CTRL+Z,JOBS,FG command usage in vim

Example: VI test.c
CTRL + Z stops the test.c of VI open and goes to the background
and open a VI buf.c.
CTRL + Z stops the BUF.C of VI open and goes to the background
The task list is now visible through jobs
Switch tasks with FG + number
Such as:
root:~/data/worksspace$ Jobs
[1]-has stopped VI test.c
[2]+ has stopped VI BUF.C
[Email protected]:~/data/testspace$ FG 1
VI test.c
At this point the VI open test.c to the foreground, you can stop Ctrl + Z and go to the background

CTRL+Z,JOBS,FG command usage in vim