log不打印在控制台
scrapy crawl [spider_name] -s LOG_FILE=spider.log
scrapy crawl or runspider 区别：https://blog.csdn.net/mouday/article/details/88549031
log不打印在控制台
scrapy crawl [spider_name] -s LOG_FILE=spider.log
scrapy crawl or runspider 区别：https://blog.csdn.net/mouday/article/details/88549031