vim的使用极简版：

跳页 ctrl w-hjkl: left, lower, upper, right

分页 ctrl w-vs: horizontal split, vertical split.

Tab切换：
gt: next tab
gT: prior tab
1gt: first tab

Ref:

https://linuxhint.com/how-to-use-vim-split-screen/

https://superuser.com/questions/410982/in-vim-how-can-i-quickly-switch-between-tabs