神秘的线“1；3409；0c”从何而来

Question

我在代码中发现了一行我从未写过的：

#!/usr/bin/python
#1;3409;0c

from math import exp

我想你自己也能发现。在

所以我在谷歌上搜索，似乎没有人谈论它，但是，它在某些地方会自动弹出：

• http://home.gwu.edu/~maxal/pubs.html
• http://lists.freedesktop.org/archives/systemd-devel/2014-November/024896.html
• https://github.com/alxlit/autoclave/pull/9/files?diff=split

有人知道它是从哪里来的吗？在

Answer 1

根据对Why is vim starting in delete mode?的评论，它似乎与Vim和终端之间的交互有关

When built with the +termresponse feature, Vim sends a special control sequence (see :set t_RV?) to the terminal. When your terminal emulator see this sequence it responds with the sequence ESC ]>1;3201;0c.

根据Mapping <esc> in vimrc causes bizzare arrow behaviour，在这些情况下，按escape键时，Vim也会做一些事情

This ensures that the binding doesn't happen until after the term response is set, which prevents Esc from also sending a string like ]>1;3201;0c to vim.

所以，我猜问题中链接的所有页面都在Vim中打开过（至少一次）。在