<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<script type="text/javascript">
var fruit = new Array(3);
fruit[0] ="org";
fruit[1] ="apple";
fruit[2] ="bana";
document.write(fruit.join(",")); </script>
</head> </html>
感觉这个函数是split函数的逆。