#!/usr/bin/env python
# -*- coding:utf-8 -*-
import time

def wrapper(func):
    def deco():
        start = time.time()
        func()
        stop = time.time()
        print("the func run %s"%(stop - start))
    return deco

#這裏的【@wrapper】等於【test1 = wrapper(test1)】,wrapper(test1),將test1函數以實參的形式傳遞給wrapper函數，wrapper函數將會把deco函數的內存地址作為返回值返回給變量test1,而此時test1變量所指引的值相當於是deco函數的內存地址，如果test1()則將會執行deco函數
@wrapper  
 
def test1():
    time.sleep(3)    
    print("in the test1...")
@wrapper
def test2():
    time.sleep(3)    
    print("in the test2...")
test1()
test2()

裝飾器1（被裝飾函數不帶參數）