public async Task<IActionResult> Save(AdvertisementDto model) { model.CategoryId = model.CategoryId?.Replace("null", ""); var entity = AdsService.GetById(model.Id); if (entity != null) { Mapper.Map(model, entity); bool b1 = await AdsService.SaveChangesAsync() > 0; return ResultData(null, b1, b1 ? "修改成功" : "修改失败"); } bool b = AdsService.AddEntitySaved(model.Mapper<Advertisement>()) != null; return ResultData(null, b, b ? "添加成功" : "添加失败"); }