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大冰小松

#1 Created at ... [Delete] [Delete and Lock User] 
# 使用property
class Person(object):
    @property
    def score(self):
        return self.score

    @score.setter
    def score(self, value):
        if not isinstance(value, int):
            raise ValueError('score must be an integer')
        if value < 0 or value > 100:
            raise ValueError('score must between 0~100')
        self.score = value

p1 = Person()
p1.score = 78
print(p1.score)

报错：

 File "D:/workspace/PythonWS/python_study/use_property.py", line 37, in score
    self.score = value
RecursionError: maximum recursion depth exceeded

把self.score改成self._score就可以了，为什么？劳烦各位大神解释一下。

大冰小松

#2 Created at ... [Delete] [Delete and Lock User]

下面的评论说是由于方法名与属性名相同导致的，感觉是这样的，不过谁能解释一下这个递归过程？完全不明白。

大冰小松

#3 Created at ... [Delete] [Delete and Lock User]

debug了一下搞清楚了，self.name就是p1.name，也就是说在方法中还是把self.name=value解释set方法，导致重复调用自身

tytttta

#4 Created at ... [Delete] [Delete and Lock User]

原来如此，明白了 不过怎么debug

冯郭飞

#5 Created at ... [Delete] [Delete and Lock User]

下载一个编辑器我的是PyCharm，就可以debug了，可以很直观看到调用过程

恶魔的证明

#6 Created at ... [Delete] [Delete and Lock User]

还是不太明白是怎么搞的？？

恶魔的证明

#7 Created at ... [Delete] [Delete and Lock User]

方法名和属性名不能相同原来！！

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