Emacs Lisp 重新加载点,emacs的

(defun reload-dot-emacs ()
  "Save the .emacs buffer if needed, then reload .emacs."
  (interactive)
  (let ((dot-emacs "~/.emacs"))
    (and (get-file-buffer dot-emacs)
         (save-buffer (get-file-buffer dot-emacs)))
    (load-file dot-emacs))
  (message "Re-initialized!"))