namespace ConsoleApplication34 { class Program { static void Main(string[] args) { while (true) { Console.Write("请输入第几个月份:"); int s = Convert.ToInt32(Console.ReadLine()); int a = 1;//开始幼兔对数 int b = 0;//开始小兔对数 int c = 0;//开始成兔对数 int m = 1;//开始总兔对数 for (int i = 1; i <=s; i++) { if (i==1) { a = 1; b = 0; c = 0; } else if(i>1) { c = c + b;//本月成=上月成+上月小 //顺序不能改变 这是变量的逻辑顺序 b = a;//本月小=上月幼 a = c;//本月幼=本月成 } m = a + b + c; Console.WriteLine(i + "个月后的成兔是:" + c); Console.WriteLine(i + "个月后的小兔是:" + b); Console.WriteLine(i + "个月后的幼兔是:" + a); Console.WriteLine(i + "个月后的成兔是:" + m); Thread.Sleep(1000); } } } } }