采用中垂线构图的方式解决Voronoi构图问题，本算法随机生成外部凸包，可以高效解决内部节点个数为20以下的Voronoi构图，并且用graphics.h画出相应图形。-Using the vertical resolution of Voronoi patterned patterning problem, the algorithm randomly generated outside the convex hull can efficiently solve the number of internal nodes of Voronoi composition is 20 or less, and with graphics.h draw the corresponding graphics.