<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<input type="checkbox" name="" id="" value="" />
<input type="checkbox" name="" id="" value="" />
<input type="checkbox" name="" id="" value="" />
<input type="checkbox" name="" id="" value="" />
<input type="checkbox" name="" id="" value="" />
<button type="button">全选</button>
<button type="button">不选</button>
<button type="button">反选</button>
</body>
<script src="../../js/jquery-1.10.1.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$('button').eq(0).click(function(){
$('input').each(function(a){
$('input').eq(a).prop('checked', true)
})
})
$('button').eq(1).click(function(){
$('input').each(function(a){
$('input').eq(a).prop('checked', false)
})
})
$('button').eq(2).click(function(){
$('input').each(function(){
this.checked = !this.checked
})
})
</script>
</html>
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