程序代码：

struct Sarg
{
    int count;
    char* ptr;
};
int add(Sarg& a)
{
    int sum = 0;
    int* fp = (int*)a.ptr;
    for(int i=0;i<a.count;i++)
    {
        sum += fp[i]; 
    }
    return sum;
};
int main()
{
    Sarg a;
    a.count = 5;
    a.ptr = (char*)new int[5]{ 1,2,3,4,5 };
    std::cout << add(a);
    system("pause");

}