#include<iostream>
using namespace std;

int SumArray(int a[], int n, int len)
{
	if (n == 0)    //基线条件
	{
		return 0;
	}
	else           //递归条件
	{
		return a[len - n] + SumArray(a, n - 1, len);
	}
}

int main()
{
	int a[50], n;
	cout<<"请输入数组中数的个数";
	cin >> n;
	cout<<"请向数组输入";
	for (int i = 0; i < n; i++)
	{
		cin >> a[i];
	}

	cout <<"数组的和为：" ;
	cout<<SumArray(a, n, n);
	return 0;
}