Javascript 重载alert重载
Javascript中window自带的是可以重载的示例如下：
<html>
<head>
<script>
var _alert = window.alert;
window.alert = function(str) {
_alert(str + 'newalert');
}
alert('bbb');
</script>
</head>
<body></body>
</html>
我与我周旋久 宁做我/平安、健康、智慧/Do Something,Say Something / Joy resides in every step of growth
