c# unicode 编码 中文转换 已测试（转）

    中文传参时因为编码不同经常凌乱风中，故传前编成unicode码来过度是一个不错的解决方法

        /// <summary>

        /// 中文转unicode
        /// </summary>
        /// <returns></returns>
        public static string unicode_0(string str)
        {
            string outStr = "";
            if (!string.IsNullOrEmpty(str))
            {
                for (int i = 0; i < str.Length; i++)
                {
                    outStr += "/u" + ((int)str[i]).ToString("x");
                }
            }
            return outStr;
        }
        /// <summary>
        /// unicode转中文
        /// </summary>
        /// <returns></returns>
        public static string unicode_1(string str)
        {
            string outStr = "";  
            if (!string.IsNullOrEmpty(str))  
            {  
                string[] strlist = str.Replace("/","").Split('u');  
                try  
                {  
                    for (int i = 1; i < strlist.Length; i++)  
                    {  
                        //将unicode字符转为10进制整数，然后转为char中文字符  
                        outStr += (char)int.Parse(strlist[i], System.Globalization.NumberStyles.HexNumber);  
                    }  
                }  
                catch (FormatException ex)  
                {  
                    outStr = ex.Message;  
                }  
            }
            return outStr;

        }

        /// <summary>
        /// unicode转中文（符合js规则的）
        /// </summary>
        /// <returns></returns>
        public static string unicode_js_1(string str)
        {
            string outStr = "";
            Regex reg = new Regex(@"(?i)\u([0-9a-f]{4})");
            outStr = reg.Replace(str, delegate(Match m1)
            {
                return ((char)Convert.ToInt32(m1.Groups[1].Value, 16)).ToString();
            });
            return outStr;
        }
        /// <summary>
        /// 中文转unicode（符合js规则的）
        /// </summary>
        /// <returns></returns>
        public static string unicode_js_0(string str)
        {
            string outStr = "";
            string a = "";
            if (!string.IsNullOrEmpty(str))
            {
                for (int i = 0; i < str.Length; i++)
                {
                    if (Regex.IsMatch(str[i].ToString(), @"[u4e00-u9fa5]")) { outStr += "\u" + ((int)str[i]).ToString("x"); }
                    else { outStr += str[i]; }
                }
            }
            return outStr;
        } 

转自：http://blog.csdn.net/lbx541575387/article/details/6710815