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#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
class User(object):
name=''
def __setattr__(self, name, value):
# 每一次属性赋值时, __setattr__都会被调用，因此不断调用自身导致无限递归了
# 会造成程序奔溃
self.name = value
if __name__ == '__main__':
user = User()
user.name='两点水'