更改缓冲区时VIM丢失撤消历史记录https://cloud.tencent.com/develop

https://cloud.tencent.com/developer/ask/115418

还可以添加持久撤消，这将使VIM存储您的撤消，即使通过重新启动：

" Persistent undo
set undofile
set undodir=$HOME/.vim/undo
set undolevels=1000
set undoreload=10000

编辑-Via@sanbor：

别忘了做mkdir ~/.vim/undo否则维姆不会为你做的。