Some useful tips in VIM

: Ls list the buffer list

: Buffer #
Open the file in the corresponding buffer area code
: Bnext
: Bprevious
: Bfirst
: Blast

: Pwd
Show Current Directory

: CD directory name
Change current directory

: E file name
Create a file in the current directory

: Wa
Save all named Buffers

: E.
Open the directory list. This plug-in is amazing and powerful. There are several common commands:
C. Set the directory you browsed to the current directory.
R: rename a file
D. delete an object.

Enter the GF command on the header file. Vim searches for and opens the file. If the header file is not in this directory

: Set path + = directory name.