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：

<code>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"code>

saveDate(datelist,savepath)

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

findlink = re.compile(r'<a href="(.*?)">')code>

findimg = re.compile(r'<img.*src="(.*?)"',re.S)code>

findtitle = re.compile(r'<span class="title">(.*)</span')code>

findrating = re.compile(r'<span class="rating_num" property="v:average">(.*)</span')code>

findjudge = re.compile(r'<span>(\d*)人评价</span>')

findinq= re.compile(r'<span class="inq">(.*)</span>')code>

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"):code>

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=""code>

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')code>

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”）。