python3基础09（装饰器的使用）

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

import time

#方式1class People:

def __init__(self, name, age):        self.__name = name        self.__age = age

def get_age1(self):        return self.__age

def set_age2(self, age):        if isinstance(age, int):            self.__age = age        else:            raise ValueError

def del_age3(self):        print("删除年龄数据！")

# 核心在这句    age1 = property(get_age1, set_age2, del_age3, "年龄")

obj = People("jack", 18)print(obj.age1)obj.age = 19print("obj.age:  ", obj.age)del obj.age

#方式2def deco(f):    def wrapper():        start_time = time.time()        f()        end_time = time.time()        execution_time = (end_time - start_time)*1000        print("time is %d ms" %execution_time )    return wrapper

@decodef f():    print("hello")    time.sleep(1)    print("world")

if __name__ == ‘__main__‘:    f()

原文地址：https://www.cnblogs.com/NiceTime/p/10085350.html