init.vim

set nocompatible            " disable compatibility to old-time vi
set showmatch               " show matching 
set ignorecase              " case insensitive 
set mouse=v                 " middle-click paste with 
set hlsearch                " highlight search 
set incsearch               " incremental search
set tabstop=4               " number of columns occupied by a tab 
set softtabstop=4           " see multiple spaces as tabstops so <BS> does the right thing
set expandtab               " converts tabs to white space
set shiftwidth=4            " width for autoindents
set autoindent              " indent a new line the same amount as the line just typed
set number                  " add line numbers
set wildmode=longest,list   " get bash-like tab completions
set cc=80                  " set an 80 column border for good coding style
filetype plugin indent on   "allow auto-indenting depending on file type
syntax on                   " syntax highlighting
set mouse=a                 " enable mouse click
set clipboard=unnamedplus   " using system clipboard
filetype plugin on
set cursorline              " highlight current cursorline
set ttyfast                 " Speed up scrolling in Vim
" set spell                 " enable spell check (may need to download language package)
" set noswapfile            " disable creating swap file
" set backupdir=~/.cache/vim " Directory to store backup files.
call plug#begin('~/.vim/plugged')
  " Plugin Section
  Plug 'dracula/vim'
  Plug 'ryanoasis/vim-devicons'
  Plug 'SirVer/ultisnips'
  Plug 'honza/vim-snippets'
  Plug 'scrooloose/nerdtree'
  Plug 'preservim/nerdcommenter'
  Plug 'mhinz/vim-startify'
  Plug 'neoclide/coc.nvim', {'branch': 'release'}
call plug#end()
" Move line or visually selected block - alt+j/k
inoremap <A-j> <Esc>:m .+1<CR>==gi
inoremap <A-k> <Esc>:m .-2<CR>==gi
vnoremap <A-j> :m '>+1<CR>gv=gv
vnoremap <A-k> :m '<-2<CR>gv=gv

" Move split panes to left/bottom/top/right
nnoremap <A-h> <C-W>H
nnoremap <A-j> <C-W>J
nnoremap <A-k> <C-W>K
nnoremap <A-l> <C-W>L

" Move between panes to left/bottom/top/right
nnoremap <C-h> <C-w>h
nnoremap <C-j> <C-w>j
nnoremap <C-k> <C-w>k
nnoremap <C-l> <C-w>l

" Press i to enter insert mode, and ii to exit insert mode
inoremap ii <Esc>
inoremap jk <Esc>
inoremap kj <Esc>
vnoremap jk <Esc>
vnoremap kj <Esc>
" Open file in a text by placing text and gf
nnoremap gf :vert winc f<CR>

" Copies filepath to clipboard by pressing yf
nnoremap <silent> yf :let @+=expand('%:p')<CR>

" Copies pwd to clipboard: command yd
nnoremap <silent> yd :let @+=expand('%:p:h')<CR>

" Vim jump to the last position when reopening a file
if has("autocmd")
  au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$")
    \| exe "normal! g'\"" | endif
endif
" Use <Tab> and <S-Tab> to navigate through popup menu
inoremap <silent><expr> <Tab> pumvisible() ? "\<C-n>" : "\<Tab>"
inoremap <silent><expr> <S-Tab> pumvisible() ? "\<C-p>" : "\<S-Tab>"

" Make <CR> select the current completion
inoremap <silent><expr> <CR> pumvisible() ? coc#_select_confirm() : "\<CR>"

" Use K to show documentation in preview window
nnoremap <silent> K :call <SID>show_documentation()<CR>

function! s:show_documentation()
  if CocAction('hasProvider', 'hover')
    call CocActionAsync('doHover')
  else
    call feedkeys('K', 'in')
  endif
endfunction
" 设置 colorcolumn 的位置
set colorcolumn=80

" 自定义高亮设置，将 colorcolumn 颜色改为绿色
highlight ColorColumn ctermbg=green guibg=green