能不能把int i = 0; i < numslen 改成int i = 1; i < =numslen -1
#include <iostream>
using namespace std;
int main()
{
int nums[]{ 8,4,2,1,23,344,12 };
int numslen = sizeof(nums) / sizeof(int);
int sum = 0;
cout << numslen << endl;
for (int i = 0; i < numslen; i++)
{
cout << nums[i] << '\t';
}
cout << endl;
for (int i = 0; i < numslen; i++)
{
sum += nums[i];
}
cout << "数列的和为:" << sum << "\t平均值为:" << sum / numslen << endl;
}