#帶參數的裝飾器
#500個函數
import time
FLAGE = True
def timmer_out(flag):
    def timmer(func):
        def inner(*args,**kwargs):
            if flag:
                start = time.time()
                ret = func(*args,**kwargs)
                end = time.time()
                print(end-start)
                
 
return ret
            else:
                ret = func(*args, **kwargs)
                return ret
        return inner
    return timmer
# timmer = timmer_out(FLAGE)    #timmer = timmer_out(FLAGE)
#wahaha = timmer(wahaha)        #@timmer
@timmer_out(FLAGE)    
def wahaha():
    time.sleep(
 
0.1)
    print(‘wahahahahahaha‘)

@timmer_out(FLAGE)
def erguotou():
    time.sleep(0.1)
    print(‘erguotoutoutou‘)

wahaha()
erguotou()

#多個裝飾器裝飾一個函數
def wrapper1(func):
    def inner1():
        print(‘wrapper1 ,before func‘)
        ret = func()
        print(‘wrapper1 ,after func
 
‘)
        return ret
    return inner1

def wrapper2(func):
    def inner2():
        print(‘wrapper2 ,before func‘)
        ret = func()
        print(‘wrapper2 ,after func‘)
        return ret
    return inner2

def wrapper3(func):
    def inner3():
        print(‘wrapper3 ,before func‘)
        ret = func()
        print(‘wrapper3 ,after func‘)
        return ret
    return inner3

@wrapper3
@wrapper2
@wrapper1
def f():
    print(‘in f‘)
    return ‘哈哈哈‘

print(f())

#記錄用戶的登錄情況
#計算這個函數的執行時間

Python_裝飾器進階_32