哪儿有错啊？

一天要饭生活又开始啦 2013-05-20 11:59:33

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>Untitled Document</title>

<script type='text/javascript'>

function x() {



}



x.prototype.alerts = function() {

	alert(this['0']);

};

x["0"] = 'name';

var xx = new x();

xx.alerts();

</script>

</head>



<body>

</body>

</html>

哪儿有错啊？

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script type='text/javascript'>
function x() {

}

x.prototype.alerts = function() {
	alert(this['0']);
};
var xx = new x();
xx["0"] = 'name';

xx.alerts();
</script>
</head>

<body>
</body>
</html>