Python-如何使用点“。” 访问字典成员？

Python-如何使用点“。” 访问字典成员？

你可以使用我刚刚制作的此类来做。通过此类，你可以

Map

像其他字典（包括json序列化）一样使用该对象，也可以使用点符号。希望对你有所帮助：

class Map(dict):    """    Example:    m = Map({'first_name': 'Eduardo'}, last_name='Pool', age=24, sports=['Soccer'])    """    def __init__(self, *args, **kwargs):        super(Map, self).__init__(*args, **kwargs)        for arg in args: if isinstance(arg, dict):     for k, v in arg.iteritems():         self[k] = v        if kwargs: for k, v in kwargs.iteritems():     self[k] = v    def __getattr__(self, attr):        return self.get(attr)    def __setattr__(self, key, value):        self.__setitem__(key, value)    def __setitem__(self, key, value):        super(Map, self).__setitem__(key, value)        self.__dict__.update({key: value})    def __delattr__(self, item):        self.__delitem__(item)    def __delitem__(self, key):        super(Map, self).__delitem__(key)        del self.__dict__[key]

用法示例：

m = Map({'first_name': 'Eduardo'}, last_name='Pool', age=24, sports=['Soccer'])# Add new keym.new_key = 'Hello world!'# Orm['new_key'] = 'Hello world!'print m.new_keyprint m['new_key']# Update valuesm.new_key = 'Yay!'# Orm['new_key'] = 'Yay!'# Delete keydel m.new_key# Ordel m['new_key']