CryptoJS_Base64

<!DOCTYPE html>
<html>

<head>
<meta charset="UTF-8">
<title></title>
<script src="js/core-min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/enc-base64.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
var str = CryptoJS.enc.Utf8.parse("张");
var base64 = CryptoJS.enc.Base64.stringify(str);
// base64 = 5byg
var words = CryptoJS.enc.Base64.parse("5byg");
var parseStr = words.toString(CryptoJS.enc.Utf8);
// parseStr = 张
</script>
</head>

<body>
</body>

</html>