String方法之fromCharCode()和charCodeAt().html

<!DOCTYPE html>
<html class="ui-page-login">

<head>


</head>


<body>
<script type="text/javascript">
    function toUnicodeFun(data){
        if(data == '' || typeof data == 'undefined') return '请输入汉字';
        var str ='';
        for(var i=0;i<data.length;i++){
            str+="\\u"+data.charCodeAt(i).toString(16);
        }
        return str;
    }

    var resultUnicode = toUnicodeFun('中国'); // \u4e2d\u56fd
    console.log(resultUnicode);


    function toChineseWords(data){
        if(data == '' || typeof data == 'undefined') return '请输入十六进制unicode';
        data = data.split("\\u");
        var str ='';
        for(var i=0;i<data.length;i++){
            str+=String.fromCharCode(parseInt(data[i],16).toString(10));
        }
        return str;
    }

    var resultChineseWords = toChineseWords("\u4e2d\u56fd");
    console.log(resultChineseWords);//中国
    document.write(String.fromCharCode(0x7C))

</script>

</body>

</html>