(1) 下载相应软件包，放在 ~/.vim/bundle/
如下：
ll ~/.vim
drwxrwxr-x 4 xxx Nov 15 14:16 bundle/
ll ~/.vim/bundle/
drwxrwxr-x 9 xxx 4096 Feb 27 2024 nerdtree/
drwxrwxr-x 5 xxx 4096 Apr 28 2014 Vundle.vim/
(2) 编辑~/.vimrc
set encoding=utf-8
set nu
set hlsearch
set autoindent
set backup
set ruler
syntax on
" Change Search highlight
" Optionally set the visual mode
highlight Visual ctermfg=black ctermbg=grey
set background=dark
colorscheme default
highlight Search ctermfg=black ctermbg=lightgreen
set ts=4
set expandtab
%retab!
filetype indent on
set autoindent shiftwidth=4
set nocompatible " be iMproved, required
filetype off " required
" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" let Vundle manage Vundle, required
" Keep Plugin commands between vundle#begin/end.
" 安装其它插件
Plugin 'VundleVim/Vundle.vim'
Plugin 'preservim/nerdtree'
call vundle#end() " required
filetype plugin indent on " required
" 打开 NERDTree
map <C-n> :NERDTree<CR>
" 切换 NERDTree
map <C-n> :NERDTreeToggle<CR>
