public void PostDelete(int gradeID) { int _code = 0; string _message = "删除年级失败"; _code = _gradeService.DeleteGradeByID(gradeID); if (_code > 0) { _message = "删除年级成功"; } else { _message = "对不起,修改失败!"; } RenderText("{\"code\":\"" + _code + "\",\"message\":\"" + _message + "\"}"); CancelLayout(); }