eight_2.py

# 访问限制
# -*- coding: UTF-8 -*-

class Student(object):
    def __init__(self, name, gender):
        self.name = name
        self.__gender = gender
    
    def set_gender(self, gender):
        if gender == "male":
            self.__gender = gender
            return self.__gender
        elif gender == "female":
            self.__gender = gender
            return self.__gender
        else:
            print("数据有误")
    
    def get_gender(self):
        return(self.__gender)
        
bart = Student('Bart', 'male')
if bart.get_gender() != 'male':
    print('测试失败!')
else:
    bart.set_gender('female')
    if bart.get_gender() != 'female':
        print('测试失败!')
    else:
        print('测试成功!')