vim.g.mapleader = " "
vim.g.maplocalleader = " "
local map = vim.api.nvim_set_keymap
local opt = {noremap = true, silent = true}
-- 开启目录树
map('n', '<leader>o', ':NvimTreeOpen<CR>', opt)
-- 关闭目录树
map('n', '<leader>c', ':NvimTreeClose<CR>', opt)