Python3的多继承:
继承是面向对象编程语言的一大特性,python也支持继承,而且支持多继承。所谓多继承,简单来说,就是一个类的基类可以有多个。我们知道,在C++中,是支持多继承的,但是,在Java中,只支持单类继承,想实现多继承的效果,需要通过接口(Interface)来实现。再次强调,python支持多继承。
Python3的多继承举例:
下面是一个多继承的例子:
#!/usr/bin/python3
# -*- coding: UTF-8 -*-
#Persion类
class Persion:
__age = 1;
__sex = True; #True:男; False:女
# def __init__(self,age_param,sex_param):
# print("constructor2");
# self.__age = age_param;
# self.__sex = sex_param;
def getAge(self):
return self.__age;
def getSex(m):
return m.__sex;
def sayHello(self):
print("hello world!");
def __printHi(self):
print("Hi !!!");
class Boy(Persion):
__name = '';
def setName(self,name):
self.__name = name;
def getName(self):
return self.__name;
#编程class
class Program:
__launguage = '';
def setLaunguage(self,launguage):
self.__launguage = launguage;
def getLaunguage(self):
return self.__launguage;
class Programmer(Boy,Program):
def print(self):
print("Programmer info===","姓名:",self.getName(),"性别:",self.getSex(),"编程语言:",self.getLaunguage());
#实例化类
programmer = Programmer();
programmer.setName("LeiJun");
programmer.setLaunguage("Python");
programmer.print();
说明:
class Programmer(Boy,Program):
定义了一个Programmer类,其父类是Boy(Boy的父类是Persion)和Program。
其成员方法print(self)中,分别调用了两个父类的方法。
运行结果:
Python3 Persion.py
Programmer info=== 姓名: LeiJun 性别: True 编程语言: Python
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