命令:
scrapy bench:测试电脑性能
scrapy startproject [projectname]:创建项目
scrapy genspider [spidername] [doman 爬虫域名地址]: 创建爬虫
scrapy crawl [spidername]:运行爬虫

命令:
scrapy bench:测试电脑性能
scrapy startproject [projectname]:创建项目
scrapy genspider [spidername] [doman 爬虫域名地址]: 创建爬虫
scrapy crawl [spidername]:运行爬虫