how to chanage the file of scrapy to csv or json file， we used the commond that is "scrapy crawl 【parse_file_name】 -o 【filename】+ .json/.csv"
Waring: the project of scrapy.cfg of default project name must parallel the scrapy.cfg，than we can use the after command to create the file of json or csv
原文：https://www.cnblogs.com/future-dream/p/9736144.html