https://blog.csdn.net/yhx956058885/article/details/107359184?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param
解决Android10读取不到/sdcard/、/storage/emulated/0/文件的问题
原文：https://www.cnblogs.com/mataiyuan/p/13648421.html