javascript基础--字符串变数组 

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <script>
        var str = "12-4-5-22";
        var arr = str.split('-'); //字符串转换成数组
        alert(arr[0]);
    </script>
</head>

<body>

</body>

</html>

 

posted @ 2017-02-27 16:18  Mr_W_Blog  阅读(696)  评论(0)    收藏  举报