The text of the modified column pattern in Vim is the increment ordinal of ABCD or 1234

Add in VIMRC

Vnoremap <F3>: <c-u>call <sid>addcharofcursor () <CR>

"Incrementing characters in column mode
function! S:addcharofcursor ()
Let C = col ('. ')
Let L = line ('. ')
Let L0 = line ("' <")
Let L1 = line ("' >")
Let char0 = Strpart (Getline ('. '), c-1,1)
for k in range (1, l1-l0) "Starting at line 2nd
Let Str_before = Strpart (Getline (l+k), 0,c-1)
Let Str_after = Strpart (Getline (l+k), c)
If Char0 =~ ' \d '
Let char1 = Char0 + K
Else
Let char1 = Nr2char (CHAR2NR (char0) +k)
endif
Call Setline (L+k, Str_before char1. Str_after)
ENDfor
Endfunction

Column Select a, press F3, you can change to the right.

If it is 1, the number is incremented, but the number is 9

Friendly reminder: If the letter exceeds Z, the character after the Ascⅱ code will appear.

The text of the modified column pattern in Vim is the increment ordinal of ABCD or 1234