1,HTML source code£º
<![CDATA[
<html>
<head>
<title>How to use Long</title>
</head>
<body>
<script src="jsjava.js"></script>
<script>
var flag=Long.checkValid("44r");
document.write(flag+"<br>");
var l=Long.parseLong("7989");
document.write(l);
</script>
</body>
</html>
]]>
2,The display text is:
false
7989