rz
https://blog.csdn.net/qq_39953750/article/details/103223332?utm_medium=distribute.pc_aggpage_search_result.none-task-blog-2allfirst_rank_v2~rank_v25-10-103223332.nonecase&utm_term=mac%20rz%20%E5%91%BD%E4%BB%A4%E4%B8%8A%E4%BC%A0%E4%B8%8D%E6%88%90%E5%8A%9F
https://www.programmersought.com/article/4008109781/
https://blog.csdn.net/piaoxuefengqi/article/details/47081489
Linux中chmod -R 递归修改文件权限的操作
rz上传文件，弹出选择文件框，点击文件之后，如果ll未成功，可能是没有权限
