本程序是利用MFC制作的微软基础类应用程序，目的是模拟彩色雨滴滴落到池塘的情景，达到彩色雨滴从天而降，入水有声（尽管不怎么好听），产生圈圈涟漪。-use of this procedure is produced by Microsoft MFC based applications procedures are designed to simulate color raindrop pond dropping to the scene to achieve color raindrop fall from the sky and into the water with sound (though not very pleasant to the ear), resulting circle of ripples.