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[Java教程]js中的in


<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript" src="jquery.js"></script>

</head>
<body>
<input type="checkbox" name="test" value="1"/><span>a</span>
<input type="checkbox" name="test" value="2"/><span>b</span>
<input type="checkbox" name="test" value="3"/><span>c</span>
<input type="checkbox" name="test" value="4"/><span>d</span>
<input type="checkbox" name="test" value="5"/><span>e</span><br>
<input type='button' value='提交' onclick="fun()"/>
<script>
function fun(){
obj = document.getElementsByName("test");
check_val = [];
//var k;
for(k in obj){
if(obj[k].checked)
check_val.push(obj[k].value);
}
alert(check_val);
}

</script>
</body>
</html>