完全依照物理动量守恒及能量守恒模拟两小球碰撞-In full accordance with the physical conservation of momentum and energy conservation the two ball collision simulation

VB模拟小球碰撞，随机产生不同质量大小的小球，可以改变初始速度和动能损失率，适合初学者-VB simulation of small ball collision, randomly generated different quality size ball, can change the initial velocity and kinetic energy loss rate, suitable for beginners