如果你修改了一个文件，想要在不退出Vim和不保存的情况下关闭它，你应该输入:bd!

bufkill。vim插件添加了BD等，在不关闭任何分割的情况下删除缓冲区(就像BD一样)。

:[N]bd[elete][!]                        *:bd* *:bdel* *:bdelete* *E516*
:bd[elete][!] [N]
                Unload buffer [N] (default: current buffer) and delete it from
                the buffer list.  If the buffer was changed, this fails,
                unless when [!] is specified, in which case changes are lost.
                The file remains unaffected.  Any windows for this buffer are
                closed.  If buffer [N] is the current buffer, another buffer
                will be displayed instead.  This is the most recent entry in
                the jump list that points into a loaded buffer.
                Actually, the buffer isn't completely deleted, it is removed
                from the buffer list |unlisted-buffer| and option values,
                variables and mappings/abbreviations for the buffer are
                cleared.

在.vimrc文件中插入以下内容，按下F4，将关闭当前文件。

:map <F4> :bd<CR>

如果你的Vim窗口中有多个分割窗口，那么:bd关闭当前文件的分割窗口，所以我喜欢使用一些更高级的东西:

map fc <Esc>:call CleanClose(1)

map fq <Esc>:call CleanClose(0)


function! CleanClose(tosave)
if (a:tosave == 1)
    w!
endif
let todelbufNr = bufnr("%")
let newbufNr = bufnr("#")
if ((newbufNr != -1) && (newbufNr != todelbufNr) && buflisted(newbufNr))
    exe "b".newbufNr
else
    bnext
endif

if (bufnr("%") == todelbufNr)
    new
endif
exe "bd".todelbufNr
endfunction

:bd可以被映射。我把它映射到F4, Shift-F4如果我需要强制关闭因为一些我不想要的改变。