gVIM如何换成全英文并用UTF-8格式

set nocompatible
behave mswin

set guifont=courier_new:h12
set nu!
set encoding=utf-8
set termencoding=utf-8
set fileencodings=utf-8
set fileencoding=utf-8
set fileformats=unix,dos
set browsedir=buffer
filetype indent on
set autoindent
set smartindent
set backupdir=d:\vim_back_files
set autochdir

set history=1024

let $lang=‘en_us‘

source $vimruntime/vimrc_example.vim
source $vimruntime/mswin.vim
set confirm
set syntax=on
set nocp
set mouse=a
setlocal noswapfile bomb
set laststatus=2
set autoread
colo torte
set statusline=[%n]%<%f%y%h%m%r%=[%b\ 0x%b]\ %l\ of\ %l,%c%v\ page\ %n\ %p