执行git commit命令不小心进入了VI/VIM，怎么退出？

参考链接http://stackoverflow.com/questions/19085807/please-enter-a-commit-message-to-explain-why-this-merge-is-necessary-especially

在vi模式下输入

To solve this:

press "i"
write your merge message
press "esc"
write ":wq"
then press enter

"i" is for "insert", "esc" is the exit the insertion, and ":wq" is just "write" and "quit".