爬虫实例学习——爬取酷狗TOP500数据

 1 import requests
 2 from bs4 import BeautifulSoup
 3 import time
 4 
 5 headers ={
 6     ‘User-Agent‘:‘Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36 QIHU 360EE‘
 7           }    #加入请求头，伪装成浏览器，以便更好抓取数据
 8 
 9 def get_info(url):           #定义获取信息的函数
10     wb_data = requests.get(url,headers = headers)
11     soup = BeautifulSoup(wb_data.text,‘lxml‘)
12     ranks = soup.select(‘span.pc_temp_num‘)                     #selet()方法见下面图示
13     titles = soup.select(‘#rankWrap > div.pc_temp_songlist > ul > li > a‘)  
14     times = soup.select(‘span.pc_temp_tips_r > span‘)
15     for rank,title,time in zip(ranks,titles,times):
16         data = {
17             ‘rank‘:rank.get_text().strip(),                #歌曲序号
18             ‘singer‘:title.get_text().split(‘-‘)[0],       #歌手名称
19             ‘song‘:title.get_text().split(‘-‘)[1],         #歌曲名称
20             ‘time‘:time.get_text().strip()                 #歌曲时长
21         }         
22         print (data)     
23         
24 if __name__ == ‘__main__‘:                #程序主入口
25     urls = [‘https://www.kugou.com/yy/rank/home/{}-8888.html?from=rank‘.format(str(i)) for i in range(1,24)]            #构建多页url，500条结果需23组，每页网页22条
26     for url in urls:
27         get_info(url)
28         time.sleep(1)            #暂停程序，避免因提交网页请求频率过快而导致程序异常终止