//Escape方法

        public static string Escape(string s)

        {

            StringBuilder sb = new StringBuilder();

            byte[] byteArr = System.Text.Encoding.Unicode.GetBytes(s);

            for (int i = ; i < byteArr.Length; i += )

            {

                sb.Append("%u");

                sb.Append(byteArr[i + ].ToString("X2"));//把字節轉換為十六進制的字符串表現形式

                sb.Append(byteArr[i].ToString("X2"));

            }

            return sb.ToString();

        }

        //UnEscape方法

        public static string UnEscape(string s)

        {

            string str = s.Remove(, );//刪除最前面兩個＂%u＂

            string[] strArr = str.Split(new string[] { "%u" }, StringSplitOptions.None);//以子字符串＂%u＂分隔

            byte[] byteArr = new byte[strArr.Length * ];

            for (int i = , j = ; i < strArr.Length; i++, j += )

            {

                byteArr[j + ] = Convert.ToByte(strArr[i].Substring(, ), );  //把十六進制形式的字串符串轉換為二進制字節

                byteArr[j] = Convert.ToByte(strArr[i].Substring(, ), );

            }

            str = System.Text.Encoding.Unicode.GetString(byteArr); //把字節轉為unicode編碼

            return str;

        }