import abc
class All_file(metaclass=abc.ABCMeta):
@abc.abstractmethod
def read(self):
pass
@abc.abstractmethod
def write(self):
pass
class Disk(All_file):
def read(self):
print('disk read')
# def write(self):
# print('disk write')
m1=Disk()
TypeError: Can't instantiate abstract class Mem with abstract methods write
# 当定义了abc.abstractmethod属性后,衍生类,必须定义此方法
继承:
父类.__init__(self,name,speed,load,power)
# super().__init__(name,speed,load,power)
# super(衍生类,self).__init__(name,speed,load,power)
调用父类的方法:
Vehicle.run(self)
super().run()
module_t=__import__('m1.t')
print(module_t)
module_t.t.test1()
import importlib
m=importlib.import_module('m1.t')
print(m)
m.test1()
m._test2()