public Respbase <ChatGroupDto> CreateGroup(CreateGroupReq req) { ChatFacade facade = new ChatFacade(); ChatGroupDto group = facade.CreateGroup(req); if (group == null) { return(new Respbase <ChatGroupDto> { Result = facade.PromptInfo.Result, Message = facade.PromptInfo.Message, Data = null }); } return(new Respbase <ChatGroupDto> { Data = group }); }