C#的向上取整和向下取整

编程Tag： math c# 取整 down double UP 向下 77.5

 double down = Math.Floor(77.5);  //向下取整
 double up = Math.Ceiling(77.5);  //向上取整
 MessageBox.Show("77.5向下取整是" + down+ "\n77.5向上取整是" + up);