day05 协程函数，递归函数，匿名函数lambda，内置函数map reduce filter max min zip sorted，匿名函数lambda和内置函数结合使用，面向过程编程与函数编程，模块与包的使用，re模块内置函数

def eater(name):
    print(‘%s 开始吃了‘ %name)
    while True:
        food=yield
        print(‘%s开始吃%s‘%(name,food))



g=eater(‘alex‘)
next(g)

def eater(name):
    print(‘%s 开始吃了‘ %name)
    list1=[]
    while True:
        food=yield list1
        print(‘%s开始吃%s‘%(name,food))
        list1.append(food)


g=eater(‘alex‘)
next(g)
res=g.send(‘苹果‘)
res=g.send(‘橘子‘)
res=g.send(‘香蕉‘)
print(res)

def zhuangshi(func):
    def neibu(*args,**kwargs):
        g=func(*args,**kwargs)
        next(g)
        return g
    return neibu
@zhuangshi      #eater=neibu
def eater(name):
    print(‘%s 开始吃了‘ %name)
    list1=[]
    while True:
        food=yield list1
        print(‘%s开始吃%s‘%(name,food))
        list1.append(food)


g=eater(‘alex‘)
res=g.send(‘苹果‘)
res=g.send(‘橘子‘)
res=g.send(‘香蕉‘)
print(res)

import os

def init(func):
    def wrapper(*args,**kwargs):
        res=func(*args,**kwargs)
        next(res)
        return res
    return wrapper

@init
def search(target):
    while True:
        search_path=yield
        g=os.walk(search_path)
        for par_dir,_,files in g:
            for file in files:
                file_abs_path=r‘%s\%s‘ %(par_dir,file)
                # print(file_abs_path)
                target.send(file_abs_path)

@init
def opener(target):
    while True:
        file_abs_path=yield
        # print(‘opener func==>‘,file_abs_path)
        with open(file_abs_path,encoding=‘utf-8‘) as f:
            target.send((file_abs_path,f))

@init
def cat(target):
    while True:
        file_abs_path,f=yield  #(file_abs_path,f)
        for line in f:
            tag=target.send((file_abs_path,line))
            if tag:
                break
@init
def grep(target,pattern):
    tag=False
    while True:
        file_abs_path,line=yield tag
        tag=False
        if pattern in line:
            tag=True
            target.send(file_abs_path)

@init
def printer():
    while True:
        file_abs_path=yield
        print(file_abs_path)



x=r‘C:\Users\Administrator\PycharmProjects\python17期\day5\a‘



g=search(opener(cat(grep(printer(),‘python‘))))
print(g)

g.send(x)