(global-set-key (kbd "C-a") 'mark-whole-buffer)

;;全选

(global-set-key (kbd "C-z") 'undo)

;;一键撤销

(global-set-key (kbd "RET") 'newline-and-indent)

;;换行时自动缩进

(cua-mode t)

;;Windows的剪切复制粘贴键

(show-paren-mode t)

(global-linum-mode t)

;;括号匹配，显示行号

(blink-cursor-mode -1)

;;光标别闪

(setq kill-ring-max 200)

;;撤销的缓存开大点

(setq default-cursor-type 'bar)

(setq default-tab-width 4)

;;默认tab宽度

(setq c-default-style "awk")

;;缩进风格

(set-background-color "gray15")

(set-foreground-color "gray")

;;背景颜色（白的太亮了）前景颜色也要跟着改

(set-frame-parameter (selected-frame) 'alpha (list 85 50))

;;透明度（一边敲代码一边看题还是舒服多了）