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デコレーター

Posted at
def my_decorator(func):
    def wrapper():
        print("デコレーターの前処理")
        func()
        print("デコレーターの後処理")
    return wrapper

@my_decorator
def my_function():
    print("Hello, World!")


my_function()
デコレーターの前処理
Hello, World!
デコレーターの後処理

my_functionのデコレーターが呼び出される
my_decoretorの引数としてmy_functionが渡される。

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