js全选/全不选

方法一:

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>全选/全不选1</title>
<script src="http://libs.baidu.com/jquery/1.8.3/jquery.min.js"></script>
</head>
<body>
    <input type="checkbox" class="allcheck">全选/全不选<br>
    <input type="checkbox" class="subcheck">
    <input type="checkbox" class="subcheck">
    <input type="checkbox" class="subcheck">
    <input type="checkbox" class="subcheck">
    <input type="checkbox" class="subcheck">

    <script>
    	$(function(){
            $(".allcheck").click(function(){
                $(".subcheck").prop("checked",$(".allcheck").prop("checked"));
            });
    	});
    </script>
</body>
</html>

方法二：

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