编辑代码

#include <iostream>
using namespace std;
int leijia(int arr[],int length)
{
    int S;
    for(int i=0;i<length;i++)
    {
        S=S+arr[i];
    }
    return S;
}
int main() {
    int arr[]={1,2,3,4,5,6,7,8,9,10};
    int S=leijia(arr,10);
    cout<<S<<endl;
	return 0;
}