# coding:utf-8# 带参数装饰器def f1(func):    print('开始！')    def f2(a):        print(func)        a()        print('执行')    return f2@f1('666')def f3():    print('测试开始')# 无参数装饰器def f1(func):    print('开始！')    def f2():        func()        print('执行')    return f2@f1def f3():    print('测试开始')if __name__ == '__main__':    f3()