<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>变量</title>
<script type="text/javascript">
var mynum = 8;
var mychar = "zhuaer";
var mycom = "com";
document.write(mynum + mychar + mycom );
</script>
</head>
<body>
</body>
</html>
