may 07
| Keystrokes | Command name | Action |
|---|---|---|
| C-x r k | kill-rectangle | Delete a rectangle and store it. |
| C-x r d | delete-rectangle | Delete a rectangle and do not store it. |
| C-x r y | yank-rectangle | Insert the last rectangle killed. |
| C-x r c | clear-rectangle,Using spaces | blank out the area marked as a rectangle and do not store it." |
| C-x r o | open-rectangle | Insert a blank rectangle in the area marked. |
| C-x r r r | copy-rectangle-to-register | Copy rectangle to register r (where r is any character) . |
| C-x r i r | insert-register | Insert rectangle from register r (where r is any character). |
| (none) | delete-whitespace-rectangle | If a rectangle includes initial whitespace, deletes it, narrowing rectangle. |
| C-x r t string Enter | string-rectangle | Change contents of marked rectangle to string (if string is narrower or wider than rectangle, dimensions change accordingly). |
| (none) | string-insert-rectangle | Prompts for string and inserts rectangle. |
如果你曾经用过 UltraEdit 的 Column 编辑模式，应该会很喜欢 Emacs 的这个功能。
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