Python: there are a plurality of reference decorated with a decorative function decorator

There are parameters decorator

def timmerout(flag1):  #flag1 =flag
    def timmer(f):
        def inner(*args,**kwargs):
            if flag1:
                start_time = time.time()
                ret = f(*args,**kwargs)
                end_time = time.time()
                print('此函数的执行效率%s' % (end_time - start_time))
                return ret
            else:
                ret = f(*args, **kwargs)
                return ret
        return inner
    return timmer


flag = False
@timmerout(flag)　　　　#将@与timmerout(flag)分离,拿到后者的执行结果后在与@组合。
def func1():
    time.sleep(0.3)
    print('非常复杂......')
    return 666

1, with the function to separate @ @ timmerout (flag) returns Timmer
2, binding @timmer

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A plurality of decorative function decorator

def wrapper1(func):  # func = f函数名
    def inner1():
        print('wrapper1 ,before func')  # 2
        func()  # f函数名()
        print('wrapper1 ,after func')  # 4
    return inner1

def wrapper2(func):  # func = inner1
    def inner2():
        print('wrapper2 ,before func')  # 1
        func()  # inner1()
        print('wrapper2 ,after func')  # 5
    return inner2

@wrapper2  # f = warpper2(f)  里面的f是inner1 外面的f是inner2
@wrapper1  # f = warpper1(f)  里面的f函数名 外面的f 是inner1
def f():
    print('in f')  # 3
f()  # inner2()


# wrapper2 ,before func
# wrapper1 ,before func
# in f
# wrapper1 ,after func
# wrapper2 ,after func