session loss，session expire等异常，在发生这些异常后进行重连。又因为ZK的watcher是一次性的，如果要基于wather实现发布/订阅模式，还要自己包装一下，将一次性订阅包装成持久订阅。另外如果要使用抽象级别更高的功能，比如分布式锁，leader选举</div> </li> <li><a href="/article/3444.htm" title="在Mysql 众多表中查找一个表名或者字段名的 SQL 语句" target="_blank">在Mysql 众多表中查找一个表名或者字段名的 SQL 语句</a> <span class="text-muted">pda158</span> <a class="tag" taget="_blank" href="/search/mysql/1.htm">mysql</a> <div>在Mysql 众多表中查找一个表名或者字段名的 SQL 语句：　　方法一：SELECT table_name, column_name from information_schema.columns WHERE column_name LIKE 'Name'; 　　方法二：SELECT column_name from information_schema.colum</div> </li> <li><a href="/article/3571.htm" title="程序员对英语的依赖" target="_blank">程序员对英语的依赖</a> <span class="text-muted">Smile.zeng</span> <a class="tag" taget="_blank" href="/search/%E8%8B%B1%E8%AF%AD/1.htm">英语</a><a class="tag" taget="_blank" href="/search/%E7%A8%8B%E5%BA%8F%E7%8C%BF/1.htm">程序猿</a> <div>1、程序员最基本的技能，至少要能写得出代码，当我们还在为建立类的时候思考用什么单词发牢骚的时候，英语与别人的差距就直接表现出来咯。 2、程序员最起码能认识开发工具里的英语单词，不然怎么知道使用这些开发工具。 3、进阶一点，就是能读懂别人的代码，有利于我们学习人家的思路和技术。 4、写的程序至少能有一定的可读性，至少要人别人能懂吧... 以上一些问题，充分说明了英语对程序猿的重要性。骚年</div> </li> <li><a href="/article/3698.htm" title="Oracle学习笔记(8) 使用PLSQL编写触发器" target="_blank">Oracle学习笔记(8) 使用PLSQL编写触发器</a> <span class="text-muted">vipbooks</span> <a class="tag" taget="_blank" href="/search/oracle/1.htm">oracle</a><a class="tag" taget="_blank" href="/search/sql/1.htm">sql</a><a class="tag" taget="_blank" href="/search/%E7%BC%96%E7%A8%8B/1.htm">编程</a><a class="tag" taget="_blank" href="/search/%E6%B4%BB%E5%8A%A8/1.htm">活动</a><a class="tag" taget="_blank" href="/search/Access/1.htm">Access</a> <div> 时间过得真快啊，转眼就到了Oracle学习笔记的最后个章节了，通过前面七章的学习大家应该对Oracle编程有了一定了了解了吧，这东东如果一段时间不用很快就会忘记了，所以我会把自己学习过的东西做好详细的笔记，用到的时候可以随时查找，马上上手！希望这些笔记能对大家有些帮助！这是第八章的学习笔记，学习完第七章的子程序和包之后</div> </li> </ul> </div> </div> </div> <div> <div class="container"> <div class="indexes"> <strong>按字母分类：</strong> <a href="/tags/A/1.htm" target="_blank">A</a><a href="/tags/B/1.htm" target="_blank">B</a><a href="/tags/C/1.htm" target="_blank">C</a><a href="/tags/D/1.htm" target="_blank">D</a><a href="/tags/E/1.htm" target="_blank">E</a><a href="/tags/F/1.htm" target="_blank">F</a><a href="/tags/G/1.htm" target="_blank">G</a><a href="/tags/H/1.htm" target="_blank">H</a><a href="/tags/I/1.htm" target="_blank">I</a><a href="/tags/J/1.htm" target="_blank">J</a><a href="/tags/K/1.htm" target="_blank">K</a><a href="/tags/L/1.htm" target="_blank">L</a><a href="/tags/M/1.htm" target="_blank">M</a><a href="/tags/N/1.htm" target="_blank">N</a><a href="/tags/O/1.htm" target="_blank">O</a><a href="/tags/P/1.htm" target="_blank">P</a><a href="/tags/Q/1.htm" target="_blank">Q</a><a href="/tags/R/1.htm" target="_blank">R</a><a href="/tags/S/1.htm" target="_blank">S</a><a href="/tags/T/1.htm" target="_blank">T</a><a href="/tags/U/1.htm" target="_blank">U</a><a href="/tags/V/1.htm" target="_blank">V</a><a href="/tags/W/1.htm" target="_blank">W</a><a href="/tags/X/1.htm" target="_blank">X</a><a href="/tags/Y/1.htm" target="_blank">Y</a><a href="/tags/Z/1.htm" target="_blank">Z</a><a href="/tags/0/1.htm" target="_blank">其他</a> </div> </div> </div> <footer id="footer" class="mb30 mt30"> <div class="container"> <div class="footBglm"> <a target="_blank" href="/">首页</a> - <a target="_blank" href="/custom/about.htm">关于我们</a> - <a target="_blank" href="/search/Java/1.htm">站内搜索</a> - <a target="_blank" href="/sitemap.txt">Sitemap</a> - <a target="_blank" href="/custom/delete.htm">侵权投诉</a> </div> <div class="copyright">版权所有 IT知识库 CopyRight © 2000-2050 E-COM-NET.COM , All Rights Reserved. <!-- <a href="https://beian.miit.gov.cn/" rel="nofollow" target="_blank">京ICP备09083238号</a><br>--> </div> </div> </footer> <!-- 代码高亮 --> <script type="text/javascript" src="/static/syntaxhighlighter/scripts/shCore.js"></script> <script type="text/javascript" src="/static/syntaxhighlighter/scripts/shLegacy.js"></script> <script type="text/javascript" src="/static/syntaxhighlighter/scripts/shAutoloader.js"></script> <link type="text/css" rel="stylesheet" href="/static/syntaxhighlighter/styles/shCoreDefault.css"/> <script type="text/javascript" src="/static/syntaxhighlighter/src/my_start_1.js"></script> </body> </html>