(require 'package)
;;
(setq package-archives '(("gnu"    . "https://mirrors.tuna.tsinghua.edu.cn/elpa/gnu/")
                         ("nongnu" . "https://mirrors.tuna.tsinghua.edu.cn/elpa/nongnu/")
                         ("melpa"  . "https://mirrors.tuna.tsinghua.edu.cn/elpa/melpa/")))

;;
(package-initialize)

;;
(unless package-archive-contents
  (package-refresh-contents))

;;
(unless (package-installed-p 'company)
  (package-install 'company))

;;
(add-hook 'after-init-hook 'global-company-mode)

;;
(setq company-minimum-prefix-length 5) ;
(setq company-idle-delay 0.0)           ;
(setq company-show-quick-access t)      ;


;; 1. 解决中文乱码问题（非常重要）
(set-language-environment "UTF-8")
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)
(set-selection-coding-system 'utf-8)
(set-buffer-file-coding-system 'utf-8)
(set-default-coding-systems 'utf-8)
(modify-coding-system-alist 'process "*" 'utf-8)

;; 2. 设置默认字体（比如你喜欢的 Consolas）
(set-face-attribute 'default nil :family "Consolas" :height 160)

;; 3. 关闭烦人的启动画面和工具栏
(setq inhibit-startup-screen t)   ; 关闭启动画面
;;(tool-bar-mode -1)                ; 关闭工具栏
;;(scroll-bar-mode -1)              ; 关闭滚动条（看个人喜好）

;; 开启行号
(global-display-line-numbers-mode t)
;; 不开启eshell的
(add-hook 'eshell-mode-hook (lambda () (display-line-numbers-mode -1)))
;;自动匹配括号
(electric-pair-mode t)
;;任何模式下
(setq electric-pair-preserve-balance t)


;; 4. 快速打开配置文件（方便以后随时修改）
(defun open-init-file ()
  (interactive)
  (find-file "~/.emacs.d/init.el"))
(global-set-key (kbd "<f5>") 'open-init-file) ; 按 F5 快速改配置
(custom-set-variables
 ;; custom-set-variables 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.
 '(package-selected-packages nil))
(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.
 )