my vim

set nu
set cindent
set smartindent
set cursorline
set showcmd
set completeopt=preview,menu
set autowrite
set magic
set tabstop=4
set softtabstop=4
set shiftwidth=4
set noexpandtab
set smarttab
set langmenu=zh_CN.UTF-8
set helplang=cn
set mouse=a
set selection=exclusive
set selectmode=mouse,key
set clipboard+=unnamed