你好，这将安装任何东西。
(base) mi@adib:~$ sudo apt install gnupg software-properties-common
[sudo] password for mi:
Reading package lists... Done
Building dependency tree
Reading state information... Done
gnupg is already the newest version (2.2.19-3ubuntu2).
software-properties-common is already the newest version (0.98.9.3).
The following packages were automatically installed and are no longer required:
libgsl23 libgslcblas0 libjs-leaflet libqgis-3d3.16.2 libqgis-analysis3.16.2
libqgis-app3.16.2 libqgis-app3.16.3 libqgis-core3.16.2 libqgis-gui3.16.2
libqgis-native3.16.2 libqgis-server3.16.2 libqgispython3.16.2 libqt5charts5
qgis-common qml-module-qtcharts r-cran-mathjaxr
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and …