python-第二块，笔记整理和学习内容复习（day7）

import time
def deco(func):      #高阶函数1，实现装饰功能，但是修改了原函数的调用方式
    start_time = time.time()
    func()
    stop_time = time.time()
    print("the run time is %s"%(stop_time-start_time))

def test1():
    time.sleep(1)
    print("in the test1")

deco(test1)
test1()

def deco(func):      #高阶函数2，未能实现装饰功能，但是未了原函数的调用方式
    start_time = time.time()
    stop_time = time.time()
    print("the run time is %s"%(stop_time-start_time))
    return func

def test1():
    time.sleep(1)
    print("in the test1")

test1()

def deco(func):
    def func1():      #高阶函数2，未能实现装饰功能，但是未了原函数的调用方式
        start_time = time.time()
        func()
        stop_time = time.time()
        print("the run time is %s"%(stop_time - start_time))       #声明一个函数“变量”
    return func1                                                    #返回这个函数“变量”内存地址

@deco            #test1 = deco(test1)                                #添加装饰器
def test1():
    time.sleep(1)
    print("in the test1")

test1()

def fei(max):              #斐波那契额函数
    a,b,n = 0,1,0
    while n < max:
        print(b)
        a,b = b,a+b
        n += 1

def feib(max):
    a,b,n = 0,1,0
    while n < max:
        yield b            #将print 改为 yield 变成斐波那契生成器
        a,b = b,a+b
        n += 1
f = feib(10)
print(f.__next__())
# for i in fei(10):
#     print(i)