丝路通:数据采集与缓存

参考Python爬虫案例：使用Selenium爬取中国制造网、利用Pandas清洗csv数据完成数据爬取和清洗

获得如下数据：

行号，页码，一级分类，二级分类，三级分类，图片地址，商品名称，商品价格，商品单位，商家名称，商家链接，国家，经营年份，描述词,网站名称,数量(1)

1,1,Apparel_Textiles & Accessories,Apparel,Apparel Design Services,//s.alicdn.com/@sc01/kf/H50cfdfc8a6c4445ab6f3a926a2542c00t.jpg_300x300.jpg,embroidery digitizing service 24h on line,1,Unit,Shen Zhen Happitoo Textile Co._ Ltd.,//happitoo.en.alibaba.com/company_profile.html#top-nav-bar,China,1,Apparel Design Apparel_Textiles Accessories Services
2,1,Apparel_Textiles & Accessories,Apparel,Apparel Design Services,//s.alicdn.com/@sc01/kf/He32d24711ba34240aa7f12fa9150ca32Y.jpg_300x300.jpg,women t shirts graphic custom t shirt printing with 100%cotton and can printed logo,3.9,Piece,Shandong Shanke Clothing Co._ Ltd.,//sdshanke.en.alibaba.com/company_profile.html#top-nav-bar,China,1,Apparel Design Apparel_Textiles Accessories Services
3,1,Apparel_Textiles & Accessories,Apparel,Apparel Design Services,//s.alicdn.com/@sc01/kf/UTB8pn_mX22JXKJkSanrq6y3lVXab.jpg_300x300.jpg,waist coat,16,Piece,RUBY ENTERPRISES,//rubythobes.trustpass.alibaba.com/company_profile.html#top-nav-bar,India,4,Apparel Design Apparel_Textiles Accessories Services
4,1,Apparel_Textiles & Accessories,Apparel,Apparel Design Services,//s.alicdn.com/@sc01/kf/HTB130uRakH0gK0jSZPiq6yvapXab.jpg_300x300.jpg,Latest Fashion Design Mens Dress Multi Plaids Shirts,3,Piece,Zhejiang Meihu Dress Co._ Ltd.,//manshirt88.en.alibaba.com/company_profile.html#top-nav-bar,China,10,Apparel Design Apparel_Textiles Accessories Services
5,1,Apparel_Textiles & Accessories,Apparel,Apparel Design Services,//s.alicdn.com/@sc01/kf/H0eb12da137754d608809e1e6324201ddq.jpg_300x300.jpg,[Free Sample] Yoga Leggings Set Apparel Design Services Slight Customize Compression Leggings,9.88,Piece,Guangzhou Huayan Electronics Technology Co._ Ltd.,//flowerbeauty.en.alibaba.com