# -*- 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' or gender=='female':
else:
return ValueError('bad gender')
def get_gender(self):
return self._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!')
这里的两个参数都是 类的属性 检查参数有效性 应该在绑定属性前面就要检查才合理? 放在方法里面检查没啥意义啊
https://www.php.cn/python-tutorials-88879.html
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€ LEM.O
# -*- 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' or gender=='female':
self._gender = gender
else:
return ValueError('bad gender')
def get_gender(self):
return self._gender
# 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!')