# http://stackoverflow.com/questions/3118929/implementing-the-decorator-pattern-in-python class foo(object): def f1(self): print("original f1") def f2(self): print("original f2") class foo_decorator(object): def __init__(self, decoratee): self._decoratee = decoratee def f1(self): print("decorated f1") self._decoratee.f1() def __getattr__(self, name): return getattr(self._decoratee, name) u = foo() v = foo_decorator(u) v.f1() v.f2()
点击run it 运行之!!!