拖拉三条拖拉干可以改变立体四方体的位置。立体显示出来-Three stem drag drag can change the location of three-dimensional body Quartet. Three-dimensional display. .

在线性直角坐标系中，绘制条形图、阶梯图、杆图和填充图-Linear Cartesian coordinates, draw bar, stairs diagram, stem chart and fill map