Emacs批量缩进Python [英] Emacs bulk indent for Python

问题描述

在Emacs中使用Python，如果我想添加一个try / except到一个代码块，我经常发现我必须逐行缩进整个块。在Emacs中，如何一次缩进整个块？

Working with Python in Emacs if I want to add a try/except to a block of code, I often find that I am having to indent the whole block, line by line. In Emacs, how do you indent the whole block at once.

我不是一个经验丰富的Emacs用户，只是发现它是通过ssh工作的最佳工具。我在命令行（Ubuntu）上使用Emacs，而不是gui，如果有任何区别。

I am not an experienced Emacs user, but just find it is the best tool for working through ssh. I am using Emacs on the command line(Ubuntu), not as a gui, if that makes any difference.

推荐答案

如果你使用Emacs编程Python，那么你应该使用python模式。使用python模式，在标记代码块之后，

If you are programming Python using Emacs, then you should probably be using python-mode. With python-mode, after marking the block of code,

Cc> 或 Cc Cl 将区域向左移动4个空格

C-c > or C-c C-l shifts the region 4 spaces to the right

Cc < code> Cc Cr 将区域向左移动4个空格

C-c < or C-c C-r shifts the region 4 spaces to the left

如果需要将代码转换为两个级别的缩进，或一些任意数额，你可以在命令前加一个参数：

If you need to shift code by two levels of indention, or some arbitary amount you can prefix the command with an argument:

Cu 8 Cc> 移动区域8个空格在右边

C-u 8 C-c > shifts the region 8 spaces to the right

Cu 8 Cc <将区域向左移动8个空格

C-u 8 C-c < shifts the region 8 spaces to the left

另一个选择是使用 Mx indent-rigidly 绑定到 Cx TAB ：

Another alternative is to use M-x indent-rigidly which is bound to C-x TAB:

Cu 8 Cx TAB 将区域向右移动8个空格

C-u 8 C-x TAB shifts the region 8 spaces to the right

Cu -8 Cx TAB 将区域向左移动8个空格

C-u -8 C-x TAB shifts the region 8 spaces to the left

还有用的是。

Also useful are the rectangle commands that operate on rectangles of text instead of lines of text.

例如，标记矩形区域后，

For example, after marking a rectangular region,

Cx ro 插入空格以填充矩形区域（有效地向右移动代码）

C-x r o inserts blank space to fill the rectangular region (effectively shifting code to the right)

Cx rk 杀死矩形区域（有效地将代码移动到左边）

C-x r k kills the rectangular region (effectively shifting code to the left)

Cx rt 提示输入一个字符串来替换矩形用。输入 C-u 8< space> 然后将输入8个空格。

C-x r t prompts for a string to replace the rectangle with. Entering C-u 8 <space> will then enter 8 spaces.

PS。使用Ubuntu，要使python-mode成为所有.py文件的默认模式，只需安装 python-mode 软件包。

PS. With Ubuntu, to make python-mode the default mode for all .py files, simply install the python-mode package.

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