采用了scrapy框架爬取链家网二手房的数据，可以导入到数据库中保存数据(Using the scrapy fr a me to climb the data of the second-hand house of the chain home network, it can be imported into the database to save the data)

该代码用于爬取链家网的房屋价格，位置，单价，总价等相关数据(This code is used to crawl the house price data of Lianjia network)