爬虫下载斗图啦表情包

同步爬虫完成

import requests
from lxml import etree
import os,re
from urllib import request

def parse_page(url):
    headers={
        "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36"
    }
    response=requests.get(url,headers)
    text=response.text
    html=etree.HTML(text)
    imgs=html.xpath("//div[@class='col-sm-9 center-wrap']//img[@class!='gif']")
    for img in imgs:
        img_url=img.get("data-original")
        alt=img.get("alt")
        alt=re.sub(r'[\?？\.，。！!]','',alt)
        suffix=os.path.splitext(img_url)[1]
        filename=alt+suffix
        request.urlretrieve(img_url,'images/'+filename)

def main():
    urls="http://www.doutula.com/article/list/?page="
    for x in range(1,101):
        url=("http://www.doutula.com/article/list/?page=%d"%x)
        parse_page(url)

if __name__ == '__main__':
    main()

异步爬虫完成

import requests
from lxml import etree
import os,re
from urllib import request
from queue import Queue
import threading

class Producer(threading.Thread):
    headers={
        "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36"
        }
    def __init__(self,page_queue,img_queue,*args,**kwargs):
        super(Producer,self).__init__(*args,**kwargs)
        self.page_queue=page_queue
        self.img_queue=img_queue

    def run(self):
        while True:
            if self.page_queue.empty():
                break
            url =self.page_queue.get()
            self.parse_page(url)
    def parse_page(self,url):
        response=requests.get(url,self.headers)
        text=response.text
        html=etree.HTML(text)
        imgs=html.xpath("//div[@class='col-sm-9 center-wrap']//img[@class!='gif']")
        for img in imgs:
            img_url=img.get("data-original")
            alt=img.get("alt")
            alt=re.sub(r'[\?？\.，。！!\*]','',alt)
            suffix=os.path.splitext(img_url)[1]
            filename=alt+suffix
            self.img_queue.put((img_url,filename))
class Consumer(threading.Thread):
    def __init__(self,page_queue,img_queue,*args,**kwargs):
        super(Consumer,self).__init__(*args,**kwargs)
        self.page_queue=page_queue
        self.img_queue=img_queue
    def run(self):
        while True:
            if self.img_queue.empty() and self.page_queue.empty():
                break
            img_url,filename=self.img_queue.get()
            request.urlretrieve(img_url,'images/'+filename)
            print(filename+"下载完成！")
def main():
    page_queue=Queue(100)
    img_queue=Queue(10000)
    for x in range(1,101):
        url="http://www.doutula.com/article/list/?page=%d"%x
        page_queue.put(url)
    for x in range(5):
        t=Producer(page_queue,img_queue)
        t.start()
    for x in range(5):
        t=Consumer(page_queue,img_queue)
        t.start()

if __name__ == '__main__':
    main()