77 lines
2.1 KiB
Python
77 lines
2.1 KiB
Python
#!/usr/bin/env python
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# -*- coding:utf-8 -*-
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# Author: yiliyas
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# Date: 2022.5.18
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import re
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from urllib import request
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# 1.获取数据
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def get_html(url):
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# https 模拟浏览器头
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headers = {'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.75 Safari/537.36'}
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req = request.Request(url,headers=headers)
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response=request.urlopen(req)
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# 根据实际地址修改字符集
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content=response.read().decode('utf-8')
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return content
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# 2.处理数据（设置匹配条件）
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def get_url(content):
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# 根据地址不同，判断设置不同的匹配条件
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pattern = re.compile('<li><div.*?><a href=\'(.*?)\'.*?>(.*?)</a></div><div.*?>(.*?)</div></li>',re.S)
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items = re.findall(pattern,content)
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return items
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# 3.显示数据
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def show_result(items):
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# 根据地址不同，判断设置不同的匹配条件
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for item in items:
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curl = item[0]
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cname = item[1]
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# 生成完整的链接地址
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if str(cname).find('次')>-1:
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curl=str(curl).replace('./','/')
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curl = 'http://www.cnnic.net.cn/hlwfzyj/hlwxzbg'+str(curl)
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strs = cname+'|'+curl
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# 显示链接信息
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print(strs)
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# 下载数据
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get_file(curl)
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# 4.下载数据（写入文件）
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def get_file(url):
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file_name = url.split('/')[-1]
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# 设置下载路径（根据实际情况修改）
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file_names='E:/download/'+file_name
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req = request.Request(url)
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u = request.urlopen(req)
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f = open(file_names, 'wb')
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block_sz = 8192
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while True:
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buffer = u.read(block_sz)
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if not buffer:
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break
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f.write(buffer)
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f.close()
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print ("Sucessful to download" + " " + file_names)
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# 下载1~37次
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for i in range(1,7):
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url = 'http://www.cnnic.net.cn/hlwfzyj/hlwxzbg/index_'+str(i)+'.htm'
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# 获取信息
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html = get_html(url)
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# 获取下载地址
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items = get_url(html)
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# 下载显示数据
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show_result(items)
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# 下载38~49次
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url = 'http://www.cnnic.net.cn/hlwfzyj/hlwxzbg/index.htm'
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html = get_html(url)
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items = get_url(html)
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show_result(items)
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