asp.net下百度的编码和解码

解码
System.Web.HttpUtility.UrlDecode("%C3%CF%CF%DC%BB%E1", System.Text.UnicodeEncoding.GetEncoding("GB2312"))

string a = System.Web.HttpUtility.UrlEncode("孟宪会", System.Text.UnicodeEncoding.GetEncoding("GB2312")).ToUpper();
Response.Write(a);
Response.Write(System.Web.HttpUtility.UrlDecode("%C3%CF%CF%DC%BB%E1", System.Text.UnicodeEncoding.GetEncoding("GB2312")));