爬虫贴吧

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 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36'}

    def get_url_list(self):# 1.构造url列表
        # url_list = []
        # for i in range(1000):
        #     url_list.append(self.url_temp.format(i*50))
        # return url_list
        return [self.url_temp.format(i*50) for i in range(1000)]

    def parse_url(self,url):# 发送请求，获取响应
        print(url)
        response = requests.get(url,headers=self.headers)
        return response.content.decode()

    def save_html(self,html_str,page_num):#保存html字符串
        file_path = '{}-第{}页.html'.format(self.tieba_name,page_num)
        with open(file_path,'w',encoding='utf-8') as f:
            f.write(html_str)

    def run(self): #实现主要逻辑
        #1.构造url列表
        url_list = self.get_url_list()
        #2.遍历，发送请求，获取响应
        for url in url_list:
            html_str = self.parse_url(url)
            # 3.保存
            page_num = url_list.index(url)+1 #页码数
            self.save_html(html_str,page_num)

if __name__ == '__main__':
    tieba_spider = TiebaSpider('李毅')
    tieba_spider.run()