我一直在试图弄清楚为什么我的语法突出显示在 Neovim 中无法工作两天了。
我在我的 sysinit.vim 中包含了“syntax on”以及“filetype plugin indent on”，当我运行 nvim 时我没有收到任何错误。
当我执行“echo $VIMRUNTIME”时，我得到了正确的目录（我想。我使用自制软件进行安装。路径是 usr/local/Cellar/neovim/0.1.7/share/nvim/runtime）。我已验证该文件夹中确实存在语法文件夹。
但是，当我在 neovim 中时，除了用于尾随空白的红色块之外，我没有得到任何突出显示。如果我运行 ":syntax" 它会识别正确的语法（用 python 测试）。我发现的另一个奇怪现象是，当我在编辑器中运行“:syntax on”时，颜色会变深。如果我把它关掉，什么都不会改变。由于在 init.vim 文件中启用了语法，我不知道为什么会改变编辑器的外观。
我正在用头撞墙。请帮忙！我的 init.vim 在下面。这是一项正在进行的工作！
" Disables Vi compatibility. Vi compatibility mode disables some modern Vim Features.
set nocompatible
" Enables filetype detection, filetype-specific scripts (ftplugins),
" and filetype-specific indent scripts.
filetype plugin indent on
syntax on " Turns on syntax highlighting
set ruler " Show row and column ruler information
set number " Show line numbers
set spelllang=en " Enable spell-checking
set softtabstop=4 " Number of spaces per tab
set title " Set the terminal title to the current file
set visualbell " Turn on the visual bell
set cursorline " Highlight the line under the cursor
set hidden " Hide inactive buffers
set ttimeoutlen=0 " Eliminate delay when switching modes
set expandtab " Converts tabs into spaces
" Lazyredraw attempts to solve Vim lag by reducing processing required. When
" enabled, any action that is not typed will not cause the screen to redraw.
set lazyredraw
" Faster redrawing
set ttyfast
" Don't display the current mode in the status line.
" This info is already displayed in the Airline status bar.
set noshowmode
inoremap jj <esc> " Remaps the esc key to 'jj'
inoremap jk <esc> " Remaps the esc key to 'jk'
" Disabling all of the cursor keys
nnoremap <up> <nop>
nnoremap <down> <nop>
nnoremap <left> <nop>
nnoremap <right> <nop>
inoremap <up> <nop>
inoremap <down> <nop>
inoremap <left> <nop>
inoremap <right> <nop>
" Changes the cursor shape. (Flashing pipe in insert mode, block in normal node.)
let $NVIM_TUI_ENABLE_CURSOR_SHAPE=1
" Colors and Theme Options
set termguicolors " Enables "True Color" support
silent! colorscheme gruvbox " Sets the color scheme, if present
set background=dark " Sets the default background to dark mode
let g:gruvbox_contrast_dark="hard" " Changes dark mode contrasts. Possible values are soft, medium, and hard. Default is medium
let g:gruvbox_contrast_light="hard" " Changes light mode contrasts. Possible values are soft, medium, and hard. Default is medium
let g:gruvbox_italicize_comments=1 " Enables italics for comments
let g:gruvbox_italicize_strings=1 " Enables italics for strings