ALLEGRO17.4印制板挖空挖空层：Board Geometry -> Cutout，注意Package及Route禁布层版权声明：本文为xingsongyu原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。原文链接：https://blog.csdn.net/xingsongyu/article/details/117885598