python爬取免费代理链接

https://www.kuaidaili.com/free/

代码如下：

import requests
from bs4 import BeautifulSoup

# 获取网站数据
def get_data(url):
    headers = {
        'user-agent': 'Mozilla/5.0'
    }
    html = requests.get(url, headers)
    html.encoding = 'utf-8'
    return html.text
# 解析网站数据
def parse_dara(html):
    soup = BeautifulSoup(html, 'html.parser')
    '''
        protocol = soup.find_all(attrs={'data-title': '类型'})
        ip = soup.find_all(attrs={'data-title': 'IP'})
        port = soup.find_all(attrs={'data-title': 'PORT'})
    '''
    # 协议 地址 端口
    protocol = soup.select('#list > table > tbody > tr > td:nth-child(4)')
    ip = soup.select('#list > table > tbody > tr > td:nth-child(1)')
    port = soup.select('#list > table > tbody > tr > td:nth-child(2)')
    data = []       # 存放代理链接
    for i in range(0, len(ip)):          # 要求len(ip), len(port) len(protocol)的值一样
        temp = protocol[i].get_text()+'://'+ip[i].get_text()+':'+port[i].get_text()     # 拼接成url
        data.append(temp)                                                               # 拼接后的数据，加入到列表
    return data

# 保存数据
def save_data(data):
    for item in data:
        with open('output\'+proxy, 'a+') as f:
            f.write(item)
            f.write('
')

if __name__=='__main__':
    proxy = 'proxy.txt'
    url = 'https://www.kuaidaili.com/free/inha/1'
    html = get_data(url)
    data = parse_dara(html)
    save_data(data)
    print('爬虫结束')

结果：

 只爬了第一页的代理，其他几页，加个循环就解决了。