python-class(3)

 1 #!/usr/bin/env python
 2 #-*- coding:utf-8 -*-
 3 ############################
 4 #File Name: class3.py
 5 #Author: frank
 6 #Email: [email protected]
 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()