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【Python】sys库的介绍及用法
目录1、sys库的应用场景2、sys库-标准库1、sys库的应用场景Python的sys库是一个内建的模块，它提供了对Python解释器强大的访问接口，常见的应用场景如下：
命令
行参数：通过sys.argv
"啦啦啦"
·
2024-09-07 05:52
python
python
笔记
熟悉Python Interpreter解释器
5.2如何编写中文注释5.3如何执行.py文件.启动python解释器;上一篇中，我们安装了python，并且在eclipse下安装了pydev插件，并且熟悉了这个ide的开发环境，这里我们将看看如何在
命令
行下玩一下
weixin_30851867
·
2024-09-07 04:49
python
操作系统
开发工具
vue前端实现打印功能
方案一：window.print()这个
命令
默认打印整个页面的内容，所以，如果想要实现局部打印功能的话，就要重新给body赋值，并且后续执行完之后再还原回去，这样的话会造成一些非预期的结果，很麻烦，并且在当前也操作
是小芳芳呀
·
2024-09-07 04:17
前端
前端
javascript
html
vue.js
关于nginx配置文件不起作用的解决
解决方法：重启电脑后，直接点击nginx.exe,这时桌面会忽闪一下，说明启动成功，注意不要在
命令
行窗口启动。然后你再看看项目是否可以跑通。
java_upp
·
2024-09-07 04:16
Nginx
配置
跨域
重启
项目
第三章：发送AJAX请求的几种方式
1.jquery发送Ajax请求1.1引进jQuery资源进入bootcdn.cn网站搜索jQuery复制script
标签
放到目标html文件head
标签
中添加跨源的属性的设置crossorigin="
Muko_0x7d2
·
2024-09-07 04:44
AJAX
ajax
python离线下载第三方库
打开
命令
行，进入该文件夹下面。运行以下
命令
：路径>pythonsetup.pyinstall,就能把这个第三库安装到系统里：先解压到能够有setup.py的文件，后面就好了。
小木可菜鸟测试一枚
·
2024-09-07 02:08
python
python
开发语言
后端
salmon分析RNA-seq实战
Salmon应用查看帮助文档#查看可用的
命令
###Salmonv0.9.1salmon-h#查看帮助文档之Salmon'squasi-mapping-basedmodesalmon--no-version-checkquant
超级无敌大蜗牛
·
2024-09-07 02:46
常见面试3
1.是否做过jvm的调优jvm参数之前在工作的时候偶尔做过，每次都是需要的时候去查询文档一般情况下都是使用默认值，只有真正需要调优会去重新设置默认值主要jvm参数分为三种标准参数：主要用于查看一些基本
命令
值比如的话
LongProgrammer
·
2024-09-07 02:36
面试
职场和发展
<em>标签</em>告诉你答案</h4> </div> <div class="article-excerpt"> 本篇文章主要为大家介绍了htmliframe<em>标签</em>的介绍，让大家知道怎么通过iframe<em>标签</em>来为网页嵌套页面，内容很简单，大家照着这上面的来，多实践几次就懂了。 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> PHP9年架构师<span class="dot">·</span>2024-09-07 02:06 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832114680320061440.htm" ></a> <a target="_blank" href="/article/1832114680320061440.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">vscode 文件追踪_VsCode 技巧和常用插件收集</h4> </div> <div class="article-excerpt"> [TOC]快捷键配置常用快捷键功能macOSlinux/windows用途<em>命令</em>模式cmd+shift+pctrl+shift+p各种指令功能都靠这个快键<em>命令</em>cmd+pctrl+p快速打开文件，或者执行指令呼出配置界面 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> HcLyQ<span class="dot">·</span>2024-09-07 01:33 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/vscode/1.htm"> vscode </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%96%87%E4%BB%B6%E8%BF%BD%E8%B8%AA/1.htm"> 文件追踪 </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832112410719252480.htm" ></a> <a target="_blank" href="/article/1832112410719252480.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">Python psutil模块</h4> </div> <div class="article-excerpt"> 在Linux下，有许多系统<em>命令</em>可以让我们时刻监控系统运行的状态，如ps，top，free等等。要获取这些系统信息，Python可以通过subprocess模块调用并获取结果。 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> Python 学习者<span class="dot">·</span>2024-09-07 01:32 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E7%BC%96%E7%A8%8B%E8%AF%AD%E8%A8%80/1.htm"> 编程语言 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/python/1.htm"> python </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832110773795647488.htm" ></a> <a target="_blank" href="/article/1832110773795647488.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">MySQL复习笔记</h4> </div> <div class="article-excerpt"> 分组查询四、查询结果去重五、连接查询六、子查询七、union八、limitDML一、insert二、update三、deleteDDL一、表的创建二、删除表三、快速删除表中数据四、约束TCLDCL二、常用<em>命令</em>三 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> new wei<span class="dot">·</span>2024-09-07 01:02 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/java/1.htm"> java </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/mysql/1.htm"> mysql </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832109387297157120.htm" class='news-img' style="background-image:url('http://img.e-com-net.com/image/info8/70cfb395fa8c49a6b1d52affb3f82ecf.jpg@!80x60')" ></a> <a target="_blank" href="/article/1832109387297157120.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">系统信息性能模块psutil</h4> </div> <div class="article-excerpt"> psutil是一个跨平台库（第三方库/模块），能够获取系统进程进程及CPU，内存，磁盘、网络使用率等信息；主要用于监控系统，分析和限制系统资源及进程的管理它实现了n多个同等<em>命令</em>行工具实现的功能，如ps、 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 浅水鲤鱼<span class="dot">·</span>2024-09-07 01:32 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/linux/1.htm"> linux </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E8%BF%90%E7%BB%B4/1.htm"> 运维 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%9C%8D%E5%8A%A1%E5%99%A8/1.htm"> 服务器 </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832106614740578304.htm" class='news-img' style="background-image:url('http://img.e-com-net.com/image/info8/bcea8cae06f14530a8ede8b465a2ddd5.jpg@!80x60')" ></a> <a target="_blank" href="/article/1832106614740578304.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">vi/vim编辑器·</h4> </div> <div class="article-excerpt"> 目录vi/vim概念vi/vim的三种模式及各个模式之间的转换关系模式切换操作步骤编辑<em>命令</em>和快捷方式插入<em>命令</em>:(一般模式进入到插入模式)定位<em>命令</em>:替换和取消<em>命令</em>（一般模式下）:删除<em>命令</em>:（从光标开始删， </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 开花沼泽.<span class="dot">·</span>2024-09-07 01:31 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E7%BC%96%E8%BE%91%E5%99%A8/1.htm"> 编辑器 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/vim/1.htm"> vim </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/linux/1.htm"> linux </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832105984995192832.htm" class='news-img' style="background-image:url('http://img.e-com-net.com/image/info8/33c9c5605a6440aa917fc34036bc9535.jpg@!80x60')" ></a> <a target="_blank" href="/article/1832105984995192832.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">sql注入漏洞</h4> </div> <div class="article-excerpt"> 所谓SQL注入，就是通过把SQL<em>命令</em>插入到Web表单提交或输入域名或页面请求的查询字符串，最终达到欺骗服务器执行指定的SQL语句。 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> mineflame_<span class="dot">·</span>2024-09-07 01:00 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/sql/1.htm"> sql </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832102326786158592.htm" ></a> <a target="_blank" href="/article/1832102326786158592.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">在 Vue 3 中，如何使用 Teleport 来优化组件的 DOM 结构？</h4> </div> <div class="article-excerpt"> 这在某些情况下可以优化组件的DOM结构，例如当你需要将弹窗、侧边栏、对话框等组件渲染到body<em>标签</em>的直接子元素中，而不是嵌套在当前组件的DOM结构中时。 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 盼盼盼<span class="dot">·</span>2024-09-07 01:28 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E9%9D%A2%E8%AF%95%E9%A2%98/1.htm"> 面试题 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/vue/1.htm"> vue </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%89%8D%E7%AB%AF/1.htm"> 前端 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/vue.js/1.htm"> vue.js </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/javascript/1.htm"> javascript </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/ecmascript/1.htm"> ecmascript </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832100558849273856.htm" ></a> <a target="_blank" href="/article/1832100558849273856.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">linux<em>命令</em>之服务器之间文件传输</h4> </div> <div class="article-excerpt"> 目录前言一、scp<em>命令</em>1.简单用法：2.使用示例：2.1.复制文件到本地2.2.复制文件夹到本地二、sftp<em>命令</em>1.简单用法：2.使用示例2.1下载文件2.2上传文件总结前言在使用linux服务器时，有可能会需要在服务器之间传入文件 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> abments<span class="dot">·</span>2024-09-07 00:27 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/linux%E5%B8%B8%E7%94%A8%E5%91%BD%E4%BB%A4/1.htm"> linux常用命令 </a> </li> <li 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</span> </span> <ul class="taglist--inline inline-block article__title--tag"> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832097811273969664.htm" ></a> <a target="_blank" href="/article/1832097811273969664.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">JavaBean</h4> </div> <div class="article-excerpt"> JavaBean的使用场景：1）项目中用到的实体对象2）EL表达式中用到的访问对象的属性3）jsp<em>标签</em>张的属性赋值jsp中创建对象以及给对象属性赋值以及获取属性值的usebean也 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 我是邱邱<span class="dot">·</span>2024-09-07 00:32 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832096777285758976.htm" ></a> <a target="_blank" href="/article/1832096777285758976.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">Python 高级技巧：利用 psutil 和 subprocess 实现程序监控与管理</h4> </div> <div class="article-excerpt"> 它允许你执行系统<em>命令</em>或其他可执 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 散一世繁华，颠半世琉璃<span class="dot">·</span>2024-09-07 00:25 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/Python/1.htm"> Python </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/python/1.htm"> python </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832095516662525952.htm" ></a> <a target="_blank" href="/article/1832095516662525952.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">Redis配置</h4> </div> <div class="article-excerpt"> redis配置管理可以直接打开配置文件进行查看和修改，也可以通过config<em>命令</em>来进行查看和修改。配置文件位置Linux中默认在/etc/redis/redis.conf。 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> collman<span class="dot">·</span>2024-09-07 00:25 </span> </span> <ul class="taglist--inline inline-block article__title--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/Redis/1.htm"> Redis </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/redis/1.htm"> redis </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%95%B0%E6%8D%AE%E5%BA%93/1.htm"> 数据库 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E7%BC%93%E5%AD%98/1.htm"> 缓存 </a> </li> </ul> </div> </div> </div> <div class="news-item stream__item clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832091990121082880.htm" ></a> <a target="_blank" 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