取得字符串的字节长度

最新推荐文章于 2024-09-30 16:58:48 发布

原创最新推荐文章于 2024-09-30 16:58:48 发布 · 392 阅读

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<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="utf-8">
    <title>JavaScript 测试</title>
    <script type="text/javascript">
        //取得字符串的字节长度

        function strLen(str){
            var i,len;
            len = 0;
            for(i=0;i<str.length;i++){
                if(str.charCodeAt(i)>255){
                    len+=2;
                }else{
                    len++;
                }
            }
            return len;
        }

        //验证
        var str1 = "The American economic system is, organized around a basically private-enterprise, market- oriented economy in which consumers largely determine what shall be produced by spending their money in the marketplace for those goods and services that they want most."

        document.write(strLen(str1));
    </script>

</head>
<body>
</body>
</html>