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Python类访问限制


如果要让内部属性不被外部访问,可以把属性的名称前加上两个下划线__,在Python中,实例的变量名如果以__开头,就变成了一个私有变量(private),只有内部可以访问,外部不能访问

class Student(object):

def __init__(self, name, score):
self.__name = name
self.__score = score

def print_score(self):
print('%s: %s' % (self.__name, self.__score))

bart = Student('Bart Simpson', 59)
bart.__name

AttributeError: 'Student' object has no attribute '__name'

class Student(object):

def __init__(self, name, score):
self.__name = name
self.__score = score

def print_score(self):
print('%s: %s' % (self.__name, self.__score))
def get_name(self):
return self.__name

bart = Student('Bart Simpson', 59)

print(bart.get_name())

Bart Simpson


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