编码转换函数

// 编码转换函数

  public string EnCodingCovert(System.Text.Encoding srcEncoding,System.Text.Encoding desEncoding,string arg_srcStr)
  {
   //string unicodeString = arg_str;
   string srcString = arg_srcStr;

   // Create two different encodings.
   Encoding srcCode = srcEncoding;
   Encoding desCode = desEncoding;

   // Convert the string into a byte[].
   byte[] srcBytes = srcCode.GetBytes(srcString);    
// Perform the conversion from one encoding to the other.
   byte[] desBytes = Encoding.Convert(srcCode, desCode, srcBytes);
              
   // Convert the new byte[] into a string.
   string desString  = desCode.GetString(desBytes);
   
   return desString;   }