关于jquery
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="test.aspx.cs" Inherits="Test.test" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(function () {
$("#test").bind("click", function () {
//select下拉 .text()表示填充文本;.val()表示获取选择元素的值
//var _select = $("select option:selected").text();// .val();
//var _select = $("input[name^='news']").val();
var _select = "";
$.each($("input[name^='news']"), function (i, n) {
_select += $(n).val() + ",";
});
if (_select.length > 0)
_select = _select.substr(0,_select.length-1);
//$.each($("input[name^='news']"));// 正则表达式规则，所以^代表开始,$代表结尾 /^ $/
//$.each("input[name*='news']");//所有对象中包含news的元素
//lastindexof从0开始计数
/* var str = "Hello world!"
document.writeln(str.lastIndexOf("Hello"));
document.writeln(str.lastIndexOf("World"));
document.write(str.lastIndexOf("world")); */
/*var _val = "我是测试,";
//var _val = _val.substr(0,_val.length-1);//从0开始
_val = _val.substring(0,2);//包括开始的位置，不包含结束的
alert(_val);
*/
/* var str1 = "我是测试是";//出现第一个“是”的位置，
var s = str1.indexOf("是");//1
var s1 = str1.lastIndexOf("是");//4，最后一个“是”
alert(s+", " + s1); */
//$("p").prependTo("#foo");
//$("p").toggle();//切换隐藏/可见
//$("p").toggle(true);// <p>Hello</p><p style>Hello Again</p> 2个都显示
//$("#results").append("<tt>" + $("form").serialize() + "</tt>");
//判断是否为数组
var a = new Array();
a.push("张三");
a.push(1);
alert($.isArray(a)); // true
var obj = {};
obj[0] = 10;
obj[1] = 25;
obj[2] = 3;
obj.length = 3;
// obj是一个类数组对象，但它仍然不是一个真正的数组
alert($.isArray(obj)); // false
});
});
</script>
</head>
<body>
<div>
<p id="results"><b>Results:</b> </p>
<form>
<select name="single">
<option>Single</option>
<option>Single2</option>
</select>
<select name="multiple" multiple="multiple">
<option selected="selected">Multiple</option>
<option>Multiple2</option>
<option selected="selected">Multiple3</option>
</select><br/>
<input type="checkbox" name="check" value="check1"/> check1
<input type="checkbox" name="check" value="check2" checked="checked"/> check2
<input type="radio" name="radio" value="radio1" checked="checked"/> radio1
<input type="radio" name="radio" value="radio2"/> radio2
</form>
<!--<p>Hello</p><p style="display: none">Hello Again</p>
<p>I would like to say: </p><div id="foo"></div> -->
<input name="newsletter" value="Flowers" style=" display:none;" />
<input name="milkman" value="2" style=" display:none;" />
<input name="newsboy" value="Trees" style=" display:none;" />
<select style="display:none;">
<option value="1">Flowers</option>
<option value="2">Gardens</option>
<option value="3">Trees</option>
</select>
<button id="test" style=" width:70px; height:20px;">点击测试</button>
</div>
</body>
</html>