Python使用BeautifulSoup提取特定HTML标签内容

将网页的HTML元代码down到本地，然后读取

#coding=utf-8

from bs4 import BeautifulSoup

import datetimedef getYesterdayTime():now_time=datetime.datetime.now()yes_time = now_time + datetime.timedelta(days=-1)yesterdaytime = yes_time.strftime('%Y%m%d')return yesterdaytimedef getUserNamelist():namelist = list()htmldoc = open('caijiinfo'+getYesterdayTime()+'.html', 'r').read()soup = BeautifulSoup(htmldoc, "html.parser")lables = soup.find('div', class_="header").find_all("div")[1]for i in range(len(lables)):namelist.append('_' + lables[i].find('span', class_='row3').string.encode('utf-8') + '_')return namelistif __name__=='__main__':namelist=getUserNamelist()print namelist