#请把下面的Student对象的gender字段对外隐藏起来,用get_gender()和set_gender()代替,并检查参数有效性:
# -*- coding: utf-8 -*-
class Student(object):
def __init__(self, name, gender):
self.name = name
self.__gender = gender
def get_gender(self):
if (self.__gender == 'male' or self.__gender == 'female'):#检查self.__gender输入的正确性
return self.__gender
else:
raise ValueError('Gender should be \'male\' or \'female\'')
def set_gender(self,gender):
if (gender == 'male' or gender == 'female'):#检查gender输入的正确性
self.__gender=gender
# 测试:
bart = Student('Bart', 'male')
if bart.get_gender() != 'male':
print('测试失败!')
bart.set_gender('female')
if bart.get_gender() != 'female':
print('测试成功!')
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夜間急行列車4番線
#请把下面的Student对象的gender字段对外隐藏起来,用get_gender()和set_gender()代替,并检查参数有效性:
# -*- coding: utf-8 -*-
class Student(object):
def __init__(self, name, gender):
self.name = name
self.__gender = gender
def get_gender(self):
if (self.__gender == 'male' or self.__gender == 'female'):#检查self.__gender输入的正确性
return self.__gender
else:
raise ValueError('Gender should be \'male\' or \'female\'')
def set_gender(self,gender):
if (gender == 'male' or gender == 'female'):#检查gender输入的正确性
self.__gender=gender
else:
raise ValueError('Gender should be \'male\' or \'female\'')
# 测试:
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!')