缩略图https://askubuntu.com/questions/1368910/how-to-create-custom-thumbnailers-for-nautilus-nemo-and-caja安装imagemagicksudoaptinstallimagemagick-6.q16/usr/share/thumbnailers/psd.thumbnailerhttps://moritzmolch.com/blog/1749.htmlcd/usr/share/thumbn