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爱奇艺的缓存是怎么实现的!下载一个电影,退出app(不是进入后台),一段时间(几分钟之后)重新打开app,关闭程序之间下载的数据依然存在!求思路!NSURLSession可以实现后台(app没有退出)下载,但无法实现app退出之后的下载记录!
认证0级讲师
认证0级讲师