• 第四篇：web之前端之jquery

    前端之jquery

     

    前端之jquery

    本节内容

    1. jquery简介
    2. 选择器和筛选器
    3. 操作元素
    4. 示例

    1. jquery简介

    1 jquery是什么

    • jQuery由美国人John Resig创建，至今已吸引了来自世界各地的众多 javascript高手加入其team。
    • jQuery是继prototype之后又一个优秀的Javascript框架。其宗旨是——WRITE LESS,DO MORE,写更少的代码,做更多的事情。
    • 它是轻量级的js库(压缩后只有21k) ，这是其它的js库所不及的，它兼容CSS3，还兼容各种浏览器 （IE 6.0+, FF 1.5+, Safari 2.0+, Opera 9.0+）。
    • jQuery是一个快速的，简洁的javaScript库，使用户能更方便地处理HTML documents、events、实现动画效果，并且方便地为网站提供AJAX交互。
    • jQuery还有一个比较大的优势是，它的文档说明很全，而且各种应用也说得很详细，同时还有许多成熟的插件可供选择。
    • jQuery能够使用户的html页保持代码和html内容分离，也就是说，不用再在html里面插入一堆js来调用命令了，只需定义id即可。

    2 什么是jQuery对象？

    • jQuery 对象就是通过jQuery包装DOM对象后产生的对象。
    • jQuery 对象是 jQuery 独有的. 如果一个对象是 jQuery 对象, 那么它就可以使用 jQuery 里的方法: $(“#test”).html();

    比如:

    $("#test").html()   意思是指：获取ID为test的元素内的html代码。其中html()是jQuery里的方法

    这段代码等同于用DOM实现代码： document.getElementById(“ test “).innerHTML;

    虽然jQuery对象是包装DOM对象后产生的，但是jQuery无法使用DOM对象的任何方法，同理DOM对象也不能使用jQuery里的方法.乱使用会报错

    约定：如果获取的是 jQuery 对象, 那么要在变量前面加上$.

    var $variable = jQuery 对象

    var variable = DOM 对象

    2. 选择器和筛选器

    2.1. 选择器

    2.1.1 基本选择器

    • $(“*”) //选择所有元素
    • $(“#id”) //选择ID元素
    • $(“.class”) //选择class名
    • $(“element”) //选择标签名
    • $(“.class,p,div”) //多个选择同时选中

    2.1.2 层级选择器

    • $(“.outer div”) //.outer选中下的子孙辈的div标签
    • $(“.outer>div”) //.outber选中下的儿子标签中的div标签
    • $(“.outer+div”) //.outer选中下的毗邻的div标签===>(“.outer”).next(“div”)等价
    • $(“.outer~div”) //.outer选中下的下面兄弟中的div标签===>$(“.outer”).nextAll(“div”)等价

    2.1.3 基本筛选器

    • $(“li:first”) //找到的所有li标签中的第一个标签
    • $(“li:eq(2)”) //找到的所有li标签中的第二个标签
    • $(“li:even”) //找到的所有li标签中计数为偶数的标签
    • $(“li:gt(1)”) //找到的所有li标签中计数大于1的标签

    2.1.4 属性选择器

    • $(‘[id=”div1”]’) //标签中的id属性等于div1的标签
    • $(‘[“alex=”sb”][id]’) //标签中的alex属性等于sb的标签中含有id属性的标签

    2.1.5 表单选择器

    • $(“[type=’text’]”)——->$(“:text”) 注意只适用于input标签 $(“input:checked”)

    2.2. 筛选器

    2.2.1. 过滤筛选器

    • $(“li”).eq(2) //找到的所有li标签的第二个li标签
    • $(“li”).first() //找到的所有li标签的第一个li标签
    • $(“ul li”).hasclass(“test”) //找到的标签中的class中含有test的标签

    2.2.2. 查找筛选器

    • $(“div”).children(“.test”) //div标签中的儿子辈标签中class属性中有test的标签
    • $(“div”).find(“.test”) //div标签中的子孙辈标签中class属性中有test的标签
    • $(“.test”).next() //找到的标签的下一个标签
    • $(“.test”).nextAll() //找到的标签的下面所有兄弟标签
    • $(“.test”).nextUntil() //找到的标签的下面直到util标签为止的所有标签，util里面的标签不包含
    • $(“div”).prev() //找到的标签的上一个标签
    • $(“div”).prevAll() //找到的标签的上面所有兄弟
    • $(“div”).prevUntil() //找到的标签的上面直到util标签为止的所有标签，util里面的标签不包含
    • $(“.test”).parent() //找到的标签的父类标签
    • $(“.test”).parents() //找到的标签的祖宗标签，一直找到根部
    • $(“.test”).parentUntil() //找到的标签的祖宗标签，直到某个祖宗为止，util里面的标签不包含
    • $(“div”).siblings() //找到的标签的所有相邻同级标签（兄弟标签），不包含自己

    2.3. 左侧菜单实现

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    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>left_menu</title>
     
        <script src="js/jquery-2.2.3.js"></script>
        <script>
              function show(self){
    //              console.log($(self).text())
                  $(self).next().removeClass("hide")
                  $(self).parent().siblings().children(".con").addClass("hide")
     
              }
        </script>
        <style>
              .menu{
                  height: 500px;
                   30%;
                  
                  float: left;
              }
              .content{
                  height: 500px;
                   70%;
                  
                  float: left;
              }
             .title{
                 line-height: 50px;
                 
                 color: forestgreen;}
     
     
             .hide{
                 display: none;
             }
     
     
        </style>
    </head>
    <body>
     
    <div class="outer">
        <div class="menu">
            <div class="item">
                <div class="title" onclick="show(this);">菜单一</div>
                <div class="con">
                    <div>111</div>
                    <div>111</div>
                    <div>111</div>
                </div>
            </div>
            <div class="item">
                <div class="title" onclick="show(this);">菜单二</div>
                <div class="con hide">
                    <div>111</div>
                    <div>111</div>
                    <div>111</div>
                </div>
            </div>
            <div class="item">
                <div class="title" onclick="show(this);">菜单三</div>
                <div class="con hide">
                    <div>111</div>
                    <div>111</div>
                    <div>111</div>
                </div>
            </div>
     
        </div>
        <div class="content"></div>
     
    </div>
     
    </body>
    </html>

    　　

    2.4. 实例tab切换

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    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>tab</title>
        <script src="js/jquery-2.2.3.js"></script>
        <script>
               function tab(self){
                   var index=$(self).attr("xxx")
                   $("#"+index).removeClass("hide").siblings().addClass("hide")
                   $(self).addClass("current").siblings().removeClass("current")
     
               }
        </script>
        <style>
            *{
                margin: 0px;
                padding: 0px;
            }
            .tab_outer{
                margin: 0px auto;
                 60%;
            }
            .menu{
                
                /*border: 1px solid red;*/
                line-height: 40px;
            }
            .menu li{
                display: inline-block;
            }
            .menu a{
                border-right: 1px solid red;
                padding: 11px;
            }
            .content{
                
                border: 1px solid green;
                height: 300px;
            }
            .hide{
                display: none;
            }
     
            .current{
                
                color: yellow;
                border-top: solid 2px rebeccapurple;
            }
        </style>
    </head>
    <body>
          <div class="tab_outer">
              <ul class="menu">
                  <li xxx="c1" class="current" onclick="tab(this);">菜单一</li>
                  <li xxx="c2" onclick="tab(this);">菜单二</li>
                  <li xxx="c3" onclick="tab(this);">菜单三</li>
              </ul>
              <div class="content">
                  <div id="c1">内容一</div>
                  <div id="c2" class="hide">内容二</div>
                  <div id="c3" class="hide">内容三</div>
              </div>
     
          </div>
    </body>
    </html>

    　　

    3. 操作元素

    3.1 属性操作

    • $(“p”).text() //p标签的内容text字符串
    • $(“p”).html() //p标签的内部html内容，和innerhtml一样
    • $(“:checkbox”).val() //拿到checkbox的value
    • $(“.test”).attr(“alex”) //拿到class中有test的标签的属性alex的值
    • $(“.test”).attr(“alex”,”sb”) //给class中有test的标签设置属性alex的值为sb。。。
    • $(“.test”).attr(“checked”,”checked”) //给class中有test的标签设置checked，打上勾
    • $(“:checkbox”).removeAttr(“checked”) //移除打上的勾
    • $(“.test”).prop(“checked”,true) //给class中含有test的标签的checked属性设置为true，打上勾
    • $(“.test”).addClass(“hide”) //添加class名为hide

    3.2 选择框正反选

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    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script src="js/jquery-2.2.3.js"></script>
        <script>
     
                 function selectall(){
     
                     $("table :checkbox").prop("checked",true)
                 }
                 function che(){
     
                     $("table :checkbox").prop("checked",false)
                 }
     
                 function reverse(){
     
     
    //                 var idlist=$("table :checkbox")
    //                 for(var i=0;i<idlist.length;i++){
    //                     var element=idlist[i];
    //
    //                     var ischecked=$(element).prop("checked")
    //                     if (ischecked){
    //                         $(element).prop("checked",false)
    //                     }
    //                     else {
    //                         $(element).prop("checked",true)
    //                     }
    //
    //                 }
     
     
     
                     $("table :checkbox").each(function(){
                         if ($(this).prop("checked")){
                             $(this).prop("checked",false)
                         }
                         else {
                             $(this).prop("checked",true)
                         }
     
                     });
     
     
     
    //                 li=[10,20,30,40]
    ////                 dic={name:"yuan",sex:"male"}
    //                 $.each(li,function(i,x){
    //                     console.log(i,x)
    //                 })
     
                 }
     
        </script>
    </head>
    <body>
     
         <button onclick="selectall();">全选</button>
         <button onclick="che();">取消</button>
         <button onclick="reverse();">反选</button>
     
         <table border="1">
             <tr>
                 <td><input type="checkbox"></td>
                 <td>111</td>
             </tr>
             <tr>
                 <td><input type="checkbox"></td>
                 <td>222</td>
             </tr>
             <tr>
                 <td><input type="checkbox"></td>
                 <td>333</td>
             </tr>
             <tr>
                 <td><input type="checkbox"></td>
                 <td>444</td>
             </tr>
         </table>
     
     
     
    </body>
    </html>

    　　

    3.3 模态对话框

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    <!DOCTYPE html>
    <html>
        <head>
            <meta charset="utf-8" />
            <title>批量编辑</title>
            <!--<link rel="stylesheet" href="css/mycss.css" />-->
            <style>
                *{
        margin: 0;
        padding: 0;
    }
    body {
      font-family: 'Open Sans', sans-serif;
      font-weight: 300;
      line-height: 1.42em;
      color:rebeccapurple;
      
    }
     
    h1 {
      font-size:3em;
      font-weight: 300;
      line-height:1em;
      text-align: center;
      color: #4DC3FA;
    }
    .blue {
        color: #185875;
    }
    .yellow {
        color: #FFF842;
        }
     
    /*!*弹出层罩子*!*/
    #full {
        
        left:0;
        opacity:0.7;
        position:absolute;
        top:0;
        filter:alpha(opacity=30);
    }
     
    .modified {
        
        border:3px solid whitesmoke;
        height:400px;
        left:50%;
        margin:-200px 0 0 -200px;
        padding:1px;
        position:fixed;
        /*position:absolute;*/
        top:50%;
        400px;
        display:none;
    }
    li {
        list-style: none;
        margin: 20px 0 0 50px;
        color: #FB667A;
    }
    input[type="text"] {
      padding: 10px;
      border: solid 1px #dcdcdc;
      /*transition: box-shadow 3s, border 3s;*/
     
    }
     
    .iputbutton {
        margin: 60px 0 0 50px;
        color: whitesmoke;
        
        height: 30px;
         100px;
        border: 1px dashed;
     
    }
     
     
     
     
    .container th h1 {
        font-weight: bold;
        font-size: 1em;
          text-align: left;
          color: #185875;
    }
     
    .container td {
        font-weight: normal;
        font-size: 1em;
    }
     
    .container {
     
         80%;
        margin: 0 auto;
     
    }
     
    .container td, .container th {
        padding-bottom: 2%;
        padding-top: 2%;
          padding-left:2%;
    }
     
    /*单数行*/
    .container tr:first-child {
        
    }
     
    /*偶数行*/
    .container tr:not(first-child){
          
    }
     
    .container th {
        
    }
     
    .container td:last-child {
        color: #FB667A;
    }
    /*鼠标进过行*/
    .container tr:hover {
       
    }
    /*鼠标进过列*/
    .container td:hover {
      
      color: #403E10;
      font-weight: bold;
      transform: translate3d(5px, -5px, 0);
    }
     
     
     
     
     
            </style>
            <script src="jquery-2.2.3.js"></script>
            <script>
                //点击【编辑】显示
     
    $(function () {
     
     
        $("table[name=host] tr:gt(0) td:last-child").click(function (event) {
     
            alert("234");
    //        $("#full").css({height:"100%","100%"});
     
            $(".modified").data('current-edit-obj', $(this));
     
            $(".modified,#full").show();
     
            var hostname = $(this).siblings("td[name=hostname]").text();
            $(".modified #hostname").val(hostname);
            var ip = $(this).siblings("td[name=ip]").text();
            $(".modified #ip").val(ip);
            var port = $(this).siblings("td[name=port]").text();
            $(".modified #port").val(port);
        });
        //取消编辑
        $(".modified #cancel").bind("click", function () {
            $(".modified,#full").hide();
        });
     
    //    确定修改
        $(".modified #ok").bind("click", function (event) {
            var check_status = true;
            var ths = $(".modified").data('current-edit-obj');
            var hostname = $(".modified #hostname").val().trim();
            var ip = $(".modified #ip").val().trim();
            var port = $(".modified #port").val().trim();
            var port = parseInt(port);
            console.log(port);
            //        端口为空设置为22
            if (isNaN(port)) {
                alert("您没有设置正常的SSH端口号，将采用默认22号端口");
                var port = 22;
            }else if ( port > 65535) {
            //            如果端口不是一个数字 或者端口大于65535
                var check_status = false;
                $(".modified #port").css("border-color","red");
                alert("端口号超过范围!")
            };
            // 主机和ip不能是空
            if ( hostname == ""){
                var check_status = false;
                $(".modified #hostname").css("border-color","red");
            }else if (ip == "") {
                var check_status = false;
                $(".modified #ip").css("border-color","red");
            };
            if (check_status == false){
                return false;
            }else{
                //$(this).css("height","60px")   为什么不用$(this),而用$()
                $(ths).siblings("td[name=hostname]").text(hostname);
                $(ths).siblings("td[name=ip]").text(ip);
                $(ths).siblings("td[name=port]").text(port);
                $(".modified,#full").hide();
            };
     
        });
     
    });
     
            </script>
        </head>
        <body>
            <h1>
                <span class="blue"><</span>Homework1<span class="blue">></span> <span class="yellow">HostList</span>
            </h1>
            <div id="full">
                <div class="modified">
                    <li>主机名：<input id="hostname" type="text" value="" />*</li>
                    <li>ip地址：<input id="ip" type="text" value="" />*</li>
                    <li>端口号：<input id="port" type="text" value="" />[0-65535]</li>
                        <div id="useraction">
                         <input class="iputbutton" type="button" name="确定" id="ok" value="确定"/>
                        <input class="iputbutton" type="button" name="取消" id="cancel" value="取消"/>
                        </div>
                </div>
            </div>
            <table class="container" name="host">
                <tr>
                    <th><h1>主机名</h1></th>
                    <th><h1>IP地址</h1></th>
                    <th><h1>端口</h1></th>
                    <th><h1>操作</h1></th>
     
                </tr>
                <tr>
                    <td name="hostname">web01</td>
                    <td name="ip">192.168.2.1</td>
                    <td name="port">22</td>
                    <td>编辑 </td>
                </tr>
                <tr>
                    <td name="hostname">web02</td>
                    <td name="ip">192.168.2.2</td>
                    <td name="port">223</td>
                    <td>编辑 </td>
                </tr>
                <tr>
                    <td name="hostname">web03</td>
                    <td name="ip">192.168.2.3</td>
                    <td name="port">232</td>
                    <td>编辑 </td>
                </tr>
                <tr>
                    <td name="hostname">web04</td>
                    <td name="ip">192.168.2.4</td>
                    <td name="port">232</td>
                    <td>编辑 </td>
                </tr>
            </table>
     
     
        </body>
    </html>

    　　

    3.4 CSS操作

    • (样式) css(“{color:’red’,backgroud:’blue’}”)
    • (位置) offset() position() scrollTop() scrollLeft()
    • (尺寸) height() width()

    3.5 返回顶部

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    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script src="js/jquery-2.2.3.js"></script>
        <script>
     
     
              window.onscroll=function(){
     
                  var current=$(window).scrollTop();
                  console.log(current)
                  if (current>100){
     
                      $(".returnTop").removeClass("hide")
                  }
                  else {
                  $(".returnTop").addClass("hide")
              }
              }
     
     
               function returnTop(){
    //               $(".div1").scrollTop(0);
     
                   $(window).scrollTop(0)
               }
     
     
     
     
        </script>
        <style>
            body{
                margin: 0px;
            }
            .returnTop{
                height: 60px;
                 100px;
                
                position: fixed;
                right: 0;
                bottom: 0;
                color: greenyellow;
                line-height: 60px;
                text-align: center;
            }
            .div1{
                
                font-size: 5px;
                overflow: auto;
                 500px;
            }
            .div2{
                
            }
            .div3{
                
            }
            .div{
                height: 300px;
            }
            .hide{
                display: none;
            }
        </style>
    </head>
    <body>
         <div class="div1 div">
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
             <p>hello</p>
     
         </div>
         <div class="div2 div"></div>
         <div class="div3 div"></div>
         <div class="returnTop hide" onclick="returnTop();">返回顶部</div>
    </body>
    </html>

    　　

    3.6 滚动菜单
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    <!DOCTYPE html>
    <html>
    <head lang="en">
        <meta charset="UTF-8">
        <title></title>
        <style>
     
            body{
                margin: 0px;
            }
            img {
                border: 0;
            }
            ul{
                padding: 0;
                margin: 0;
                list-style: none;
            }
            .clearfix:after {
                content: ".";
                display: block;
                height: 0;
                clear: both;
                visibility: hidden;
            }
     
            .wrap{
                 980px;
                margin: 0 auto;
            }
     
            .pg-header{
                
                -webkit-box-shadow: 0 2px 5px rgba(0,0,0,.2);
                -moz-box-shadow: 0 2px 5px rgba(0,0,0,.2);
                box-shadow: 0 2px 5px rgba(0,0,0,.2);
            }
            .pg-header .logo{
                float: left;
                padding:5px 10px 5px 0px;
            }
            .pg-header .logo img{
                vertical-align: middle;
                 110px;
                height: 40px;
     
            }
            .pg-header .nav{
                line-height: 50px;
            }
            .pg-header .nav ul li{
                float: left;
            }
            .pg-header .nav ul li a{
                display: block;
                color: #ccc;
                padding: 0 20px;
                text-decoration: none;
                font-size: 14px;
            }
            .pg-header .nav ul li a:hover{
                color: #fff;
                
            }
            .pg-body{
     
            }
            .pg-body .catalog{
                position: absolute;
                top:60px;
                 200px;
                
                bottom: 0px;
            }
            .pg-body .catalog.fixed{
                position: fixed;
                top:10px;
            }
     
            .pg-body .catalog .catalog-item.active{
                color: #fff;
                
            }
     
            .pg-body .content{
                position: absolute;
                top:60px;
                 700px;
                margin-left: 210px;
                
                overflow: auto;
            }
            .pg-body .content .section{
                height: 500px;
            }
        </style>
    </head>
    <body>
     
        <div class="pg-header">
            <div class="wrap clearfix">
                <div class="logo">
                    <a href="#">
                        <img src="images/3.jpg">
                    </a>
                </div>
                <div class="nav">
                    <ul>
                        <li>
                            <a  href="#">首页</a>
                        </li>
                        <li>
                            <a  href="#">功能一</a>
                        </li>
                        <li>
                            <a  href="#">功能二</a>
                        </li>
                    </ul>
                </div>
     
            </div>
        </div>
        <div class="pg-body">
            <div class="wrap">
                <div class="catalog">
                    <div class="catalog-item" auto-to="function1"><a>第1张</a></div>
                    <div class="catalog-item" auto-to="function2"><a>第2张</a></div>
                    <div class="catalog-item" auto-to="function3"><a>第3张</a></div>
                </div>
                <div class="content">
     
                    <div menu="function1" class="section">
                        <h1>第一章</h1>
                    </div>
                    <div menu="function2" class="section">
                        <h1>第二章</h1>
                    </div>
                    <div menu="function3" class="section">
                        <h1>第三章</h1>
                    </div>
                </div>
            </div>
        </div>
     
        <script type="text/javascript" src="js/jquery-2.2.3.js"></script>
        <script type="text/javascript">
     
     
         window.onscroll=function(){
             var ws=$(window).scrollTop()
             if (ws>50){
                 $(".catalog").addClass("fixed")
             }
             else {
                 $(".catalog").removeClass("fixed")
             }
             $(".content").children("").each(function(){
     
              var offtop=$(this).offset().top;
    //             console.log(offtop)
                 var total=$(this).height()+offtop;
     
                 if (ws>offtop && ws<total){
     
                     if($(window).height()+$(window).scrollTop()==$(document).height()){
                         var index=$(".catalog").children(" :last").css("fontSize","40px").siblings().css("fontSize","12px")
                         console.log(index)
                     target='div[auto-to="'+index+'"]';
                     $(".catalog").children(target).css("fontSize","40px").siblings().css("fontSize","12px")
     
                     }
                     else{
                          var index=$(this).attr("menu");
                     target='div[auto-to="'+index+'"]';
                     $(".catalog").children(target).css("fontSize","40px").siblings().css("fontSize","12px")
                     }
     
     
                 }
     
             })
     
         }
     
        </script>
     
     
    </body>
    </html>

    　　

    3.7 文档处理

    内部插入

    • $(“#c1”).append(“hello“) //在选中元素的子元素中追加一个元素
    • $(“p”).appendTo(“div”) //将一个元素追加到选中元素的子元素中
    • prepend() //在选中元素的子元素中第一个位置插入一个元素
    • prependTo() //将某个元素插入到选中元素中的第一个子元素位置

    外部插入

    • before() //在选中元素上面插入某个元素
    • insertBefore() //将某个元素插入到选中元素的上面
    • after() //在选中元素下面插入某个元素
    • insertAfter() //将某个元素插入到选中元素的下面
    • replaceWith() //将选中的标签替换成新的dom标签
    • remove() //删除一个标签（彻底删除）
    • empty() //清空某个标签下的所有子标签
    • clone() //克隆某个标签，括号中有个参数设置为true时代表将标签绑定的事件也一起克隆

    3.8 clone方法的应用

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    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
     
    </head>
    <body>
                <div class="outer">
                    <div class="condition">
     
                            <div class="icons" style="display:inline-block">
                                <a onclick="add(this);"><button>+</button></a>
                            </div>
     
                            <div class="input" style="display:inline-block">
                                <input type="checkbox">
                                <input type="text" value="alex">
                            </div>
                    </div>
                </div>
     
    <script src="js/jquery-2.2.3.js"></script>
        <script>
     
                function add(self){
                    var $duplicate = $(self).parent().parent().clone();
                    $duplicate.find('a[onclick="add(this);"]').attr('onclick',"removed(this)").children("").text("-");
                    $duplicate.appendTo($(self).parent().parent().parent());
     
                }
               function removed(self){
     
                   $(self).parent().parent().remove()
     
               }
     
        </script>
    </body>
    </html>

    　　

    3.9 事件

    • $(document).ready(function(){}) —————-> $(function(){}) //文档加载完成
    • $(“p”).click(function(){}) //单击事件
    • $(“p”).bind(“click”,function(){}) //绑定事件（将要被废弃，已经有on事件可以替代）
    • $(“ul”).delegate(“li”,”click”,function(){}) //jquery2版本中用它动态绑定子元素事件，在jquery3中用on替代
    • on(events,[selector],[data],fn) //可以动态绑定子元素的某个事件，当插入一个子元素时，该事件会被绑定上

    4 示例

    4.1 拖动面板

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    <!DOCTYPE html>
    <html>
    <head lang="en">
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <div style="border: 1px solid #ddd; 600px;position: absolute;">
            <div id="title" style="height: 40px;color: white;">
                标题
            </div>
            <div style="height: 300px;">
                内容
            </div>
        </div>
    <script type="text/javascript" src="jquery-2.2.3.js"></script>
    <script>
        $(function(){
            // 页面加载完成之后自动执行
            $('#title').mouseover(function(){
                $(this).css('cursor','move');
            }).mousedown(function(e){
                //console.log($(this).offset());
                var _event = e || window.event;
                // 原始鼠标横纵坐标位置
                var ord_x = _event.clientX;
                var ord_y = _event.clientY;
     
                var parent_left = $(this).parent().offset().left;
                var parent_top = $(this).parent().offset().top;
     
                $(this).bind('mousemove', function(e){
                    var _new_event = e || window.event;
                    var new_x = _new_event.clientX;
                    var new_y = _new_event.clientY;
     
                    var x = parent_left + (new_x - ord_x);
                    var y = parent_top + (new_y - ord_y);
     
                    $(this).parent().css('left',x+'px');
                    $(this).parent().css('top',y+'px');
     
                })
            }).mouseup(function(){
                $(this).unbind('mousemove');
            });
        })
    </script>
    </body>
    </html>

    　　

    4.2 放大镜

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    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>bigger</title>
        <style>
            *{
                margin: 0;
                padding:0;
            }
            .outer{
                height: 350px;
                 350px;
                border: dashed 5px cornflowerblue;
            }
            .outer .small_box{
                position: relative;
            }
            .outer .small_box .float{
                height: 175px;
                 175px;
                
                opacity: 0.4;
                fill-opacity: 0.4;
                position: absolute;
                display: none;
     
            }
     
            .outer .big_box{
                height: 400px;
                 400px;
                overflow: hidden;
                position:absolute;
                left: 360px;
                top: 0px;
                z-index: 1;
                border: 5px solid rebeccapurple;
                display: none;
     
     
            }
            .outer .big_box img{
                position: absolute;
                z-index: 5;
            }
     
     
        </style>
    </head>
    <body>
     
     
            <div class="outer">
                <div class="small_box">
                    <div class="float"></div>
                    <img src="small.jpg">
     
                </div>
                <div class="big_box">
                    <img src="big.jpg">
                </div>
     
            </div>
     
     
    <script src="js/jquery-2.2.3.js"></script>
    <script>
     
        $(function(){
     
              $(".small_box").mouseover(function(){
     
                  $(".float").css("display","block");
                  $(".big_box").css("display","block")
     
              })
              $(".small_box").mouseout(function(){
     
                  $(".float").css("display","none");
                  $(".big_box").css("display","none")
     
              })
     
     
     
              $(".small_box").mousemove(function(e){
     
                  var _event=e || window.event;
     
                  var float_width=$(".float").width();
                  var float_height=$(".float").height();
     
                  console.log(float_height,float_width);
     
                  var float_height_half=float_height/2;
                  var float_width_half=float_width/2;
                  console.log(float_height_half,float_width_half);
     
     
                   var small_box_width=$(".small_box").height();
                   var small_box_height=$(".small_box").width();
     
     
     
    //  鼠标点距离左边界的长度与float应该与左边界的距离差半个float的width,height同理
                  var mouse_left=_event.clientX-float_width_half;
                  var mouse_top=_event.clientY-float_height_half;
     
                  if(mouse_left<0){
                      mouse_left=0
                  }else if (mouse_left>small_box_width-float_width){
                      mouse_left=small_box_width-float_width
                  }
     
     
                  if(mouse_top<0){
                      mouse_top=0
                  }else if (mouse_top>small_box_height-float_height){
                      mouse_top=small_box_height-float_height
                  }
     
                   $(".float").css("left",mouse_left+"px");
                   $(".float").css("top",mouse_top+"px")
     
                   var percentX=($(".big_box img").width()-$(".big_box").width())/ (small_box_width-float_width);
                   var percentY=($(".big_box img").height()-$(".big_box").height())/(small_box_height-float_height);
     
                  console.log(percentX,percentY)
     
                   $(".big_box img").css("left", -percentX*mouse_left+"px")
                   $(".big_box img").css("top", -percentY*mouse_top+"px")
     
     
              })
     
     
        })
     
     
    </script>
    </body>
    </html>

    　　

    4.3 动画效果
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    隐藏与显示
     
    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script src="js/jquery-2.2.3.js"></script>
        <script>
        /**
     * Created by yuan on 16/5/5.
     */
     
    $(document).ready(function(){
        $("#hide").click(function(){
            $("p").hide(1000);
        });
        $("#show").click(function(){
            $("p").show(1000);
        });
     
    //用于切换被选元素的 hide() 与 show() 方法。
        $("#toggle").click(function(){
            $("p").toggle();
        })
     
     for (var i= 0;i<7;i++){
    //            颠倒了常规的$(A).append(B)的操作，即不是把B追加到A中，而是把A追加到B中。
                $("<div>").appendTo(document.body);
            }
            $("div").click(function(){
              $(this).hide(2000);
            });
    });
     
        </script>
        <link type="text/css" rel="stylesheet" href="style.css">
    </head>
    <body>
        <!--1 隐藏与显示-->
        <!--2 淡入淡出-->
        <!--3 滑动-->
        <!--4 效果-回调:每一个动画执行完毕之后所能执行的函数方法或者所能做的一件事-->
     
     
        <p>hello</p>
        <button id="hide">隐藏</button>
        <button id="show">显示</button>
        <button id="toggle">隐藏/显示</button>
     
    </body>
    </html>
    淡入淡出
     
    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script src="js/jquery-2.2.3.js"></script>
        <script>
        $(document).ready(function(){
       $("#in").click(function(){
           $("#id1").fadeIn(1000);
           $("#id2").fadeIn(1000);
           $("#id3").fadeIn(1000);
     
       });
        $("#out").click(function(){
           $("#id1").fadeOut(1000);
           $("#id2").fadeOut(1000);
           $("#id3").fadeOut(1000);
     
       });
        $("#toggle").click(function(){
           $("#id1").fadeToggle(1000);
           $("#id2").fadeToggle(1000);
           $("#id3").fadeToggle(1000);
     
       });
        $("#fadeto").click(function(){
           $("#id1").fadeTo(1000,0.4);
           $("#id2").fadeTo(1000,0.5);
           $("#id3").fadeTo(1000,0);
     
       });
    });
     
     
     
        </script>
     
    </head>
    <body>
          <button id="in">fadein</button>
          <button id="out">fadeout</button>
          <button id="toggle">fadetoggle</button>
          <button id="fadeto">fadeto</button>
     
          <div id="id1" style="display:none; 80px;height: 80px;</div>
          <div id="id2" style="display:none; 80px;height: 80px;</div>
          <div id="id3" style="display:none; 80px;height: 80px;</div>
     
    </body>
    </html>
    滑动
     
    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script src="js/jquery-2.2.3.js"></script>
        <script>
        $(document).ready(function(){
         $("#flipshow").click(function(){
             $("#content").slideDown(1000);
         });
          $("#fliphide").click(function(){
             $("#content").slideUp(1000);
         });
          $("#toggle").click(function(){
             $("#content").slideToggle(1000);
         })
      });
        </script>
        <style>
            #flipshow,#content,#fliphide,#toggle{
                padding: 5px;
                text-align: center;
                
                border:solid 1px red;
     
            }
            #content{
                padding: 50px;
                display: none;
            }
        </style>
    </head>
    <body>
     
        <div id="flipshow">出现</div>
        <div id="fliphide">隐藏</div>
        <div id="toggle">toggle</div>
     
        <div id="content">helloworld</div>
     
    </body>
    </html>
    回调函数
     
    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script src="js/jquery-2.2.3.js"></script>
        <script>
     
        $(document).ready(function(){
       $("button").click(function(){
           $("p").hide(1000,function(){
               alert('动画结束')
           })
     
    //       $("p").css('color','red').slideUp(1000).slideDown(2000)
       })
    });
        </script>
    </head>
    <body>
      <button>隐藏</button>
      <p>helloworld helloworld helloworld</p>
     
    </body>
    </html>

    　　

    京东轮播图

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    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script src="js/jquery-2.2.3.js"></script>
        <script src="index.js"></script>
        <script>
            /**
     * Created by yuan on 2016/5/6.
     */
     
    //手动轮播效果
    $(function(){
        var size=$(".img li").size()
        for (var i= 1;i<=size;i++){
            var li="<li>"+i+"</li>"
            $(".num").append(li);
        }
     
     
        //$(".img li").eq(0).show();
        $(".num li").eq(0).addClass("active");
        $(".num li").mouseover(function(){
           $(this).addClass("active").siblings().removeClass("active");
           var index=$(this).index();
           i=index;
           $(".img li").eq(index).fadeIn(1000).siblings().fadeOut(1000);
       });
     
     
    i=0;
    var t=setInterval(move,1500)
     
        function move(){
        i++;
        if(i==size){
            i=0;
        }
        $(".num li").eq(i).addClass("active").siblings().removeClass("active");
        $(".img li").eq(i).stop().fadeIn(1000).siblings().stop().fadeOut(1000);
    };
     
        function moveL(){
        i--;
        if(i==-1){
            i=size-1;
        }
        $(".num li").eq(i).addClass("active").siblings().removeClass("active");
        $(".img li").eq(i).stop().fadeIn(1000).siblings().stop().fadeOut(1000);
    }
     
        $(".out").hover(function(){
            clearInterval(t);
        },function(){
            t=setInterval(move,1500);
        });
     
        $(".out .right").click(function(){
            move()
        });
        $(".out .left").click(function(){
           moveL()
        })
     
    });
        </script>
        <link type="text/css" rel="stylesheet" href="style.css">
        <style>
            *{
        margin: 0;
        padding: 0;
    }
    ul{
        list-style: none;
    }
     
    .out{
         730px;
        height: 454px;
        /*border: 8px solid mediumvioletred;*/
        margin: 50px auto;
        position: relative;
    }
     
    .out .img li{
        position: absolute;
        left: 0;
        top: 0;
    }
     
    .out .num{
        position: absolute;
        left:0;
        bottom: 20px;
        text-align: center;
        font-size: 0;
         100%;
    }
     
     
    .out .btn{
        position: absolute;
        top:50%;
        margin-top: -30px;
         30px;
        height: 60px;
        
        color: black;
        text-align: center;
        line-height: 60px;
        font-size: 40px;
        display: none;
     
     
     
     
     
    }
     
    .out .num li{
         20px;
        height: 20px;
        
        color: #fff;
        text-align: center;
        line-height: 20px;
        border-radius: 50%;
        display: inline;
        font-size: 18px;
        margin: 0 10px;
        cursor: pointer;
    }
    .out .num li.active{
        
    }
     
     
    .out .left{
        left: 0;
    }
    .out .right{
        right: 0;
    }
     
    .out:hover .btn{
        display: block;
    }
        </style>
    </head>
    <body>
         <div class="out">
             <ul class="img">
                 <li><a href="#"><img src="images/1.jpg" alt=""></a></li>
                 <li><a href="#"><img src="images/2.jpg" alt=""></a></li>
                 <li><a href="#"><img src="images/3.jpg" alt=""></a></li>
                 <li><a href="#"><img src="images/4.jpg" alt=""></a></li>
                 <li><a href="#"><img src="images/5.jpg" alt=""></a></li>
             </ul>
     
             <ul class="num">
                 <!--<li class="active">1</li>-->
                 <!--<li>2</li>-->
                 <!--<li>3</li>-->
                 <!--<li>4</li>-->
                 <!--<li>5</li>-->
             </ul>
     
             <div class="left btn"><</div>
             <div class="right btn">></div>
     
         </div>
     
    </body>
    </html>

    　　

    4.4 扩展
    • jquery.extend({}) //扩展jquery对象的方法
    • jquery.fn.extend({}) //扩展jQuery中dom中的标签对象的方法

    商城菜单

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    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <meta name="viewport" content="width=device-width">
        <meta http-equiv="X-UA-Compatible" content="IE=8">
        <title>购物商城</title>
        <style>
     
    *{
        margin: 0;
        padding: 0;
    }
    .hide{
        display:none;
    }
     
     
    .header-nav {
        height: 39px;
        background: #c9033b;
    }
    .header-nav .bg{
        background: #c9033b;
    }
     
    .header-nav .nav-allgoods .menuEvent {
        display: block;
        height: 39px;
        line-height: 39px;
        text-decoration: none;
        color: #fff;
        text-align: center;
        font-weight: bold;
        font-family: 微软雅黑;
        color: #fff;
         100px;
    }
    .header-nav .nav-allgoods .menuEvent .catName {
        height: 39px;
        line-height: 39px;
        font-size: 15px;
    }
     
    .header-nav .nav-allmenu a {
        display: inline-block;
        height: 39px;
        vertical-align: top;
        padding: 0 15px;
        text-decoration: none;
        color: #fff;
        float: left;
    }
     
    .header-menu a{
        color:#656565;
    }
     
    .header-menu .menu-catagory{
        position: absolute;
        
        border-left:1px solid #fff;
        height: 316px;
         230px;
         z-index: 4;
         float: left;
    }
    .header-menu .menu-catagory .catagory {
        border-left:4px solid #fff;
        height: 104px;
        border-bottom: solid 1px #eaeaea;
    }
    .header-menu .menu-catagory .catagory:hover {
        height: 102px;
        border-left:4px solid #c9033b;
        border-bottom: solid 1px #bcbcbc;
        border-top: solid 1px #bcbcbc;
    }
     
    .header-menu .menu-content .item{
        margin-left:230px;
        position:absolute;
        
        height:314px;
        500px;
        z-index:4;
        float:left;
        border: solid 1px #bcbcbc;
        border-left:0;
        box-shadow: 1px 1px 5px #999;
    }
     
        </style>
    </head>
    <body>
     
    <div class="pg-header">
     
        <div class="header-nav">
            <div class="container narrow bg">
                <div class="nav-allgoods left">
                    <a id="all_menu_catagory" href="#" class="menuEvent">
                        <strong class="catName">全部商品分类</strong>
                        <span class="arrow" style="display: inline-block;vertical-align: top;"></span>
                    </a>
                </div>
            </div>
        </div>
        <div class="header-menu">
            <div class="container narrow hide">
                <div id="nav_all_menu" class="menu-catagory">
                    <div class="catagory" float-content="one">
                        <div class="title">家电</div>
                        <div class="body">
                            <a href="#">空调</a>
                        </div>
                    </div>
                    <div class="catagory" float-content="two">
                        <div class="title">床上用品</div>
                        <div class="body">
                            <a href="http://www.baidu.com">床单</a>
                        </div>
                    </div>
                    <div class="catagory" float-content="three">
                        <div class="title">水果</div>
                        <div class="body">
                            <a href="#">橘子</a>
                        </div>
                    </div>
                </div>
     
                <div id="nav_all_content" class="menu-content">
                    <div class="item hide" float-id="one">
     
                        <dl>
                            <dt><a href="#" class="red">厨房用品</a></dt>
                            <dd>
                                <span>| <a href="#" target="_blank" title="勺子">勺子</a> </span>
                            </dd>
                        </dl>
                        <dl>
                            <dt><a href="#" class="red">厨房用品</a></dt>
                            <dd>
                                <span>| <a href="#" target="_blank" title="菜刀">菜刀</a> </span>
     
                            </dd>
                        </dl>
                        <dl>
                            <dt><a href="#" class="red">厨房用品</a></dt>
                            <dd>
                                <span>| <a href="#">菜板</a> </span>
                            </dd>
                        </dl>
                        <dl>
                            <dt><a href="#" class="red">厨房用品</a></dt>
                            <dd>
                                <span>| <a href="#" target="_blank" title="碗">碗</a> </span>
     
                            </dd>
                        </dl>
     
                    </div>
                    <div class="item hide" float-id="two">
                        <dl>
                            <dt><a href="#" class="red">厨房用品</a></dt>
                            <dd>
                                <span>| <a href="#" target="_blank" title="">角阀</a> </span>
     
                            </dd>
                        </dl>
                        <dl>
                            <dt><a href="#" class="red">厨房用品</a></dt>
                            <dd>
                                <span>| <a href="#" target="_blank" title="角阀">角阀</a> </span>
     
                            </dd>
                        </dl>
                        <dl>
                            <dt><a href="#" class="red">厨房用品</a></dt>
                            <dd>
                                <span>| <a href="#" target="_blank" title="角阀">角阀</a> </span>
     
                            </dd>
                        </dl>
     
                    </div>
                    <div class="item hide" float-id="three">
                        <dl>
                            <dt><a href="#" class="red">厨房用品3</a></dt>
                            <dd>
                                <span>| <a href="#" target="_blank" title="角阀">角阀3</a> </span>
     
                            </dd>
                        </dl>
                        <dl>
                            <dt><a href="#" class="red">厨房用品3</a></dt>
                            <dd>
                                <span>| <a href="http://www.meilele.com/category-jiaofa/" target="_blank" title="角阀">角阀3</a> </span>
     
                            </dd>
                        </dl>
                    </div>
                </div>
            </div>
        </div>
     
    </div>
     
     
    <script src="js/jquery-2.2.3.js"></script>
     
    <script type="text/javascript">
        $(document).ready(function () {
     
            Change_Menu('#all_menu_catagory','#nav_all_menu', '#nav_all_content');
     
        });
     
     
     
        function Change_Menu(all_menu_catagory,menu, content) {
            $all_menu_catagory = $(all_menu_catagory);
            $menu = $(menu);
            $content = $(content);
     
            $all_menu_catagory.bind("mouseover", function () {
                $menu.parent().removeClass('hide');
            });
            $all_menu_catagory.bind("mouseout", function () {
                $menu.parent().addClass('hide');
            });
     
            $menu.children().bind("mouseover", function () {
                $menu.parent().removeClass('hide');
                $item_content = $content.find('div[float-id="' + $(this).attr("float-content") + '"]');
                $item_content.removeClass('hide').siblings().addClass('hide');
            });
            $menu.bind("mouseout", function () {
                $content.children().addClass('hide');
                $menu.parent().addClass('hide');
            });
            $content.children().bind("mouseover", function () {
     
                $menu.parent().removeClass('hide');
                $(this).removeClass('hide');
            });
            $content.children().bind("mouseout", function () {
     
                $(this).addClass('hide');
                $menu.parent().addClass('hide');
            });
        }
    </script>
     
     
    </body>
    </html>

    　　

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    <!DOCTYPE html>
    <html>
    <head lang="en">
        <meta charset="UTF-8">
        <title></title>
        <style>
            .edit-mode{
                
                padding: 8px;
                text-decoration: none;
                color: white;
            }
            .editing{
                
            }
        </style>
    </head>
    <body>
     
        <div style="padding: 20px">
            <input type="button" onclick="CheckAll('#edit_mode', '#tb1');" value="全选" />
            <input type="button" onclick="CheckReverse('#edit_mode', '#tb1');" value="反选" />
            <input type="button" onclick="CheckCancel('#edit_mode', '#tb1');" value="取消" />
     
            <a id="edit_mode" class="edit-mode" href="javascript:void(0);"  onclick="EditMode(this, '#tb1');">进入编辑模式</a>
     
        </div>
        <table border="1">
            <thead>
            <tr>
                <th>选择</th>
                <th>主机名</th>
                <th>端口</th>
                <th>状态</th>
            </tr>
            </thead>
            <tbody id="tb1">
                <tr>
                    <td><input type="checkbox" /></td>
                    <td edit="true">v1</td>
                    <td>v11</td>
                    <td edit="true" edit-type="select" sel-val="1" global-key="STATUS">在线</td>
                </tr>
                <tr>
                    <td><input type="checkbox" /></td>
                    <td edit="true">v1</td>
                    <td>v11</td>
                    <td edit="true" edit-type="select" sel-val="2" global-key="STATUS">下线</td>
                </tr>
                <tr>
                    <td><input type="checkbox" /></td>
                    <td edit="true">v1</td>
                    <td>v11</td>
                    <td edit="true" edit-type="select" sel-val="1" global-key="STATUS">在线</td>
                </tr>
            </tbody>
        </table>
     
        <script type="text/javascript" src="js/jquery-2.2.3.js"></script>
        <script>
            /*
             监听是否已经按下control键
             */
            window.globalCtrlKeyPress = false;
     
            window.onkeydown = function(event){
                if(event && event.keyCode == 17){
                    window.globalCtrlKeyPress = true;
                }
            };
            window.onkeyup = function(event){
                if(event && event.keyCode == 17){
                    window.globalCtrlKeyPress = false;
                }
            };
     
            /*
             按下Control，联动表格中正在编辑的select
             */
            function MultiSelect(ths){
                if(window.globalCtrlKeyPress){
                    var index = $(ths).parent().index();
                    var value = $(ths).val();
                    $(ths).parent().parent().nextAll().find("td input[type='checkbox']:checked").each(function(){
                        $(this).parent().parent().children().eq(index).children().val(value);
                    });
                }
            }
        </script>
        <script type="text/javascript">
     
    $(function(){
        BindSingleCheck('#edit_mode', '#tb1');
    });
     
    function BindSingleCheck(mode, tb){
     
        $(tb).find(':checkbox').bind('click', function(){
            var $tr = $(this).parent().parent();
            if($(mode).hasClass('editing')){
                if($(this).prop('checked')){
                    RowIntoEdit($tr);
                }else{
                    RowOutEdit($tr);
                }
            }
        });
    }
     
    function CreateSelect(attrs,csses,option_dict,item_key,item_value,current_val){
        var sel= document.createElement('select');
        $.each(attrs,function(k,v){
            $(sel).attr(k,v);
        });
        $.each(csses,function(k,v){
            $(sel).css(k,v);
        });
        $.each(option_dict,function(k,v){
            var opt1=document.createElement('option');
            var sel_text = v[item_value];
            var sel_value = v[item_key];
     
            if(sel_value==current_val){
                $(opt1).text(sel_text).attr('value', sel_value).attr('text', sel_text).attr('selected',true).appendTo($(sel));
            }else{
                $(opt1).text(sel_text).attr('value', sel_value).attr('text', sel_text).appendTo($(sel));
            }
        });
        return sel;
    }
     
    STATUS = [
        {'id': 1, 'value': "在线"},
        {'id': 2, 'value': "下线"}
    ];
     
    BUSINESS = [
        {'id': 1, 'value': "车上会"},
        {'id': 2, 'value': "二手车"}
    ];
     
    function RowIntoEdit($tr){
        $tr.children().each(function(){
            if($(this).attr('edit') == "true"){
                if($(this).attr('edit-type') == "select"){
                    var select_val = $(this).attr('sel-val');
                    var global_key = $(this).attr('global-key');
                    var selelct_tag = CreateSelect({"onchange": "MultiSelect(this);"}, {}, window[global_key], 'id', 'value', select_val);
                    $(this).html(selelct_tag);
                }else{
                    var orgin_value = $(this).text();
                    var temp = "<input value='"+ orgin_value+"' />";
                    $(this).html(temp);
                }
     
            }
        });
    }
     
    function RowOutEdit($tr){
        $tr.children().each(function(){
            if($(this).attr('edit') == "true"){
                if($(this).attr('edit-type') == "select"){
                    var new_val = $(this).children(':first').val();
                    var new_text = $(this).children(':first').find("option[value='"+new_val+"']").text();
                    $(this).attr('sel-val', new_val);
                    $(this).text(new_text);
                }else{
                    var orgin_value = $(this).children().first().val();
                    $(this).text(orgin_value);
                }
     
            }
        });
    }
     
    function CheckAll(mode, tb){
        if($(mode).hasClass('editing')){
     
            $(tb).children().each(function(){
     
                var tr = $(this);
                var check_box = tr.children().first().find(':checkbox');
                if(check_box.prop('checked')){
     
                }else{
                    check_box.prop('checked',true);
     
                    RowIntoEdit(tr);
                }
            });
     
        }else{
     
            $(tb).find(':checkbox').prop('checked', true);
        }
    }
     
    function CheckReverse(mode, tb){
     
        if($(mode).hasClass('editing')){
     
            $(tb).children().each(function(){
                var tr = $(this);
                var check_box = tr.children().first().find(':checkbox');
                if(check_box.prop('checked')){
                    check_box.prop('checked',false);
                    RowOutEdit(tr);
                }else{
                    check_box.prop('checked',true);
                    RowIntoEdit(tr);
                }
            });
     
     
        }else{
            //
            $(tb).children().each(function(){
                var tr = $(this);
                var check_box = tr.children().first().find(':checkbox');
                if(check_box.prop('checked')){
                    check_box.prop('checked',false);
                }else{
                    check_box.prop('checked',true);
                }
            });
        }
    }
     
    function CheckCancel(mode, tb){
        if($(mode).hasClass('editing')){
            $(tb).children().each(function(){
                var tr = $(this);
                var check_box = tr.children().first().find(':checkbox');
                if(check_box.prop('checked')){
                    check_box.prop('checked',false);
                    RowOutEdit(tr);
     
                }else{
     
                }
            });
     
        }else{
            $(tb).find(':checkbox').prop('checked', false);
        }
    }
     
    function EditMode(ths, tb){
        if($(ths).hasClass('editing')){
            $(ths).removeClass('editing');
            $(tb).children().each(function(){
                var tr = $(this);
                var check_box = tr.children().first().find(':checkbox');
                if(check_box.prop('checked')){
                    RowOutEdit(tr);
                }else{
     
                }
            });
     
        }else{
     
            $(ths).addClass('editing');
            $(tb).children().each(function(){
                var tr = $(this);
                var check_box = tr.children().first().find(':checkbox');
                if(check_box.prop('checked')){
                    RowIntoEdit(tr);
                }else{
     
                }
            });
     
        }
    }
     
     
        </script>
     
    </body>
    </html>

    　　

     
    分类: web
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  • 原文地址：https://www.cnblogs.com/weiman3389/p/6225026.html
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