问题
I use a Dvorak keyboard layout, and so I've made a few adjustments to the default VIM mappings-- one change I've made is to remap the right-side home row keys to
noremap d h
noremap h j
noremap t k
noremap n l
So that movement keys are conveniently positioned, as they would be for a QWERTY user. h, t, and n do their job fine and are very responsive. d, however, lags for a moment before moving left the way its supposed to. I think this is because there are key-sequence commands that start with d (like dd for delete line), so VIM is waiting to receive the second stroke in the sequence before executing the command for just a single 'd'. I've remapped dd:
noremap dd hh
But this isn't doing the trick. Yet commands for things like d3w or d$ (text objects after d) aren't working (after remapping d), so they couldn't be causing the issue. Anyone know how to get rid of the lag? BTW, even after disabling all plugins I have the same issues. I also have no other mappings with d in my vimrc.
回答1:
AFAIK, d, c and their "operator pending" friends are not really mappings. This means that you can't :unmap d. The delay you experience can't really be avoided without side effects, I believe.
You might want to play with :h timeout and :h timeoutlen.
For what it's worth, the alternative layouts/Vim story is… complicated. And not settled at all.
来源：https://stackoverflow.com/questions/12322998/eliminating-lag-when-remapping-d-key-in-vim