暂时只想到最简单的两层循环实现，留待后看，慢慢优化：

 1 #include <iostream>
 2 using namespace std;
 3 int main()
 4 {
 5     int arr[6][6] = {0};
 6 
 7     for (int i = 0; i < 6; i++)
 8     {
 9         for (int j = 0; j < 6; j++)
10         {
11             if (i == 0 || i == 5)
12             {
13                 arr[i][j] = 1;
14             }
15             else if (i == j)
16             {
17                 arr[i][j] = 1;
18             }
19             else if (i + j == 5)
20             {
21                 arr[i][j] = 1;
22             }
23             else
24             {
25                 arr[i][j] = -1;
26             }
27             cout<<arr[i][j]<<"  ";
28         }
29         cout<<endl;
30     }
31     return 0;
32 }