https://docs.microsoft.com/zh-cn/windows/win32/api/shlobj_core/nf-shlobj_core-shchangenotifyregister
https://docs.microsoft.com/zh-cn/windows/win32/api/fileapi/nf-fileapi-findfirstchangenotificationa
https://docs.microsoft.com/zh-cn/windows/win32/api/winbase/nf-winbase-readdirectorychangesw
实际上我没用过