Python网络爬虫爬取贴吧话题热议榜单(可自定义条数)

Posted 2021-03-04 ChargeCrystal

 
以上为页面结构

import pandas as pd
import requests as rq
from bs4 import BeautifulSoup
url="http://tieba.baidu.com/hottopic/browse/topicList?res_type=1"

def res_caputure():
    try:
        res = rq.get(url,timeout=30)
        res.raise_for_status()
        res.encoding = res.apparent_encoding
        return res.text
    except:
        return "发生异常,响应码为{}".format(res.status_code)
    
if __name__ == "__main__":
    r = res_caputure()
    soup = BeautifulSoup(r)
    a = soup.select(\'a[target]\')
    p = soup.select(\'span\')
    soup_p=[]
    soup_a=[]
    s=input("输入要查看百度贴吧话题热议榜单的条数(直接回车默认为10条,最高为30):")
    
    if s==\'\':
        s=10
    else:
        s=int(s)
        
    for k in range(3,s*2+3,2):
        soup_p.append(p[k].string)
    for i in range(0,s):
        soup_a.append(a[i].string)
    dt={\'排名\':range(1,s+1),\'标题\':soup_a,\'内容数\':soup_p}
    df=pd.DataFrame(dt)
    print(df)

 

可自定义查看条数,按回车确定,不输入默认为10条

演示如下: