javascript基础--数组join 

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

<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <script>
        var arr = [1, 2, 3, 4];
        alert(arr.join('-'));
        // 数组变字符串
    </script>
</head>

<body>

</body>

</html>

 

posted @ 2017-02-27 16:17  Mr_W_Blog  阅读(223)  评论(0)    收藏  举报