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交作业

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Afternoon Tea

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class Student(object):
def __init__(self, name, gender):
# 设置private变量
self.__name = name
self.__gender = gender
def get_gender(self):
return self.__gender # 返回private变量的值 作用是:让private变量可以在外部进行提出
def set_gender(self, gender):
if gender == 'female' or 'male': # 滤除一些不必要的外部输出
self.__gender = gender # 将外部变量的值 传给内部private的值
else:
raise ValueError('bad score')

# 测试:
bart = Student('Bart', 'male') # bart指向Student这个类

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!')


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