python类变量

#!/usr/bin/env python
#_*_coding:utf8_*_

class People(object):
    infor = ‘test info‘#类变量
    infor_dic = {
        "name":‘dodo‘,
        "age":30
    }        #字典可以共享，浅copy知识
    def __init__(self,name,age,job): #构造方法，实现参数初始化
        self.name = name
        self.__age = age #私有变量,不可外部调用，只可类内部调用,外部不可更改
        self.job = job
    def __breath(self):#私有方法，不可外部调用，只可类内部调用
        print(‘{}正在呼吸中.....‘.format(self.name))
    def get_age(self,target):
        if target == ‘age‘:
            print("age:{}".format(self.__age)) #内部调用私有变量
        elif targe == ‘who‘:
            print(‘None...‘)
        else:
            print("hahahahhahahaha")
    def walk(self):
        print("{} walking....".format(self.name))
        self.__breath()#内部调用私有方法
    def talk(self):
        print("{} talking....".format(self.name))

if __name__ == ‘__main__‘:
    p1 = People("dodo",23,‘xiguan‘)
    print(‘p1.name:{}‘.format(p1.name))
    #print(‘p1.age:{}‘.format(p1.get_age("age")))
    p1.get_age(‘age‘)
    p1.walk()
    p1.talk()
    #p1.__age外部不能访问私有变量，如果实在要访问可为p1._People__age
    p1._People__age = 30#一般不建议这样访问私有变量
    print(‘age‘,p1._People__age)
    print(‘name‘,p1.name)
    print(‘job‘,p1.job)