python3中aiohttp+asyncio 高效率爬取图片例子，本地保存

import asyncio
import aiohttp
import time
import random
import os
from lxml import etree

path='F:\\wuso\\'      #文件保存路径

targe_url=[]            
for i in range(0,200):#total 178        建立任务链接
    targe_url.append('https://wuso.me/forum-photos-{}.html'.format(i))

async def run(url):
    path='F:\\wuso\\'
    headers={'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
 'Accept-Encoding':'gb2312,utf-8',
 'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0',
 'Accept-Language':'zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2',
 'Connection':'Keep-alive'
}
    try:
        async with aiohttp.ClientSession() as session:
            aiohttp.Timeout(5)
            async with session.get(url,headers=headers) as response:
                res=await response.text()
                res=etree.HTML(res)
                fName=res.xpath("//div[@class='c cl']/a/@title")
                #print(fName)
                fLink=res.xpath("//div[@class='c cl']/a/@href")
                for i in range(len(fName)):
                    async with session.get(fLink[i],headers=headers) as imgres:
                        t=await imgres.text()
                        t=etree.HTML(t)
                        imgLinks=t.xpath('//img/@zoomfile')
                        try:
                            if not os.path.exists(path+fName[i]):
                                os.makedirs(path+fName[i])
                            for link in imgLinks:
                                async with session.get('https://wuso.me/'+link,headers=headers) as img:
                                    try:
                                        imgcode=await img.read()
                                        try:
                                            with open(path+fName[i]+'\\'+link.split('/')[-1],'wb') as f:
                                                f.write(imgcode)
                                                f.close()
                                                print(link.split('/')[-1],'Saved')
                                        except:
                                            print('文件创建失败')
                                            pass
                                    except:
                                        print('二进制文件读取失败')
                                        pass
                        except:
                            print('Img保存失败')
                            pass
    except:
        print('response失败*******************************************')
        pass
start=time.time()
loop=asyncio.get_event_loop()
tasks=[]
for u in targe_url:
    tasks.append(asyncio.ensure_future(run(u)))
loop.run_until_complete(asyncio.wait(tasks))
loop.close()
print('total {}pages,time cost:{}'.format(len(tasks),time.time()-start))