原文链接：https://vim.fandom.com/wiki/Increasing_or_decreasing_numbers
In normal mode, typing Ctrl-A will increment the next number, and typing Ctrl-X will decrement the next number. The number can be at the cursor, or to the right of the cursor (on the same line). These are the defaults for Vim, although some scripts remap these keys to perform other functions.
column increasing
Ctrl-A
column decreasing
Ctrl-X
