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 fal