python编写爬虫爬取先知社区文章

python编写爬虫爬取先知社区文章的标题、标题链接、作者、作者链接、文章分类、发布时间、评论数（O(∩_∩)O哈哈~初级小白，暂时没用正则表达式）

import requests
'''爬取全部'''
'''创建个函数输入先知的页数'''

def paqu_xianzhi(n):
    for k in range(1,n+1):
        r = requests.get('https://xz.aliyun.com?page={}'.format(k))
        response = r.text
        #print(response)
        table1 = response.find('')
        #print(table1)
        table2 = response.find('')
        #print(table2)
        contents = response[table1:table2]
        div = contents.split('')
        print('Page{}'.format(k))
        with open ('b.txt','a',encoding='UTF-8') as file:
                file.write('Page{}'.format(k)+'\n')
        #print(div[i]) #1-30 30个标题
        for i in range(1,31):    
            #继续分片 用') + 2
            title2 = div2[j].find('')
            title = div2[j][title1:title2].strip()
            print('标题:'+ title)

            #取标题连接
            title_link1 = div2[j].find('href="') + 6
            title_link2 = div2[j].find('">')
            title_link = div2[j][title_link1:title_link2]
            print('标题链接为：https://xz.aliyun.com' + title_link)
            j += 1

            #作者
            author1 = div2[j].find('">') + 2
            author2 = div2[j].find('')
            author = div2[j][author1:author2]
            print('作者为：' + author)

            #作者链接
            author_link1 = div2[j].find('href="') + 6
            author_link2 = div2[j].find('">')
            author_link = div2[j][author_link1:author_link2]
            print('作者链接为：https://xz.aliyun.com' + div2[j][author_link1:author_link2])
            j += 1

            #文章发布时间
            time1 = div2[j].find('/ 2') + 2
            time2 = time1 + 10
            time = div2[j][time1:time2]
            print('发布时间为：'+ time)
            #分类
            article_type1 = div2[j].find('">') + 2
            article_type2 = div2[j].find('')
            article_type = div2[j][article_type1:article_type2]
            print('该文章属于:'+ article_type)
            #评论数量
            comment_number1 = div2[j].find('text-center ">') + 14
            comment_number2 = div2[j].find('')
            comment_number = div2[j][comment_number1:comment_number2]
            print('该文章评论数为：'+ comment_number)
            #写入文件
            with open ('b.txt','a',encoding='utf-8') as file:
                file.write('-'*50+'\n')
                file.write('标题:'+ title+'\n')
                file.write('标题链接为：https://xz.aliyun.com' + title_link+'\n')
                file.write('作者为：' + author+'\n')
                file.write('作者链接为：https://xz.aliyun.com' + div2[j][author_link1:author_link2]+'\n')
                file.write('发布时间为：'+ time+'\n')
                file.write('该文章属于:'+ article_type+'\n')
                file.write('该文章评论数为：'+ comment_number+'\n')

        print('-'*50)

n =int(input('请输入要爬取的前几页：\n'))
paqu_xianzhi(n)