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w3xue网站的支持!
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