没人这么用吗？我用着挺好的:
;;if there is a #+ATTR.*: width="200", resize to 200, otherwise resize to 400
(setq org-image-actual-width '(400))
关于org-image-actual-width：
(setq org-image-actual-width 300) => always resize inline images to 300 pixels
(setq org-image-actual-width '(400)) => if there is a #+ATTR.*: width=“200”, resize to 200, otherwise resize to 400
(setq org-image-actual-width nil) => if there is a #+ATTR.*: width=“200”, resize to 200, otherwise don’t resize
(setq org-image-actual-width t) => Never resize and use original width (the default)