动态实例属性

用途

setattr()

>>> class foo(object):    def __init__(self, d):        self.d = d        for x in self.d: setattr(self, x, self.d[x])>>> d = {'a': 1, 'b': 2}>>> l = foo(d)>>> l.d{'a': 1, 'b': 2}>>> l.a1>>> l.b2>>>