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Python笔记 之 使用urllib.request访问网页

程序员文章站 2022-05-03 21:33:49
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Python代码

代码下载

import urllib.request

defaultsite = 'fashion.sina.com.cn'
defaultpage = '/s/tr/2021-01-26/1845/doc-ikftssap0645087.shtml'
defaultlines = 20

def getfile():
    #等待输入
    site = input('Enter host => ').strip()
    if not site:
        site = defaultsite
    page = input('Enter page => ').strip()
    if not page:
        page = defaultpage
    print('Site :',site,'\n',
          'Page :',page)

    #拼接URL
    url = 'https://%s%s'%(site,page)
    print('URL : ',url)

    #获取网页数据
    file = urllib.request.urlopen(url)
    lines = file.readlines()
    file.close()
    for line in lines[:defaultlines]:
        print(line.decode('utf-8'))

if __name__ == '__main__':
    getfile()

运行结果

Enter host => 
Enter page => 
URL :  https://blog.csdn.net/weixin_50648794?spm=1010.2135.3001.5343
Enter filename(default directory "./") => 
Scheme : https 
 Server : blog.csdn.net 
 Path : /weixin_50648794 
 Parms : /weixin_50648794 
 Query : spm=1010.2135.3001.5343 
 Frag : 
Site : blog.csdn.net 
 Page : /weixin_50648794?spm=1010.2135.3001.5343 
 File : weixin_50648794


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