python容易出错的返回值
2021-04-24 04:27
                         标签:one   div   出错   set   pre   内存   打印   gis   返回      python容易出错的返回值 标签:one   div   出错   set   pre   内存   打印   gis   返回    原文地址:https://www.cnblogs.com/Fmaj7/p/13266800.htmlclass _ActionsContainer(object):
    def __init__(self):
        self._registries = {}
    def register(self, registry_name, value, object):
        registry = self._registries.setdefault(registry_name, {}) #此处setdefault参数相当于key,vaule,最终返回value,次value与registry共享内存
        print(registry)
        print(self._registries)
        registry[value] = object
if __name__ == ‘__main__‘:
    action = _ActionsContainer()
    action.register(‘action‘, None,  ‘xxx‘)
    #打印结果?
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