MacVIM快捷方式打开NERDTree，但是当我输入：vs时，它将显示NERDTree的两列。 那么如何在.vimrc中设置？

Question

当我用<learder>g',then Stick打开NERDTree时<learder>g',then Stick在vim中使用<learder>g',then Stick ：vs'

所以我想让Vim只显示一列NERDTree，如何设置？

" set NERDTree

autocmd StdinReadPre * let s:std_in=1

autocmd VimEnter * if argc() == 1 && isdirectory(argv()[0]) && !exists("s:std_in") | exe 'NERDTree' argv()[0] | wincmd p | ene | exe 'cd '.argv()[0] | endif

let mapleader = ','

nnoremap <C-l> gt

nnoremap <C-h> gT

nnoremap <leader>v :NERDTreeFind<cr>

nnoremap <leader>g :NERDTreeToggle<cr>

let NERDTreeShowHidden = 1

let NERDTreeIgnore = [
            \'\.git$', '\.pyc$','\~$','\.swp$', '\.DS_Store',
            \ '\.hg$', '\.svn$', '\.stversions$', '\.pyo$',
            \ '\sass-cache$', '__pycache__$', '\.egg-info$',
            \ '\.ropeproject$','\.idea$']