如下数字图形在通过执行后续的 C++ 代码时，输入 来输出。横线处应填入的代码是（ ）。
1 1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0 1
0 1 0 0 0 0 0 0 1
0 0 1 0 0 0 0 0 1
0 0 0 1 0 0 0 0 1
0 0 0 0 1 0 0 0 1
0 0 0 0 0 1 0 0 1
0 0 0 0 0 0 1 0 1
0 0 0 0 0 0 0 1 1
1 1 1 1 1 1 1 1 1
int N;
cin >> N;
for (int i = 1; i < N + 1; i++) {
for (int j = 1; j < N + 1; j++)
if (________)
cout << "1 ";
else
cout << "0 ";
cout << endl;
}
- A.
i == j and i == 1 and j == 1 and i == N and j == N - B.
i == j or i == 1 or j == 1 or i == N or j == N - C.
i == j or i == 0 or j == 0 or i == (N + 1) or j == (N + 1) - D.
i == j and i == 1 and j == 1 and i == (N + 1) and j == (N + 1)