1 #!/usr/bin/env python 2 #-*- coding:utf-8 -*- 3 ############################ 4 #File Name: class3.py 5 #Author: frank 6 #Email: frank0903@aliyun.com 7 #Created Time:2017-09-04 14:55:16 8 ############################ 9 10 class Parent: 11 parentAttr = 100 12 def __init__(self): 13 print "invoke construct of base class" 14 15 def parentMethod(self): 16 print "invode parentMethod" 17 18 def setAttr(self, attr): 19 Parent.parentAttr = attr 20 21 def getAttr(self): 22 print "attr of base class:", Parent.parentAttr 23 24 def myMethod(self): 25 print '调用父类方法' 26 27 class Child(Parent): 28 def __init__(self): 29 print "invoke construct of sub class" 30 31 def childMethod(self): 32 print "invode childMethod" 33 34 def myMethod(self): 35 print '调用子类方法' 36 37 c = Child() # 实例化子类 38 c.childMethod() # 调用子类的方法 39 c.parentMethod() # 调用父类方法 40 c.setAttr(200) # 再次调用父类的方法 - 设置属性值 41 c.getAttr() # 再次调用父类的方法 - 获取属性值 42 c.myMethod()
python3.5 环境下运行：
1 # -*- coding: utf-8 -*- 2 """ 3 Created on Mon Jun 11 12:49:01 2018 4 5 @author: Frank 6 """ 7 8 class Parent: 9 parentAttr = 100 10 def __init__(self): 11 print("invoke construct of base class") 12 13 def parentMethod(self): 14 print("invode parentMethod") 15 16 def setAttr(self, attr): 17 Parent.parentAttr = attr 18 19 def getAttr(self): 20 print("attr of base class:{}".format(Parent.parentAttr)) 21 22 def myMethod(self): 23 print('调用父类方法') 24 25 class Child(Parent): 26 def __init__(self): 27 print("invoke construct of sub class") 28 29 def childMethod(self): 30 print("invode childMethod") 31 32 def myMethod(self): 33 print('调用子类方法') 34 35 c = Child() # 实例化子类 36 c.childMethod() # 调用子类的方法 37 c.parentMethod() # 调用父类方法 38 c.setAttr(200) # 再次调用父类的方法 - 设置属性值 39 c.getAttr() # 再次调用父类的方法 - 获取属性值 40 c.myMethod() # override 41 print("attr:{}".format(c.parentAttr))