Python爬虫完整代码拿走不谢

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.request

import xlwt
from bs4 import BeautifulSoup

def main():

baseurl ="http://jshk.com.cn"

datelist = getDate(baseurl)
savepath=".\\jshk.xls"
saveDate(datelist,savepath)

# askURL("http://jshk.com.cn/")

findlink = re.compile(r'')
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 datalist

def 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 html

def 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”）。