原来排除所有错误答案,就得到了正确答案 :
(setq-default fill-column 80) ;; M-x set-fill-column RET
(add-hook 'after-init-hook 'global-display-fill-column-indicator-mode)
原来排除所有错误答案,就得到了正确答案 :
(setq-default fill-column 80) ;; M-x set-fill-column RET
(add-hook 'after-init-hook 'global-display-fill-column-indicator-mode)