Windows下，用管理员权限打开文件：

C:\Program Files (x86)\Vim\_vimrc

添加下面的代码：

set encoding=utf-8
set fileencodings=utf-8,chinese,latin-1
if has("win32")
set fileencoding=chinese
else
set fileencoding=utf-8
endif
"解决菜单乱码
source $VIMRUNTIME/delmenu.vim
source $VIMRUNTIME/menu.vim
"解决consle输出乱码
language messages zh_CN.utf-8

set autoindent
set shiftwidth=4
set tabstop=4
set softtabstop=4
set expandtab
set hlsearch
set nobackup
set encoding=utf-8
set noundofile
colo darkblue
set guifont=consolas:h14