听说你们写毕业设计没有动态数据？Python 教你一步完成!

import requests # 返送请求 pip install requests import parsel # html页面解析器 pip install  parsel  import  csv # 文本保存

url = "http://www.maomijiaoyi.com/index.php?/chanpinliebiao_pinzhong_37_"+str(i)+"--24.html"    headers = {        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.72 Safari/537.36'    }    data = requests.get(url=url, headers=headers).text    selector = parsel.Selector(data)    urls = selector.css('div .content:nth-child(1) a::attr(href)').getall()

 for s in regionAndURL:        url = "http://www.maomijiaoyi.com" + s[0]        address = s[1]        data = requests.get(url=url, headers=headers).text        selector = parsel.Selector(data)        title = selector.css('.detail_text .title::text').get().strip()  ## 标签        price = selector.css('.info1 span:nth-child(2)::text').get().strip()  ## 价格        viewsNum = selector.css('.info1 span:nth-child(4)::text  ').get()  ## 浏览次数        commitment = selector.css('.info1 div:nth-child(2) span::text  ').get().replace("卖家承诺: ", "")  # 卖家承诺        onlineOnly = selector.css('.info2 div:nth-child(1) .red::text  ').get()  # 在售只数        variety = selector.css('.info2 div:nth-child(3) .red::text  ').get()  # 品种        prevention = selector.css('.info2 div:nth-child(4) .red::text  ').get()  # 预防        contactPerson = selector.css('.user_info div:nth-child(1) .c333::text  ').get()  # 联系人姓名        phone = selector.css('.user_info div:nth-child(2) .c333::text  ').get()  ## 电话        shipping = selector.css('.user_info div:nth-child(3) .c333::text  ').get().strip()  # 运费        purebred = selector.css('.item_neirong div:nth-child(1) .c333::text').get().strip()  # 是否纯种        quantityForSale = selector.css('.item_neirong div:nth-child(3) .c333::text').get().strip()  # 待售数量        catSex = selector.css('.item_neirong div:nth-child(4) .c333::text').get().strip()  # 猫咪性别        catAge = selector.css('div.xinxi_neirong .item:nth-child(2)  div:nth-child(2) .c333::text').get().strip()  # 猫咪年龄        dewormingSituation = selector.css(            'div.xinxi_neirong .item:nth-child(2)  div:nth-child(3) .c333::text').get().strip()  # 驱虫情况        canWatchCatsInVideo = selector.css(            'div.xinxi_neirong .item:nth-child(2)  div:nth-child(4) .c333::text').get().strip()  # 可视频看猫咪

f = open('喵咪.csv', mode='a', encoding='utf-8', newline='')
csvHeader = csv.DictWriter(f,                           fieldnames=['地区', '标签', '价格', '浏览次数', '卖家承诺', '在售只数', '地区', '品种', '预防', '联系人姓名', '电话',                                       '运费', '是否纯种', '待售数量', '猫咪性别', '猫咪年龄', '驱虫情况', '可视频看猫咪', '详情地址'])#设置头csvHeader.writeheader()
  dis = {            '地区': address,            '标签': title,            '价格': price,            '浏览次数': viewsNum,            '卖家承诺': commitment,            '在售只数': onlineOnly,            '品种': variety,            '预防': prevention,            '联系人姓名': contactPerson,            '电话': phone,            '运费': shipping,            '是否纯种': purebred,            '待售数量': quantityForSale,            '猫咪性别': catSex,            '猫咪年龄': catAge,            '驱虫情况': dewormingSituation,            '可视频看猫咪': canWatchCatsInVideo,            '详情地址': url        }        csvHeader.writerow(dis)