按Ctrl+Alt+F1，从图形界面切换到命令行模式
$ gnome-terminal
$ ls /usr/lib/python3/dist-packages/gi/
$ cd /usr/lib/python3/dist-packages/gi/
$ sudo cp _gi.cpython-35m-x86_64-linux-gnu.so _gi.cpython-36m-x86_64-linux-gnu.so
$ sudo cp _gi_cairo.cpython-35m-x86_64-linux-gnu.so _gi_cairo.cpython-36m-x86_64-linux-gnu.so
按Ctrl+Alt+F7，从命令行模式切换到图形界面
