How do I use  instead of  in VIM? I have been searching for a while, but i still can't get it work.

I add :map &lt;C-6&gt; &lt;C-1&gt; or :map &lt;C-1&gt; &lt;C-6&gt; to '.vimrc', but it doesn't work.
If you use vim in iTerm 2, try to map control-1 to 0x1e (C-^).