return {
  {
    -- lsp的config
    "neovim/nvim-lspconfig",
    config = function ()
      require'lspconfig'.lua_ls.setup(require('lsp.lua'))
    end
  },
  {
    -- lsp 下载器
    "williamboman/mason.nvim",
    config = function()
      require("mason").setup({})
    end
  },
  {
    -- lsp补全
    'hrsh7th/cmp-nvim-lsp', -- { name = 'nvim_lua' }
    'hrsh7th/cmp-buffer',   -- { name = 'buffer' },
    'hrsh7th/cmp-path',     -- { name = 'path' }
    'hrsh7th/cmp-cmdline',  -- { name = 'cmdline' }
    'hrsh7th/vim-vsnip',
    'hrsh7th/cmp-vsnip',
    {
      'onsails/lspkind-nvim',
      config = function()
        require('lspkind').init({
            mode = 'symbol_text',
            preset = 'codicons',
            symbol_map = {
              Text = "󰉿",
              Method = "󰆧",
              Function = "󰊕",
              Constructor = "",
              Field = "󰜢",
              Variable = "󰀫",
              Class = "󰠱",
              Interface = "",
              Module = "",
              Property = "󰜢",
              Unit = "󰑭",
              Value = "󰎠",
              Enum = "",
              Keyword = "󰌋",
              Snippet = "",
              Color = "󰏘",
              File = "󰈙",
              Reference = "󰈇",
              Folder = "󰉋",
              EnumMember = "",
              Constant = "󰏿",
              Struct = "󰙅",
              Event = "",
              Operator = "󰆕",
              TypeParameter = "",
            },
        })
      end
    },
    {
      "hrsh7th/nvim-cmp",
      config = function()
        local has_words_before = function()
          unpack = unpack or table.unpack
          local line, col = unpack(G.api.nvim_win_get_cursor(0))
          return col ~= 0 and G.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match('%s') == nil
        end
        local feedkey = function(key, mode)
          vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, true, true), mode, true)
        end
        local cmp     = require('cmp')
        local lspkind = require('lspkind')
        cmp.setup {
          snippet = {
            expand = function(args)
              vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
            end,
          },
          sources = cmp.config.sources({
            { name = 'vnsip'},
            { name = 'nvim_lsp' },
            { name = 'buffer' },
            { name = 'path' },
            { name = 'cmdline' },
          }),
          mapping = cmp.mapping.preset.insert({
            ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
            ["<Tab>"] = cmp.mapping(function(fallback)
              if cmp.visible() then
                cmp.select_next_item()
              elseif vim.fn["vsnip#available"](1) == 1 then
                feedkey("<Plug>(vsnip-expand-or-jump)", "")
              elseif has_words_before() then
                cmp.complete()
              else
                fallback()
              end
            end, { "i", "s" }),

            ["<S-Tab>"] = cmp.mapping(function()
              if cmp.visible() then
                cmp.select_prev_item()
              elseif vim.fn["vsnip#jumpable"](-1) == 1 then
                feedkey("<Plug>(vsnip-jump-prev)", "")
              end
            end, { "i", "s" }),

          }),
          window = {
            completion = {
              winhighlight = "Normal:Pmenu,FloatBorder:Pmenu,Search:None",
              col_offset   = -3,
              side_padding = 0,
            },
          },
          fomatting = {
            format = lspkind.cmp_format({
              mode = 'symbol',
              maxwidth = 50,
              ellipsis_char = '...',
              before = function (_, vim_item)
                return vim_item
              end
            })
          },
        }
      end,
  },
  {
  -- 语法高亮
  'nvim-treesitter/nvim-treesitter',
  config = function()
    require'nvim-treesitter.configs'.setup{
      -- A list of parser names, or "all" (the four listed parsers should always be installed)
      ensure_installed = {},

      indent = { enable = true },
      -- Install parsers synchronously (only applied to `ensure_installed`)
      sync_install = false,

      -- Automatically install missing parsers when entering buffer
      -- Recommendation: set to false if you don't have `tree-sitter` CLI installed locally
      auto_install = true,

      -- List of parsers to ignore installing (for "all")
      -- ignore_install = { "javascript" },

      ---- If you need to change the installation directory of the parsers (see -> Advanced Setup)
      -- parser_install_dir = "/some/path/to/store/parsers", -- Remember to run vim.opt.runtimepath:append("/some/path/to/store/parsers")!

      highlight = {
        -- `false` will disable the whole extension
        enable = true,

        -- NOTE: these are the names of the parsers and not the filetype. (for example if you want to
        -- disable highlighting for the `tex` filetype, you need to include `latex` in this list as this is
        -- the name of the parser)
        -- list of language that will be disabled
        -- disable = { "c", "rust" },
        -- Or use a function for more flexibility, e.g. to disable slow treesitter highlight for large files
        disable = function(lang, buf)
            local max_filesize = 100 * 1024 -- 100 KB
            local ok, stats = pcall(G.loop.fs_stat, G.api.nvim_buf_get_name(buf))
            if ok and stats and stats.size > max_filesize then
                return true
            end
        end,

        -- Setting this to true will run `:h syntax` and tree-sitter at the same time.
        -- Set this to `true` if you depend on 'syntax' being enabled (like for indentation).
        -- Using this option may slow down your editor, and you may see some duplicate highlights.
        -- Instead of true it can also be a list of languages
        additional_vim_regex_highlighting = false,
      },
      parsers = {
        html = {
          install_info = {
              url = "https://github.com/ikatyang/tree-sitter-vue",
              files = {"src/parser.c"},
              branch = "main"
          }
        }
      }
    }
  end
  },
 }
}