装饰器用法

from functools import wraps

def My_decorate(func):
    @wraps(func)
    def fn(*args,**kwargs):
        print('decorate called')
        return func(*args,**kwargs)
    return fn

@My_decorate
def text():
    print("test called")
    # decorate called
    # test called
if __name__ == '__main__':
    print(text.__name__)  #  @wraps(func) 加了后 是原函数名 text
    print(text.__name__) #不加，变为 fn