JavaScript实现全选取消效果

更新时间：2020-06-19 07:06:01 作者：startmvc

本文实例为大家分享了js实现全选取消效果的具体代码，供大家参考，具体内容如下<!DOCTY

本文实例为大家分享了js实现全选取消效果的具体代码，供大家参考，具体内容如下


<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
 <style>
 .hide {
 display: none;
 }

 .c1 {
 position: fixed;
 left: 0;
 top: 0;
 bottom: 0;
 right: 0;
 background-color: black;
 opacity: 0.6;
 z-index: 9;
 }

 .c2 {
 width: 500px;
 height: 400px;
 background-color: white;
 position: fixed;
 left: 50%;
 top: 50%;
 margin-left: -250px;
 margin-top: -300px;
 z-index: 10;
 }
 </style>
</head>
<body style="margin: 0;">
<div>
 <input type="button" value="添加" onclick="ShowModel();"/>
 <input type="button" value="全选" onclick="ChooseAll();"/>
 <input type="button" value="取消" onclick="CancelAll();"/>
 <input type="button" value="反选" onclick="ReverseAll();"/>
 <table>
 <thead>
 <tr>
 <th>选择</th>
 <th>主机名</th>
 <th>端口</th>
 </tr>
 </thead>
 <tbody id="tb">
 <tr>
 <td><input type="checkbox"/></td>
 <td>1.1.1.1</td>
 <td>90</td>
 </tr>
 <tr>
 <td><input type="checkbox"/></td>
 <td>1.1.1.2</td>
 <td>91</td>
 </tr>
 <tr>
 <td><input type="checkbox"/></td>
 <td>1.1.1.3</td>
 <td>92</td>
 </tr>
 </tbody>
 </table>
</div>
<!--遮罩层开始-->
<div id="i1" class="c1 hide"></div>
<!--遮罩层结束-->

<!--弹出框开始-->
<div id="i2" class="c2 hide">
 <p><input type="text"/></p>
 <p><input type="text"/></p>
 <p>
 <input type="button" value="取消" onclick="HideModel();"/>
 <input type="button" value="确定"/>
 </p>
</div>
<!--弹出框结束-->

<script>
 function ShowModel() {
 document.getElementById("i1").classList.remove("hide");
 document.getElementById("i2").classList.remove("hide");
 }
 function HideModel() {
 document.getElementById("i1").classList.add("hide");
 document.getElementById("i2").classList.add("hide");
 }
 function ChooseAll() {
 var tbody = document.getElementById("tb");
 var tb_list = tbody.children;
 for (var i = 0; i < tb_list.length; i++) {
 var current_tr = tb_list[i];
 var checkbox = current_tr.children[0].children[0];
 checkbox.checked = true;
 }
 }
 function CancelAll() {
 var tbody = document.getElementById("tb");
 var tb_list = tbody.children;
 for (var i = 0; i < tb_list.length; i++) {
 var current_tr = tb_list[i];
 var checkbox = current_tr.children[0].children[0];
 checkbox.checked = false;
 }
 }
 function ReverseAll() {
 var tbody = document.getElementById("tb");
 var tb_list = tbody.children;
 for (var i = 0; i < tb_list.length; i++) {
 var current_tr = tb_list[i];
 var checkbox = current_tr.children[0].children[0];
 if(checkbox.checked){
 checkbox.checked = false;
 }else{
 checkbox.checked = true;
 }
 }
 }
</script>
</body>
</html>

效果如下：