问题
I'm using Emacs as an editor. I want to set the tab size to four spaces. In my .emacs file I have the following:
(setq default-tab-width 4)
I've also tried:
(set-default tab-width 4)
Either way, when I open emacs and try to tab, it inserts two spaces. Am I doing something wrong? It almost seems like its not seeing my .emacs file.
Any suggestions would be great! Thanks!
回答1:
The tab-width variable doesn't determine the amount of indenting per level, and the TAB key doesn't insert a tab: it indents the current line to the correct indentation level in most language modes.
If you're programming in C, C++ or Java (and a few more, based on cc-mode), try setting c-basic-offset to 4. Or hit C-c . and select another indentation style; there might be one that matches your taste.
来源：https://stackoverflow.com/questions/2517207/setting-tab-size-in-emacs