转换为中文字符串

function f(data) {

    if (data.length % 2) return '';

    var tmp='';

    for(i=0;i<data.length;i+=2){

        tmp += '%' + data.charAt(i) + data.charAt(i+1);

    }

    return decodeURI(tmp);

}

转换为unicode编码

function toUnicode(val){

    var strInput = val;

     var nInputLength = strInput.length;

     if(nInputLength%2 == 0) {//当输入够偶数位；

        var StrHex = "";

         for (var i=0; i < nInputLength; i = i + 2 ) { 

            var str = strInput.substr(i, 2); //16进制；

             //StrHex = StrHex + .toString(16);

             var n = parseInt(str, 16);//10进制；

            StrHex = StrHex + String.fromCharCode(n);

        }

        return StrHex;

    }

}