diff --git a/init.lua b/init.lua
index f840f19..18bbcab 100644
--- a/init.lua
+++ b/init.lua
@@ -17,6 +17,7 @@ require("plugin-config/nvim-autopairs")
 require("plugin-config/table-mode")
 require("plugin-config/project")
 require("plugin-config/dashboard")
+require("plugin-config/JABS")
 require("plugin-config/toggleterm")
 require("plugin-config/coderunner")
 require("plugin-config/lazygit")
diff --git a/lua/basic.lua b/lua/basic.lua
index 9d7f4de..b4b7218 100644
--- a/lua/basic.lua
+++ b/lua/basic.lua
@@ -10,7 +10,7 @@ M.load_default_options = function()
 		fileencoding = "utf-8", -- the encoding written to a file
 		foldmethod = "manual", -- folding, set to "expr" for treesitter based folding
 		foldexpr = "", -- set to "nvim_treesitter#foldexpr()" for treesitter based folding
-		guifont = "monospace:h17", -- the font used in graphical neovim applications
+		guifont = "Menlo:h17", -- the font used in graphical neovim applications
 		background = "dark", -- set the background to light or dark
 		hidden = true, -- required to keep multiple buffers and open multiple buffers
 		hlsearch = true, -- highlight all matches on previous search pattern
diff --git a/lua/keybindings.lua b/lua/keybindings.lua
index ef676d5..3cf0d4d 100644
--- a/lua/keybindings.lua
+++ b/lua/keybindings.lua
@@ -48,6 +48,7 @@ wk.register({
 		name = "+File",
 		p = { ":Telescope projects<CR>", "Open project" },
 		r = { ":Telescope oldfiles<CR>", "Recent files" },
+		f = { ":Telescope file_browser<CR>", "File browser" },
 		n = { ":enew<CR>", "New file" },
 	},
 })
@@ -84,7 +85,7 @@ map("v", "<", "<gv", opt)
 map("v", ">", ">gv", opt)
 
 -- nvimTree
-map("n", "n", ":NvimTreeToggle<CR>", opt)
+map("n", "T", ":NvimTreeToggle<CR>", opt)
 
 -- Packer
 wk.register({
@@ -102,9 +103,8 @@ wk.register({
 		name = "+Buffer",
 		k = { ":bd!<CR>", "Kill buffer" },
 		o = { ":BufferLineCloseRight<CR>:BufferLineCloseLeft<CR>", "Close other buffer" },
-		b = { ":bp<CR>", "Last buffer" },
+		b = { ":JABSOpen<CR>", "Open buffers" },
 		n = { ":ls<CR>", "Buffer numbers" },
-		t = { ":b ", "To buffer" },
 		c = { ":noh<CR>", "Cancel highlight" },
 	},
 })
diff --git a/lua/lsp/cmp.lua b/lua/lsp/cmp.lua
index 9c7c414..8cdcbc5 100644
--- a/lua/lsp/cmp.lua
+++ b/lua/lsp/cmp.lua
@@ -1,6 +1,5 @@
 local lspkind = require("lspkind")
 local cmp = require("cmp")
-
 cmp.setup({
 	-- 指定 snippet 引擎
 	snippet = {
@@ -78,3 +77,6 @@ require("lsp_signature").setup(signature_config)
 local cmp_autopairs = require("nvim-autopairs.completion.cmp")
 
 cmp.event:on("confirm_done", cmp_autopairs.on_confirm_done({ map_char = { tex = "" } }))
+
+-- use friendly snippet
+require("luasnip.loaders.from_vscode").lazy_load()
diff --git a/lua/lsp/config/gopls.lua b/lua/lsp/config/gopls.lua
new file mode 100644
index 0000000..15bdd57
--- /dev/null
+++ b/lua/lsp/config/gopls.lua
@@ -0,0 +1,21 @@
+return {
+	on_setup = function(server)
+		server.setup({
+			flags = {
+				debounce_text_changes = 150,
+			},
+			on_attach = function(client, bufnr)
+				-- 禁用格式化功能，交给专门插件插件处理
+				client.server_capabilities.document_formatting = false
+				client.server_capabilities.document_range_formatting = false
+
+				-- local function buf_set_keymap(...)
+				--   vim.api.nvim_buf_set_keymap(bufnr, ...)
+				-- end
+				-- local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end
+				-- 绑定快捷键
+				-- require("keybindings").mapLSP(buf_set_keymap)
+			end,
+		})
+	end,
+}
diff --git a/lua/lsp/init.lua b/lua/lsp/init.lua
index fdf65dd..3b1c0a6 100644
--- a/lua/lsp/init.lua
+++ b/lua/lsp/init.lua
@@ -5,26 +5,27 @@ local lspconfig = require("lspconfig")
 -- key 必须为下列网址列出的 server name，不可以随便写
 -- https://github.com/williamboman/nvim-lsp-installer#available-lsps
 local servers = {
-  sumneko_lua = require("lsp.config.lua"), -- lua/lsp/config/lua.lua
-  clangd = require("lsp.config.clangd"),
-  -- bashls = require("lsp.config.bash"),
-  pyright = require("lsp.config.pyright"),
-  -- html = require("lsp.config.html"),
-  -- cssls = require("lsp.config.css"),
-  -- emmet_ls = require("lsp.config.emmet"),
-  -- jsonls = require("lsp.config.json"),
-  -- tsserver = require("lsp.config.ts"),
-  -- rust_analyzer = require("lsp.config.rust"),
-  -- yamlls = require("lsp.config.yamlls"),
-  -- remark_ls = require("lsp.config.markdown"),
+	sumneko_lua = require("lsp.config.lua"), -- lua/lsp/config/lua.lua
+	clangd = require("lsp.config.clangd"),
+	gopls = require("lsp.config.gopls"),
+	-- bashls = require("lsp.config.bash"),
+	pyright = require("lsp.config.pyright"),
+	-- html = require("lsp.config.html"),
+	-- cssls = require("lsp.config.css"),
+	-- emmet_ls = require("lsp.config.emmet"),
+	-- jsonls = require("lsp.config.json"),
+	-- tsserver = require("lsp.config.ts"),
+	-- rust_analyzer = require("lsp.config.rust"),
+	-- yamlls = require("lsp.config.yamlls"),
+	-- remark_ls = require("lsp.config.markdown"),
 }
 
 for name, config in pairs(servers) do
-  if config ~= nil and type(config) == "table" then
-    -- 自定义初始化配置文件必须实现on_setup 方法
-    config.on_setup(lspconfig[name])
-  else
-    -- 使用默认参数
-    lspconfig[name].setup({})
-  end
+	if config ~= nil and type(config) == "table" then
+		-- 自定义初始化配置文件必须实现on_setup 方法
+		config.on_setup(lspconfig[name])
+	else
+		-- 使用默认参数
+		lspconfig[name].setup({})
+	end
 end
diff --git a/lua/lsp/null-ls.lua b/lua/lsp/null-ls.lua
index f4f1d14..28c675b 100644
--- a/lua/lsp/null-ls.lua
+++ b/lua/lsp/null-ls.lua
@@ -14,6 +14,7 @@ require("null-ls").setup({
 	sources = {
 		require("null-ls").builtins.formatting.stylua,
 		require("null-ls").builtins.formatting.clang_format,
+		require("null-ls").builtins.formatting.gofmt,
 	},
 	-- you can reuse a shared lspconfig on_attach callback here
 	on_attach = function(client, bufnr)
diff --git a/lua/plugin-config/JABS.lua b/lua/plugin-config/JABS.lua
new file mode 100644
index 0000000..bb9cde3
--- /dev/null
+++ b/lua/plugin-config/JABS.lua
@@ -0,0 +1 @@
+require("jabs").setup({})
diff --git a/lua/plugin-config/telescope.lua b/lua/plugin-config/telescope.lua
index 0d430ef..73435d0 100644
--- a/lua/plugin-config/telescope.lua
+++ b/lua/plugin-config/telescope.lua
@@ -1,32 +1,46 @@
-require('telescope').setup{
-  defaults = {
-    -- Default configuration for telescope goes here:
-    -- config_key = value,
-    mappings = {
-      i = {
-        -- map actions.which_key to <C-h> (default: <C-/>)
-        -- actions.which_key shows the mappings for your picker,
-        -- e.g. git_{create, delete, ...}_branch for the git_branches picker
-        ["<C-h>"] = "which_key"
-      }
-    }
-  },
-  pickers = {
-    -- Default configuration for builtin pickers goes here:
-    -- picker_name = {
-    --   picker_config_key = value,
-    --   ...
-    -- }
-    -- Now the picker_config_key will be applied every time you call this
-    -- builtin picker
-  },
-  extensions = {
-    -- Your extension configuration goes here:
-    -- extension_name = {
-    --   extension_config_key = value,
-    -- }
-    -- please take a look at the readme of the extension you want to configure
-  }
-}
+require("telescope").setup({
+	defaults = {
+		-- Default configuration for telescope goes here:
+		-- config_key = value,
+		mappings = {
+			i = {
+				-- map actions.which_key to <C-h> (default: <C-/>)
+				-- actions.which_key shows the mappings for your picker,
+				-- e.g. git_{create, delete, ...}_branch for the git_branches picker
+				["<C-h>"] = "which_key",
+			},
+		},
+	},
+	pickers = {
+		-- Default configuration for builtin pickers goes here:
+		-- picker_name = {
+		--   picker_config_key = value,
+		--   ...
+		-- }
+		-- Now the picker_config_key will be applied every time you call this
+		-- builtin picker
+	},
+	extensions = {
+		file_browser = {
+			theme = "ivy",
+			-- disables netrw and use telescope-file-browser in its place
+			hijack_netrw = true,
+			mappings = {
+				["i"] = {
+					-- your custom insert mode mappings
+				},
+				["n"] = {
+					-- your custom normal mode mappings
+				},
+				-- Your extension configuration goes here:
+				-- extension_name = {
+				--   extension_config_key = value,
+				-- }
+				-- please take a look at the readme of the extension you want to configure
+			},
+		},
+	},
+})
 
-require('telescope').load_extension('projects')
+require("telescope").load_extension("projects")
+require("telescope").load_extension("file_browser")
diff --git a/lua/plugins.lua b/lua/plugins.lua
index ac9c64f..3d5f1f5 100644
--- a/lua/plugins.lua
+++ b/lua/plugins.lua
@@ -60,6 +60,9 @@ return require("packer").startup(function()
 	-- 顶部状态栏
 	use({ "akinsho/bufferline.nvim", requires = "kyazdani42/nvim-web-devicons" })
 
+	-- 更方便的切换buffer
+	use({ "matbme/JABS.nvim" })
+
 	-- treesitter
 	use({
 		"nvim-treesitter/nvim-treesitter",
@@ -68,15 +71,18 @@ return require("packer").startup(function()
 		end,
 	})
 
+	---------------------  file related -------------------------------
 	-- telescope
 	use({
 		"nvim-telescope/telescope.nvim",
 		requires = { { "nvim-lua/plenary.nvim" } },
 	})
 
+	-- telescope-file-browser
+	use({ "nvim-telescope/telescope-file-browser.nvim" })
+
 	-- project
 	-- 项目管理
-	-- Lua
 	use({
 		"ahmedkhalf/project.nvim",
 	})
diff --git a/readme.md b/readme.md
index f9f767f..761611c 100644
--- a/readme.md
+++ b/readme.md
@@ -35,7 +35,7 @@
 ### 常用
 | key            | function                                  |
 |----------------|-------------------------------------------|
-| n              | 打开nvim-tree文件浏览                     |
+| T              | 打开nvim-tree文件浏览                     |
 | f              | 打开telescope进行文件查找                 |
 | Ctrl-h         | 切换到左标签栏                            |
 | Ctrl-l         | 切换到右标签栏                            |
@@ -73,12 +73,18 @@
 | \<leader>dc | 清理断点  |
 | \<leader>dr | 开始debug |
 | \<Ctrl-n>   | step into |
-| \<Ctrl-o>    | step over |
-
-
-
-
-
+| \<Ctrl-o>   | step over |
+
+### buffer
+| key         | function       |
+|-------------|----------------|
+| \<leader>bb | 打开某个buffer |
+| \<leader>bk | 关闭当前buffer |
+
+## 问题
+
+### 根据文件类型启动某些功能
+可以在ftplugin文件夹中放入对应文件类型的lua文件,如markdown.lua对应markdown文件.写入要执行的命令即可.例子可见ftplugin/markdown中启动markdown table mode