本程序采用经典粒子图形算法仿真喷泉。P.

代码说明：

本程序采用了图形学中经典的粒子算法，实现了喷泉的模拟。程序中可以自己改动粒子的运动轨迹方程，来模拟其它的景象，例如下雪。-This procedure uses classical particle graphics algorithm simulation fountain. Process can change the trajectories of particles equation, to simulate the other scenes, such as snow.