#-*-coding:utf-8class Person:    __privateName=None;#私有变量    count=0;#既可以被实例对象引用，也可以被当做静态对象引用，NND，好混乱。    def __init__(self,name):        self.count+=1        Person.count+=2        print(‘%s has been created‘ % name)        self.__privateName=name;        self.name=name    def printPrivateName(self):        print(‘Private Name: %s‘ %  self.__privateName)    def printName(self):        print(‘Name is %s‘ % self.name)zili=Person(‘zili‘)Person.__privateName=‘zhangsan‘print(Person.__privateName)zili.__privateName=‘zhangsan‘print(‘jiangyao shuchu :%s‘ % zili.__privateName)zili.printName()zili.printPrivateName()print(zili.count)print(Person.count)Person.ABC=‘abcvalue‘print(Person.ABC)

Output：

zili has been created
zhangsan
jiangyao shuchu :zhangsan
Name is zili
Private Name: zili
1
2
abcvalue