第三周C#上机实验（一）有规律的求和
using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace ConsoleApp2{ class Program { static void Main(string[] args) { int n1 = 1, n2 = 1,n3 = 0; Console.Write("按此规律算数1、1、2、3、5、8...."); Console.WriteLine(); for (int i = 3; i <= 30; i++) { n3 = n1 + n2; n1 = n2; n2 = n3; } Console.WriteLine("第30个数是：{0}", n3); Console.ReadKey(false); } }}
