问题
I didn't change any setting of my Vim, but today the Backspace gets some crazy behavior. Every time when I hit it, it does not delete a character, but prints ^?. Anyone knows what is going on?
回答1:
Not sure why it would randomly start doing this based on the information you gave, but trying adding this line to your .vimrc
set backspace=start,eol,indent
回答2:
The problem comes from the communication between Mac Terminal the Linux Terminal.
Go to the Mac Terminal -> Preferences -> Advanced tab, check the option "Delete sends Ctrl-H". Then after I login to Linux, and Backspace works just fine in Vim.
回答3:
In Mac Mavricks and Yosemite Open a terminal, then command+, for preferences, click on the profile tab, click on the -keyboard- menu, then add +
Key: very bottom, <= Delete
Modifier: ^ Control
Action: Send Text
Text: H
click Ok
来源：https://stackoverflow.com/questions/8844427/odd-behavior-of-backspace-in-vim-ssh-to-linux-from-mac