我们经常是使用SSH工具远程连接到Linux服务器上进行工作，有时候需要将Linux下使用VIM打开的文件内容复制到Windows上来，默认情况下，可能会复制不了，因为VIM默认情况下是使用的set mouse=a的设置，它会让鼠标选中的时候进入VIM的可视化模式，而不能复制。使用y命令也只是VIM内部的复制，不能复制到外部，所以需要将VIM的鼠标模式暂时关闭掉，使用set mouse=关闭掉即可复制，复制完成后，如果想回到原来的模式，则使用set mouse=a命令即可恢复。
VIM的鼠标模式可以参见帮助，在VIM中输入命令help mouse即可查看：
text
'mouse' string (default "", "a" for GUI and Win32,
set to "a" or "nvi" in defaults.vim)
global
Enable the use of the mouse. Works for most terminals (xterm, Win32
win32-mouse, QNX pterm, *BSD console with sysmouse and Linux console
with gpm). For using the mouse in the GUI, see gui-mouse. The
mouse can be enabled for different modes:
n Normal mode and Terminal modes
v Visual mode
i Insert mode
c Command-line mode
h all previous modes when editing a help file
a all previous modes
r for hit-enter and more-prompt prompt
Normally you would enable the mouse in all five modes with:
:set mouse=a
If your terminal can't overrule the mouse events going to the
application, use:
:set mouse=nvi
Then you can press ":", select text for the system, and press Esc to go
back to Vim using the mouse events.
In defaults.vim "nvi" is used if the 'term' option is not matching
"xterm".
When the mouse is not enabled, the GUI will still use the mouse for
modeless selection. This doesn't move the text cursor.
See mouse-using. Also see 'clipboard'.
Note: When enabling the mouse in a terminal, copy/paste will use the
"* register if there is access to an X-server. The xterm handling of
the mouse buttons can still be used by keeping the shift key pressed.
Also see the 'clipboard' option.即：
- n 普通模式和终端模式
- v 可视模式
- i 插入模式
- c 命令行模式
- h 当使用帮助文件时为所有前面所列模式
- a 所有前面所列模式
- r hit输入和更多提示