为什么我导出的jason和csv内容都是空的，什么都没有？

我跑出来的最后几行和老师的也不一样？什么原因呢？

{'downloader/request_bytes': 590,

 'downloader/request_count': 2,

 'downloader/request_method_count/GET': 2,

 'downloader/response_bytes': 21357,

 'downloader/response_count': 2,

 'downloader/response_status_count/200': 1,

 'downloader/response_status_count/301': 1,

 'finish_reason': 'finished',

 'finish_time': datetime.datetime(2019, 6, 22, 14, 41, 25, 109484),

 'log_count/DEBUG': 2,

 'log_count/INFO': 9,

 'memusage/max': 44929024,

 'memusage/startup': 44929024,

 'response_received_count': 1,

 'scheduler/dequeued': 2,

 'scheduler/dequeued/memory': 2,

 'scheduler/enqueued': 2,

 'scheduler/enqueued/memory': 2,

 'start_time': datetime.datetime(2019, 6, 22, 14, 41, 19, 501577)}

2019-06-22 22:41:25 [scrapy.core.engine] INFO: Spider closed (finished)