多边形游戏，属于国际信息学奥林匹克竞赛试题。单人进行，开始时有一个或n个顶点构成的多边形，每个顶点被赋初始值，每条边有运算符号+、X。按步进行-Polygon game, belongs to the international informatics Olympic competition for the test. There is a single, start a vertex constitute or n polygon, each vertices are an initial v

3D多边形绘图游戏-Java源码，简单的绘图游戏，简单3D应用-3D polygon graphics games-Java source code, a simple drawing game, a simple 3D application

能实现幼儿多边形面积周长计算，随机出题，并可以产看做题记录和分数-Can realize children polygon area perimeter calculation, random number, and can be produced as a record and score