打开多图：打开多副图象（用ctrl选多个文件，最多只能开9幅，否则会重叠） 打开单图：打开一副图象，可在多副图象基础上追加打开1幅图象，最多只能显示9副 -Open Multi-Figure: Open more than vice images (multiple files using ctrl election, can only be opened up to nine, or else they will overlap) to open a single image: Op