https://space.bilibili.com/523606542

import requests  # 第三方模块
import parsel
import time  # 时间模块

import requests  # 第三方模块
import parsel
import time  # 时间模块


def check_ip(proxies_list):
    """检测代理ip的可用性"""

    use_proxy = []
    for ip in proxies_list:
        try:
            response = requests.get(url='https://www.baidu.com', proxies=ip, timeout=2)
            if response.status_code == 200:
                use_proxy.append(ip)
        except Exception as e:
            print('当前代理ip: ', ip, '请求超时, 检测不合格!!!')
        else:
            print('当前代理ip: ', ip, '检测通过')

    return use_proxy


proxy_list = []

for page in range(1, 11):
    time.sleep(0.5)
    print(f'==================正在抓取第{page}页数据================')
    # 1.确定数据所在地址<url>(分析网页性质<静态网页\动态网页>)
    url = f'http://www.ip3366.net/?stype=1&page={page}'
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36'}

    # 2.发送网络请求
    response = requests.get(url=url, headers=headers)
    html_data = response.text  # str
    # print(html_data)

    # 3.解析数据
    # 3.1 转换数据类型
    selector = parsel.Selector(html_data)
    # 3.2 数据提取
    trs = selector.xpath('//table[@class="table table-bordered table-striped"]/tbody/tr')  # tr

    """
    # 代理ip的结构
        proxies_dict = {
            "http": "http://" + ip:端口,
            "https": "http://" + ip:端口,
        }
    """

    for tr in trs:
        ip_num = tr.xpath('./td[1]/text()').get()
        ip_port = tr.xpath('./td[2]/text()').get()
        # print(ip_num, ip_port)

        ip_proxy = ip_num + ':' + ip_port
        # print(ip_proxy)

        proxies_dict = {
            'http': "http://" + ip_proxy,
            'https': "https://" + ip_proxy
        }

        # 4.数据的保存
        proxy_list.append(proxies_dict)
        print('保存成功:', proxies_dict)

print(proxy_list)
print('获取到的代理ip数量: ', len(proxy_list))

print('============================正在检测代理===================================')
can_use = check_ip(proxy_list)
print('可用代理:', can_use)
print('可用代理数量:', len(can_use))