中文字符 与 十六进制Unicode编码 相互转换

var str="胜多负少";

document.write(str.charCodeAt(0)+'<br/>');    //32988
document.write(str.charCodeAt(2)+'<br/>');    //36127

document.write(String.fromCharCode(32988)+'<br/>');        //胜
document.write(String.fromCharCode(36127)+'<br/>');        //负

    var toUnicode = function (s) {
        var str = "";
        for (var i = 0; i < s.length; i++) {
            str +="\\u"+s.charCodeAt(i).toString(16)+"\t";
        }
        return str;
    }
    var a = '胜多负少';

    document.write(toUnicode(a));    // \u80dc    \u591a    \u8d1f    \u5c11

    var toStr = function (n){
        var str = "";
        var s = n.split('\\u');
        for(var i = 0;i < s.length;i++){
            str += String.fromCharCode(parseInt(s[i],16))+"\t";
        }
        return str;
    }
    var b = "\\u80dc    \\u591a    \\u8d1f    \\u5c11";

    document.write(toStr(b));    // 胜    多    负    少