1,显示行号
(global-linum-mode 1)
2,当前行高亮
(global-hl-line-mode 1)
3,背景色调整
(custom-set-faces
;; custom-set-faces was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
'(default ((t (:inherit nil :stipple nil :background "black" :foreground "grey80" :inverse-video nil :box nil :strike-through nil :overline nil :underline nil :slant normal :weight normal :height 120 :width normal :foundry "apple" :family "Monaco")))))
4, TAB 为4个空格
(setq tab-width 4 c-basic-offset 4)