# 开放封闭原则:
# 扩展是开放的(增加新功能)
# 修改源码是封闭(修改已经实现的功能)
# 在不改变源代码及调用方式的基础下额外增加新的功能
# 装饰器:用来装饰的工具
# 版一:
import time
# start_time = time.time()
# def func():
# time.sleep(2) #睡眠 (模拟网络延时)
# print("我要飞")
# func()
# print(time.time() - start_time)
# start_time = time.time()
# def foo():
# time.sleep(3) #睡眠 (模拟网络延时)
# print("我是小明,我飞的比你高")
# foo()
# print(time.time() - start_time)
# 版二:
# def times(f):
# start_time = time.time()
# f()
# print(time.time() - start_time)
# def foo():
# time.sleep(3) #睡眠 (模拟网络延时)
# print("我是小明,我飞的比你高")
# def func():
# time.sleep(1) #睡眠 (模拟网络延时)
# print("我是业儿,我起不来")
# s = func
# func = times
# s = foo
# foo = times
# foo(s)
# 版三(初识版装饰器):
# def times(f):
# def inner():
# start_time = time.time()
# f()
# print(time.time() - start_time)
# return inner
#
# def foo():
# time.sleep(1) #睡眠 (模拟网络延时)
# print("我是李业,我快!")
#
# foo = times(foo)
# foo()
# 版四(第二版装饰器):
# def wrapper():
# def inner():
# print(1)
# return inner # 切记不要加括号
# wrapper()
# def wrapper(f):
# def inner():
# print(f)
# return inner # 切记不要加括号
# wrapper("alex")
# def wrapper(f):
# def inner():
# f()
# return inner # 切记不要加括号
#
# def func():
# print("这是func函数,李业还是不行")
# func = wrapper(func)
# func()
# def wrapper(f):
# def inner(*args,**kwargs):
# f(*args,**kwargs) # func("alex")
# return inner # 切记不要加括号
#
#
# def func(*args,**kwargs):
# print(f"这是{args}函数,李业还是不行")
#
#
# func = wrapper(func)
# func("alex","sur")
# low版
# import time
# def wrapper(f):
# def inner(*args,**kwargs):
# "被装饰前"
# start_time = time.time()
# f(*args,**kwargs) # func("alex")
# print(time.time() - start_time)
# "被装饰后"
# return inner # 切记不要加括号
#
#
# def func(*args,**kwargs):
# print(f"这是{args}函数,李业还是不行")
# time.sleep(2) #模拟网络延时
#
#
# func = wrapper(func)
# func("alex","sur")
# 高级
# import time
# def wrapper(f):
# def inner(*args,**kwargs):
# "被装饰前"
# start_time = time.time()
# f(*args,**kwargs) # func("alex")
# print(time.time() - start_time)
# "被装饰后"
# return inner # 切记不要加括号
#
# # @wrapper # func = wrapper(func)
# def func(*args,**kwargs):
# print(f"这是{args}函数,李业还是不行")
# time.sleep(2) #模拟网络延时
# # @wrapper # foo = wrapper(foo)
# def foo(*args,**kwargs):
# print(f"这是{args}函数,常鑫穿齐*小短裤")
# time.sleep(3) #模拟网络延时
# func = wrapper(func)
# foo = wrapper(foo)
# func("alex","sur")
# foo("alex","sur")
# 语法糖 -- 甜
# 语法糖必须放在被装饰的函数正上方
# func = wrapper(func)
# foo = wrapper(foo)
# import time
# def wrapper(f):
# def inner(*args,**kwargs):
# "被装饰前"
# start_time = time.time()
# ret = f(*args,**kwargs) # func("alex")
# print(time.time() - start_time)
# "被装饰后"
# return ret
# return inner # 切记不要加括号
#
# @wrapper # func = wrapper(func)
# def func(*args,**kwargs):
# print(f"这是{args}函数,李业还是不行")
# time.sleep(2) #模拟网络延时
# return "alex"
# print(func())
# login_dic = {
# "username": None,
# "flag": False
# }
#
#
# def auth(f):
# def inner(*args,**kwargs):
# if login_dic["flag"]:
# return f()
# else:
# return login()
# return inner
#
# @auth
# def index():
# print(f"这是{login_dic['username']}主页")
# return "主页没有内容"
#
# def login():
# print("这是一个登录页面")
# user = input("username:")
# pwd = input("password:")
# if user == "baoyuan" and pwd == "baoyuan123":
# login_dic["flag"] = True
# login_dic["username"] = user
# return "登录成功!"
#
# else:
# return "用户名或密码错误!"
#
# @auth
# def comment():
# print(f"这是{login_dic['username']}评论")
#
# while not login_dic["flag"]:
# print(comment())
