public async Task <MessageModel <QuestionBank> > Get(int id)
        {
            if (!(id > 0))
            {
                return(new MessageModel <QuestionBank>()
                {
                    msg = $"id 为空:{id}",
                    response = null
                });
            }
            var model = await _questionBankRepository.QueryById(id);

            return(new MessageModel <QuestionBank>()
            {
                msg = "获取成功",
                success = true,
                response = model
            });
        }