摘要:
class A: def cost(self): print('cost a')class B: def cost(self): print('cost b')class MyAdapter: def __init__(self, obj): self.obj = obj def pay
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posted @ 2023-07-30 13:01
CJTARRR
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摘要:
class Singleton(object): def __new__(cls, *args, **kwargs): if not hasattr(cls, '_instance'): cls._instance = super(Singleton, cls).__new__(cls) retu
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posted @ 2023-07-30 10:39
CJTARRR
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