sNData = (string)gtMString.Invoke(obj, new string[] { "aa","aa" });//(调用成功没有任何问题--参数都是字符型的)sNData = (string)gtHValue.Invoke(obj, new object[] {(string)sNData,(string)sTPY,(Int32)sBYT });gtMString返回值不就是string么 为啥还要加(string)