diff --git a/init.lua b/init.lua
index 49c72a9..8dd9dbd 100644
--- a/init.lua
+++ b/init.lua
@@ -23,6 +23,7 @@ if not G.loop.fs_stat(lazypath) then
 
 end
 
+
 G.opt.rtp:prepend(lazypath)
 
 require("keymap")
@@ -32,6 +33,7 @@ if G.g.vscode then
 else
   require("options")
   require("lazy").setup(require('plugs'))
+require("lazy").lockfile =  G.fn.stdpath("data") .. "/lazy/lazy-lock.json"
 end
 
 
diff --git a/lua/G.lua b/lua/G.lua
index 2615c00..c878293 100644
--- a/lua/G.lua
+++ b/lua/G.lua
@@ -13,11 +13,29 @@ G.cgp  = vim.nvim_create_augroup
 
 function G.map(maps)
     for _,map in pairs(maps) do
-        vim.keymap.set(map[1], map[2], map[3], map[4])
+        if #map == 3 then
+          vim.keymap.set(map[1], map[2], map[3], {noremap = true})
+        elseif #map == 4 then
+          vim.keymap.set(map[1], map[2], map[3], map[4])
+        else
+          print("太多变量了")
+        end
         --G.api.nvim_set_keymap(map[1], map[2], map[3], map[4])
     end
 end
 
+function G.delmap(maps)
+    for _,map in pairs(maps) do
+      if #map == 2 then
+        vim.keymap.del(map[1], map[2], {})
+      elseif #map == 3 then
+        vim.keymap.del(map[1], map[2], map[3])
+      else
+        print("太多变量了")
+      end
+    end
+end
+
 function G.cmd(cmd)
     G.api.nvim_command(cmd)
 end
diff --git a/lua/plugs.lua b/lua/plugs.lua
index 242babd..c8bc787 100644
--- a/lua/plugs.lua
+++ b/lua/plugs.lua
@@ -1,3 +1,4 @@
+
 return {
 
   'github/copilot.vim',            -- github copilot
diff --git a/lua/plugs/nvimtree.lua b/lua/plugs/nvimtree.lua
index 09080b9..880b3b3 100644
--- a/lua/plugs/nvimtree.lua
+++ b/lua/plugs/nvimtree.lua
@@ -1,22 +1,31 @@
 return {
   'kyazdani42/nvim-web-devicons',
   {
-    'https://git.qyhhh.top/newbieQQ/nvim-tree.lua',
+    "nvim-tree/nvim-tree.lua",
     config = function ()
-      G.map({
-        {"n", "<c-e>", ":NvimTreeToggle<CR>", {noremap = true}},
-      })
+
       require'nvim-tree'.setup {
         sort_by = "case_sensitive",
-        view    = { width    = 30, },
+        view = {
+          width = 30,
+        },
         filters = { dotfiles = true, },
         git     = { enable   = true },
---        on_attach = my_on_attach,
+        on_attach = function (bufnr)
+          local api = require'nvim-tree.api'
+          api.config.mappings.default_on_attach(bufnr)
+
+          -- override a default
+          G.delmap({
+            {'n', '<C-e>', { buffer = bufnr }},
+          })
+
+        end
       }
-
+      G.map({
+        {"n", "<C-e>", ":NvimTreeToggle<CR>", { noremap = true }},
+      })
     end
-
   }
-
 }