叽叽喳喳，嘻嘻哈哈

摘要： class A: def save(self): print("save in a") def pre_save(self): print('pre save in a') class B(A): def save(self): self.pre_save() # 注3 print('save in 阅读全文

摘要： def dispatch(self, request, *args, **kwargs): """ `.dispatch()` is pretty much the same as Django's regular dispatch, but with extra hooks for startup 阅读全文