<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>js中字符串与数组的相互转换</title>
</head>
<body>
<script type="text/javascript">
//javascript数组转换为字符串：
/*var arr=new Array('百度','新浪','淘宝','京东');
document.writeln(arr.join(','));//输出：百度,新浪,淘宝,京东*/
//javascript字符串转换为数组：
var str='百度,新浪,淘宝,京东';
console.log(str.split(','));//输出：["百度", "新浪", "淘宝", "京东"]
</script>
</body>
</html>