比如，需要抓取链接“http://stockpage.10jqka.com.cn/000955/”下图3个周期的涨幅数据
这里我们先使用request请求获得数据，然后通过正则re匹配数据
分析网页结构数据，需要的数据存放在名称为“even hot_cont”的class下
所以正则的写法为：
1、先获取class=even hot_cont下的所有数据
“tr_content = re.findall(‘<tr class="even hot_cont">(.*?)</tr‘, response, re.S)[0]”
2、再获取td标签头的数据
“td_content = re.findall(‘<td.*?>(.*?)</td‘, tr_content, re.S)”
3、最后获取需要的数据
注意：(.*?)是匹配任意字符的意思
全部代码
import requests import re cookies = { ‘spversion‘: ‘20130314‘, ‘searchGuide‘: ‘sg‘, ‘Hm_lvt_78c58f01938e4d85eaf619eae71b4ed1‘: ‘1580136391,1580289267,1580373821,1581036534‘, ‘Hm_lvt_22a3c65fd214b0d5fd3a923be29458c7‘: ‘1581036563,1581037991,1581040818,1581042432‘, ‘Hm_lpvt_78c58f01938e4d85eaf619eae71b4ed1‘: ‘1581042471‘, ‘Hm_lpvt_22a3c65fd214b0d5fd3a923be29458c7‘: ‘1581042471‘, ‘historystock‘: ‘002341%7C*%7C002179%7C*%7C002458%7C*%7C002223‘, ‘v‘: ‘AqV2ZISrF5jZjHPExrLsDULrtGrI4llAo5Y9yKeKYVzrvsuWbzJpRDPmTPc0‘, } headers = { ‘Accept-Encoding‘: ‘gzip, deflate‘, ‘Accept-Language‘: ‘zh-CN,zh;q=0.9‘, ‘Upgrade-Insecure-Requests‘: ‘1‘, ‘User-Agent‘: ‘Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36‘, ‘Accept‘: ‘text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8‘, ‘Cache-Control‘: ‘max-age=0‘, ‘Connection‘: ‘keep-alive‘, } response = requests.get(‘http://stockpage.10jqka.com.cn/000955/‘, headers=headers, cookies=cookies).text #正则取出数据 tr_content = re.findall(‘<tr class="even hot_cont">(.*?)</tr‘, response, re.S)[0] print(tr_content) td_content = re.findall(‘<td.*?>(.*?)</td‘, tr_content, re.S) print(td_content) print(td_content[1])
执行结果
原文：https://www.cnblogs.com/becks/p/12294151.html