python3.7简单的爬虫实例详解
python3.7简单的爬虫,具体代码如下所示:
#https://www.runoob.com/w3cnote/python-spider-intro.html #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)
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【听图阁-专注于Python设计】网站的支持!
如果你觉得本文对你有帮助,欢迎转载,烦请注明出处,谢谢!