javascript windows浏览器为什么不弹出alert

<html>
<head>
<title>Foxconn</title>
<script language=“JavaScript”>
function hello()
{
alert("welcome to come! ");
}
function byebye()
{
alert("want to go? Don't come next time");
}
</script>
</head>
<body onLoad="hello()" onUnLoad="byebye()">
</body>
</html>

<script language=“JavaScript”>

改为
<script language="JavaScript">

即可
(如果你没看出两者有什么差别,请用放大镜仔细看!)

或者直接改为
<script>

也可
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