VIM keyboard mapping uses the terminal’s hotkey

  question, vim

The keyboard mapping I wrote failed, and vim is using bash’s hotkey.
This is what led my vim to do now.
In insert mode
Ctrl-w deletes a word before the cursor
Ctrl-L typed l
CTRL-J line feed

How can I use keyboard mapping for normal configuration?
My vim has two plug-ins, youcompleteme and vundle.
My system is ubuntu gnome

My own vimrc is like this

"Basic Settings
 set nu
 set tabstop=4
 set bg=dark
 set expandtab
 set cursorline
 set softtabstop=4
 set hls
 set shiftwidth=4
 set fdm=syntax
 set foldlevelstart=99
 set autoindent
 au filetype c,cpp set cindent
 "Keyboard mapping
 map <S-Right> <Esc>:tabn<CR>
 imap <S-Right> <Esc>:tabn<CR>i
 map <S-Left>  <ESC>:tabp<CR>
 imap <S-Left>  <ESC>:tabp<CR>i
 map <C-o>     <Esc>:tabnew
 imap <C-o>     <Esc>:tabnew
 map <F5>      <Esc>:w<CR>:!  g++ % -o %<<CR>
 imap <F5>      <Esc>:w<CR>:!  g++ % -o %<<CR>
 map <C-F5>    <Esc>:w<CR>:!  g++ % -o %< && ./%<<CR>
 imap <C-F5>    <Esc>:w<CR>:!  g++ % -o %< && ./%<<CR>
 map <C-s>   <Esc>:w<CR>
 imap <C-s>  <Esc>:w<CR>i
 map <C-w> <Esc>:wq<CR>
 imap <C-w> <Esc>:wq<CR>
 "Color
 set t_Co=256
 color darkburn
 "vundle settings
 set nocompatible
 set backspace=2
 filetype off                  " required!
 set rtp+=~/.vim/bundle/vundle/
 call vundle#rc()
 " let Vundle manage Vundle
 " required!
 Bundle 'gmarik/vundle'
 " My bundles here:
 " original repos on GitHub
 Bundle 'Valloric/YouCompleteMe'
 "Bundle 'tpope/vim-fugitive'
 "Bundle 'Lokaltog/vim-easymotion'
 "Bundle 'rstacruz/sparkup', {'rtp': 'vim/'}
 "Bundle 'tpope/vim-rails.git'
 " vim-scripts repos
 "Bundle 'L9'
 "Bundle 'FuzzyFinder'
 " non-GitHub repos
 "Bundle 'git://git.wincent.com/command-t.git'
 " Git repos on your local machine (i.e. when working on your own plugin)
 "Bundle 'file:///Users/gmarik/path/to/plugin'
 "  ...
 filetype plugin indent on     " required!
 "YCM settings
 Set completeopt=longest,menu "Turn off preview of completion
 Letg: ycm _ global _ ycm _ extra _ conf =' ~/.ycm _ extra _ conf.py' "default configuration
 Let g:ycm_confirm_extra_conf = 0 "no manual confirmation required

I haven’t made any changes to bash’s configuration file.
Ask how to set up this problem to solve it.

The keyboard mapping I wrote failed, and vim is using bash’s hotkey.
This is what led my vim to do now.
In insert mode
Ctrl-w deletes a word before the cursor
Ctrl-L typed l
CTRL-J line feed

This is just a coincidence. In fact vim does not use bash’s hotkey, but its own default hotkey. Please refer to the help document.:h i_CTRL-w. The correct approach here is to usenoremapTo override the default hotkey.

noremap <C-w> <Esc>:wq<CR>
 inoremap <C-w> <Esc>:wq<CR>

Other key combinations are similar.Ctrl-w is an important hotkey for window navigation by default, which is not recommended by individuals.

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