这是关于3d的效果，左边的向上箭头按钮是放大图像的，向下箭头按钮是缩小图像，右边的向左箭头是逆时针转动，向右箭头是顺时针转动。-This is the effect on the 3d, the up arrow button on the left is the enlarged image, the down arrow button is to narrow the image, the right to the left arrow is counterclockwise rotation, the right arrow is clockwise rotation.