public override IResponseMessageBase OnTextRequest(RequestMessageText requestMessage) { var responseMessage = base.CreateResponseMessage <ResponseMessageText>(); if (requestMessage.Content == null) { responseMessage.Content = "您没有发送任何消息内容!"; } else if (requestMessage.Content == "帮助") { responseMessage = HelpService.GetResponseMessage(requestMessage); } else if (requestMessage.Content == "科室") { responseMessage = DeptService.GetResponseMessage(requestMessage); } return(responseMessage); }