import requests

class TiebaSpider:

    def __init__(self, tieba_name):

        self.tieba_name = tieba_name

        self.url_temp = " https://tieba.baidu.com/f?kw=" + tieba_name + "&ie=utf-8&pn={}"

        self.headers = {

            "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36"

        }

    def get_url_list(self):

        """构造url列表"""

        return [self.url_temp.format(i * 50) for i in range(50)]

    def parse_url(self, url):

        """发送请求 获取响应"""

        print(url)

        response = requests.get(url=url, headers=self.headers)

        return response.content

    def save_html(self, html_str, page_num):

        # 构建文件名

        file_path = "{}第{}页.html".format(self.tieba_name, page_num)

        with open(file_path, "wb") as f:

            f.write(html_str)

    def run(self):

        """实现主要逻辑"""

        url_list = self.get_url_list()

        # 遍历请求

        for url in url_list:

            html_str = self.parse_url(url=url)

            # 构建页码

            page_num = url_list.index(url) + 1

            # 创建html文件

            self.save_html(html_str, page_num)

if __name__ == '__main__':

    tieba_spider = TiebaSpider("lol")

    tieba_spider.run()