爬去网页通用流程

这样看着虽然很麻烦，但是爬取网页都离不开这四个步骤，以后如果爬取更复杂的网页内容，只需要在这个基础上添加内容就ok了。

import requests
class Qiushi:
    #  初始化函数
    def __init__(self,name):
        self.name = name
        self.url_base = 'https://www.qiushibaike.com/8hr/page/{}/'
        self.headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0'}

    def make_url(self):
        """
        生成下载连接列表
        :return:
        """
        #爬取糗事百科的前十页
        return [self.url_base.format(i) for i in range(1,11)]
    def download(self,url_str):
        """
        通过requests.get()方法下载指定页面，获得页面结果
        :param url_str:
        :return:
        """
        result = requests.get(url_str,headers=self.headers)
        return result.content
    def  save_content(self,html_content,page_num):
        """
        以html 形式存储下载内容
        :param html_content:
        :param page_num:
        :return:
        """
        # 先创建download文件夹，然后把爬取的内容存储在download文件里
        file_name = './download/'+'{}--第{}页.html'.format(self.name,page_num)
        with  open(file_name,'wb') as fb:
            fb.write(html_content)
    def run(self):
        """
        下载主线程，实现主要逻辑
        :return:
        """
        #  获取到所有的链接
        url_lists = self.make_url()
        for url in url_lists:
            html_content = self.download(url)
            #  获取到对应页数
            page_num = url_lists.index(url)+1
            self.save_content(html_content,page_num)
if  __name__=='__main__':
    qiushi= Qiushi('糗事百科')
    qiushi.run()

爬取成功后的结果