js中encodeURIComponent与C#中HttpUtility.UrlEncode

        /**//// <summary>
        /// 小写转大写，特殊字符特换
         /// </summary>
        /// <param name="strSrc">原字符串</param>
        /// <param name="encoding">编码方式</param>
        /// <param name="bToUpper">是否转大写</param>
        /// <returns></returns>
        private string UrlEncode(string strSrc, System.Text.Encoding encoding, bool bToUpper)
        ...{
            System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder();
            for (int i = 0; i < strSrc.Length; i++)
            ...{
                string t = strSrc[i].ToString();
                string k = HttpUtility.UrlEncode(t, encoding);
                if (t == k)
                ...{
                    stringBuilder.Append(t);
                }
                else
                ...{
                    if (bToUpper)
                        stringBuilder.Append(k.ToUpper());
                    else
                        stringBuilder.Append(k);
                }
            }
             if (bToUpper)
                return stringBuilder.ToString().Replace("+", "%20");
             else
                return stringBuilder.ToString();
        }