python3.7简单的爬虫,具体代码如下所示:
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#Python 爬虫介绍
import urllib.parse import urllib.request from http import cookiejar url = "http://www.baidu.com" response1 = urllib.request.urlopen(url) print ( "第一种方法" ) #获取状态码,200表示成功 print (response1.getcode()) #获取网页内容的长度 print ( str (response1.read())) print ( len (response1.read())) print ( "第二种方法" ) request = urllib.request.Request(url) #模拟Mozilla浏览器进行爬虫 request.add_header( "user-agent" , "Mozilla/5.0" ) response2 = urllib.request.urlopen(request) print (response2.getcode()) print ( len (response2.read())) print ( "第三种方法" ) cookie = cookiejar.CookieJar() #加入urllib2处理cookie的能力# opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cookie)) urllib.request.install_opener(opener) response3 = urllib.request.urlopen(url) print (response3.getcode()) print ( len (response3.read())) print (cookie) |
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code: https: / / github.com / pascal19821003 / python path: python / study / tutorial / pachong / 1.py |
总结
以上所述是小编给大家介绍的python3.7简单的爬虫实例详解,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
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原文链接:https://www.cnblogs.com/pascal1000/p/10849621.html