Modify the Vim editor to automatically display line number indentation

1. Temporary modification

in the vi ,set tabstop=4 or Set ts=4

2. Permanent modification

VI--version Viewing the files to be modified

if it is vim words, modify ~/.VIMRC

if it is VI, modify ~/.EXRC

Plus: Set tabstop=4

Set nu//Display line number

Set Nonu//Do not display line numbers

3. VI/ROOT/.BASHRC

Join: alias Vi=vim

4. Set expandtab// put tab Convert to Spaces

set shiftwidth=4//when auto-indenting, indent by this much. " 1 "

Set softtabstop=4//make Vim treat <Tab> key as 4 spaces, but respect hard Tabs.

Set ignorecase//Ignore case

Modify the Vim editor to automatically display line number indentation