字符串反轉(zhuǎn)
先將字符串轉(zhuǎn)成數(shù)組材彪，然后再將數(shù)組反轉(zhuǎn)，最后將數(shù)組轉(zhuǎn)成字符串輸出
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>字符串反轉(zhuǎn)</title>
<script type="text/javascript">
var sTr = "123asdf79888asdfe21";
//1联逻、split字符串轉(zhuǎn)成數(shù)組
//2、reverse數(shù)組反轉(zhuǎn)
//3、join數(shù)組轉(zhuǎn)成字符串
var sTr2 = sTr.split('').reverse().join('');
alert(sTr2);//12efdsa88897fdsa321
</script>
</head>
<body>
</body>
</html>
