这个vim命令是如何工作的:G/#/+1T.

Question

我当时正在打虚拟高尔夫(顺便说一句，我很容易上瘾)，我无法理解http://vimgolf.com/challenges/4d1a34ccfa85f32065000004这个挑战的解决方案之一

目前的挑战是如何转换这一案文：

Make the pairs of lines match up by making each second line same as first:

# Appending text:
The name "Vim" is an acronym for "Vi IMproved"
The name "Vim" is an acronym for

# Editing text:
Vim is a text editor originally released by Bram Moolenaar in 1991 for the Amiga
Trivia: Vim is a text editor released by Bram Moolenaar in 1991 for the Amiga

# Deleting text:
Vim has a vi compatibility mode
Vim has a vi compatibility mode but when not in this mode Vim has many enhancements over vi

对此：

通过使第二行与第一行相同，使对线匹配起来：

# Appending text:
The name "Vim" is an acronym for "Vi IMproved"
The name "Vim" is an acronym for "Vi IMproved"

# Editing text:
Vim is a text editor originally released by Bram Moolenaar in 1991 for the Amiga
Vim is a text editor originally released by Bram Moolenaar in 1991 for the Amiga

# Deleting text:
Vim has a vi compatibility mode
Vim has a vi compatibility mode

我的问题是，这个解决方案的第二行是如何工作的：

:g/#/+2d<CR>:<Up><BS><BS>1t.<CR>ZZ

第二行我指的是:g/#/+1t.

Answer 1

正如您可能已经知道的那样:g/ # /为包含一个#的所有行运行一个命令，这是不同挑战的主题。

现在，由于你的第一行已经删除了“错误”行，第二行只是抄袭了剩下的一行。

在#-Line中，向前移动一行(+1)并将(t)复制到当前行(.)

剩下两行相同的线。