有代码不理解，希望大神前来指点
#include <iostream>using namespace std;
const int ArSize = 8;
int sum_arr(const int * begin, const int * end);
int main()
{
int cookies[ArSize] = {1, 2, 4, 8, 16, 32, 64, 128};
int sum = sum_arr(cookies, cookies + ArSize);
cout << "Total cookies eaten: " << sum << endl;
sum = sum_arr(cookies, cookies + 3);
cout << "First three eaters ate " << sum << " cookies.\n";
sum = sum_arr(cookies + 4, cookies + 8);
cout << "Last four eaters ate " << sum << " cookies.\n";
return 0;
}
int sum_arr(const int * begin, const int * end)
{
const int * pt;
int total = 0;
for (pt = begin; pt != end; pt++)
total = total + *pt;
return total;
}
{
const int * pt;
int total = 0;
for (pt = begin; pt != end; pt++)
total = total + *pt;
return total;
}
这下面的代码起什么作用呢？！
要不要有什么区别吗？
感谢大神前来指点！！！
[此贴子已经被作者于2018-7-28 09:09编辑过]
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