from functools import wraps
import time
def Time(func1):
    @wraps(func1)
    def Wrapper(*args,**kwargs):
        start = time.time()
        ret = func1(args)
        end = time.time()
        print(end - start)
        return ret
    return Wrapper


def func1(day):
    time.sleep(0.5)
    '''好嗨呦'''
    print('放假%s天'%day)
    return '好开心'

func1 = Time(func1)
ret = func1(10)
print(func1.__name__)
# 打印函数的名字
print(func1.__doc__)
# 打印函数中注释部分内容;不过我用的python 3.5 ,__doc__这个内置函数好像并未生效，老男孩的代码也没有生效，下次注意研究

import time
Conditions = True
# 在已经写好的装饰器中要对装饰器做参数判断，可以使用三层嵌套来完成，在嵌套外部定义一个判断值；这样就不用改动后续代码，只需要改动判断值即可；
def Time_out(Conditions):
    def Time(func1):
        def inner(*args,**kwargs):
            if Conditions:
                start = time.time()
                ret = func1(*args,**kwargs)
                end = time.time()
                print(end - start)
                return ret
            else:
                ret = func1(*args,**kwargs)
                return ret
        return inner
    return Time
Time = Time_out(Conditions)

@Time
def fun1():
    time.sleep(0.5)
    print('func1')

@Time
def fun2():
    print('func2')
    time.sleep(0.5)
fun1()
fun2()

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())