lxml库学习 - 爬取糗事百科热门段子

源码# !/usr/bin/env python# -*- coding:utf-8 -*-import requestsfrom lxml import etreeimport jsondef main():while True:page=input('请输入页码: ')if isinstance(int(page),int):

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725人浏览 · 2017-12-22 18:09:59

「已注销」 · 2017-12-22 18:09:59 发布

源码

# !/usr/bin/env python
# -*- coding:utf-8 -*-

import requests
from lxml import etree
import json


def main():
    while True:
        page=input('请输入页码: ')
        if isinstance(int(page),int):
            url='https://www.qiushibaike.com/8hr/page/{page}/'.format(page=page)
            request_header={
                'User-Agent':'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36'
            }
            resp=requests.get(url,headers=request_header)
            html=resp.text

            # 一页所有段子的xpath
            content_xpath='//div[contains(@id,"qiushi_tag")]'
            # 文字xpath
            text_xpath='./a//span[1]'
            # 图片xpath
            img_xpath='./div/a/img/@src'
            # 好笑
            vote_xpath='./div[@class="stats"]/span[1]//i/text()'
            # 评论
            comments_xpath='./div[@class="stats"]/span[2]//i/text()'

            html_et=etree.HTML(html)
            # 内容区节点
            content_et=html_et.xpath(content_xpath)

            for element in content_et:
                text=element.xpath(text_xpath)[0].text.strip()
                img=element.xpath(img_xpath)
                vote=element.xpath(vote_xpath)[0]
                comments=element.xpath(comments_xpath)[0]
                print(text)
                print(img)
                print(vote)
                print(comments)
                print()


if __name__ == '__main__':
    main()