什么是新闻源网站指数查询
对于新手做Python爬虫来说是有点难处的，前期练习的时候可以直接套用模板，这样省时省力还很方便。
使用Python爬取某网站的相关数据，并保存到同目录下Excel。
直接上代码：
import re
import urllib.error
import urllib.requestimport xlwt
from bs4 import BeautifulSoupdef main():baseurl ="http://jshk.com.cn"datelist = getDate(baseurl)savepath=".\jshk.xls"saveDate(datelist,savepath)# askURL("http://jshk.com.cn/")findlink = re.compile(r'<a href="(.*?)">')
findimg = re.compile(r'<img.*src="(.*?)"',re.S)
findtitle = re.compile(r'<span class="title">(.*)</span')
findrating = re.compile(r'<span class="rating_num" property="v:average">(.*)</span')
findjudge = re.compile(r'<span>(d*)人评价</span>')
findinq= re.compile(r'<span class="inq">(.*)</span>')def getDate(baseurl):datalist =[]for i in range(0,10):url=baseurl+str(i*25)html=askURL(url)soup = BeautifulSoup(html,"html.parser")for item in soup.find_all('div',class_="item"):data = []item = str(item)link = re.findall(findlink,item)[0]data.append(link)img=re.findall(findimg,item)[0]data.append(img)title=re.findall(findtitle,item)[0]rating=re.findall(findrating,item)[0]data.append(rating)judge=re.findall(findjudge,item)[0]data.append(judge)inq=re.findall(findinq,item)if len(inq)!=0:inq=inq[0].replace("。","")data.append(inq)else:data.append(" ")print(data)datalist.append(data)print(datalist)return datalistdef askURL(url):head = { "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36"}request=urllib.request.Request(url,headers=head)html=""try:response=urllib.request.urlopen(request)html=response.read().decode("utf-8")# print(html)except urllib.error.URLError as e:if hasattr(e,"code"):print(e.code)if hasattr(e,"reason"):print(e.reason)return htmldef saveDate(datalist,savepath):workbook = xlwt.Workbook(encoding='utf-8')worksheet = workbook.add_sheet('电影',cell_overwrite_ok=True)col =("电影详情","图片","影片","评分","评价数","概况")for i in range(0,5):worksheet.write(0,i,col[i])for i in range(0,250):print("第%d条" %(i+1))data=datalist[i]for j in range(0,5):worksheet.write(i+1,j,data[j])workbook.save(savepath)if __name__ == '__main__':main()print("爬取完毕")
直接复制粘贴就行。
若要更改爬取网站，则需要更改URL以及相应的html格式（代码中的“item”）。