html 复选框一键反选

来源:互联网 发布:centos 7 编辑:程序博客网 时间:2024/05/22 15:02

效果:


<!doctype html>

<html lang="en">
 <head>
  <meta charset="UTF-8">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <title>一键反选</title>
  <style>
*{margin:0px;padding:0px;}
form table{
width:500px;
margin:10px auto;
border-right:1px solid red;
border-bottom:1px solid red;
border-collapse:collapse;
}
tr td{
border-left:1px solid red;
border-top:1px solid red;
}
  </style>
  <script>
window.onload=function(){
var arrs = document.getElementsByClassName("checkbox");
if(arrs.length >0 ){
arrs[0].onclick=function(){
for(var i = 1; i < arrs.length; i++){
arrs[i].checked = !arrs[i].checked;
}
}
}
}
  </script>
 </head>
 <body>
<form action="" method="post">
<table>
<tr>
<td width="20px"><input type="checkbox"  class="checkbox"></td>
<td>123</td>
</tr>
<tr>
<td><input type="checkbox" class="checkbox"></td>
<td>123</td>
</tr>
<tr>
<td><input type="checkbox" class="checkbox"></td>
<td>123</td>
</tr>
</table>
</form>
 </body>
</html>
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