syntax on
set showmode
set showcmd
set mouse=a
set encoding=utf-8
set t_Co=256
filetype indent on
set autoindent
set tabstop=4
set shiftwidth=4
set expandtab
set softtabstop=4
set number
set cursorline
set textwidth=80
set wrap
set ruler
set showmatch
set hlsearch
set incsearch
set ignorecase
set smartcase
set spell spelllang=en_us
set nobackup
set noswapfile
参考：https://www.ruanyifeng.com/blog/2018/09/vimrc.html
https://www.ruanyifeng.com/blog/2018/09/vimrc.html