只要调用这句:var result = client.Accurate(image); 就会报错 WebException: Error writing request: The authentication or decryption has failed. System.Net.WebConnectionStream.WriteHeaders () System.Net.WebConnectionStream.SetHeaders (System.Byte[] buffer) (wrapper remoting-invoke-with-check) System.Net.WebConnectionStream:SetHeaders (byte[]) System.Net.HttpWebRequest.SendRequestHeaders (Boolean propagate_error)...