如何设置打开文件时默认展开？
在我的 .vimrc 中，我放置了 set Foldmethod=syntax 来启用方法折叠等。但是，我不喜欢每次打开文件时的默认设置整个东西都折叠起来了。有没有办法启用 foldmethod，但打开文件时文件会展开？
In my .vimrc I've put set foldmethod=syntax to enable folding of methods etc. However, I don't like the default that everytime I open a file, the whole thing is folded. Is there a way to enable foldmethod, yet have files unfolded when I open them?
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无论使用何种折叠方法，都应打开所有折叠。
foldlevel=0全部折叠，foldlevel=1仅部分折叠，...数字越大，折叠越少。should open all folds, regardless of method used for folding. With
foldlevel=0all folded,foldlevel=1only somes, ... higher numbers will close fewer folds.您可以将其放入
.vimrc中：au BufRead * normal zR它声明一个自动命令 (
au)，当读取缓冲区 (BufRead) 时触发，匹配所有文件 (< code>*）并在正常模式下执行zR（打开所有折叠）命令。You can put this in your
.vimrc:au BufRead * normal zRIt declares an automatic command (
au), triggered when a buffer is read (BufRead), matching all files (*) and executes thezR(opens all folds) command in normal mode.将其添加到
.vimrc中将在您打开文件时暂时禁用折叠，但仍然可以使用zc恢复折叠Adding this to your
.vimrcwill temporarily disable folding when you open the file, but folds can still be restored withzc在
.vimrc中为BufWinEnter添加一个 autocmd 以自动打开所有折叠，如下所示：告诉 vim 在打开后执行
silent :%foldopen!BunWinEnter事件（参见:h BufWinEnter）。silent %foldopen!将执行foldopen由于%在整个缓冲区上，并且由于!将递归地打开所有折叠。任何最终的错误消息都将被silent抑制。 （如果缓冲区实际上尚未包含任何折叠，您可能会收到类似E490: No Fold found的错误消息）注意：您可以使用
BufRead而不是BufWinEnter但如果文件具有启用折叠的模型行，则会覆盖此 autocmd。我的意思是BufReadautocmd 在处理模型行之前运行，而BufWinEnter将在处理之后运行它们。我发现后者更有用In
.vimrcadd an autocmd forBufWinEnterto open all folds automatically like this:That tell vim to execute the
silent :%foldopen!after openingBunWinEnterevent (see:h BufWinEnter). Thesilent %foldopen!will executefoldopenon the whole buffer thanks to the%and will open all folds recursively because of the!. Any eventual error message will be suppressed bysilent. (You could get error messages likeE490: No fold foundif the buffer actually didn't contain any fold yet)Note: You could use
BufReadinstead ofBufWinEnterbut then if the file has a modeline that enables the folding that will override this autocmd. I meanBufReadautocmds run before the modeline is processed andBufWinEnterwill run them after. I find the later to be more useful您可以添加
到 .vimrc 文件，它将开始编辑所有打开的折叠的任何新文件。
You can add
to your .vimrc file, and it will start editing any new file with all folds open.
如果您想要一种方法让它在打开后立即展开，您可以使用
set Foldlevelstart=99正如许多答案所解释的那样。但是，如果您只想查看它们展开的情况，只需按
zi即可展开所有内容。另外，zi会将它们关闭。If you want a way to have it display unfolded as soon as it is opened, you can use
set foldlevelstart=99as a lot of answers explained.But, if you just want to see them unfolded, you can just press
ziand it will unfold everything. Another,ziwill close them back.您可以将其映射到按键以启用它。
例如，
然后在正常模式下按“,f”组合键
You could map it to keys to enable it.
For example,
Then while in normal mode hit the ",f" key combination
当您将
set nofoldenable放入 .vimrc 文件中时，您可以打开展开的文件。You can open unfolded file when you put
set nofoldenableinto your .vimrc file.autocmd BufReadPost * 无声！ :%foldopen!这对我来说效果最好。缓冲区打开后，所有折叠都会打开。这将使他们达到正确的水平。
set Foldenable方法不好，因为如果我选择关闭一个折叠级别，它会再次启用折叠，并将所有内容折叠到 0 级别，而不是仅在我激活的级别上下降一级。autocmd BufReadPost * silent! :%foldopen!This worked best for me. After a buffer gets opened all folds are opened. This opens them to the correct level.
The
set foldenablemethod was not good, because if I choose to close one fold level, it enabled folding again, and folded every thing to 0 level, instead of just going down one level on the one I activated.