11.cpp

经典C语言程序设计100例1-10 如【程序1】 题目：有1、2、3、4个数字

/*---------------------------------------例题11-------------------------------------------------------------------*/


#include <iostream>

using namespace std;

int main()
{
	int month;
	int n1 = 1, n2 = 1, n3;
	cout <<"input the month :";
	cin>>month;
	for(int i = 2; i<month; i ++)//迭代法
	{
		n3 = n1 + n2;
		n1 = n2; 
		n2 = n3;
	}
	cout<<"The total number of the rabbits is:  "<<n3<<endl;

	return 0;
}