03.作業三：Magic Squares

2) 同時印出 7*7 的 Magic square 在 Memo2 (以右下角方向填數字，注意其列、行、對角的和)：

3) 輸入偶數，印出要求奇數的訊息：

4) 另一種介面設計，提供四種方向的選擇 (by RadioBotton)

// ===== 印出對齊的矩陣數字 =====

void PrintSquare(int n, int flag)

{    int i, j, k;

AnsiString row, space ;

 int len = 6;

     if (flag == 1) Form1->Memo1->Lines->Add("    --------- "+IntToStr(n)+"*"+IntToStr(n)+" --------- ");

     else if (flag == 3) Form1->Memo2->Lines->Add("    --------- "+IntToStr(n)+"*"+IntToStr(n)+" --------- ");

     for (i = 0; i < n; i++)

     {   row = "";

         for (j = 0; j < n; j++)

         {   space = len - IntToStr(square[i][j]).Length();

             for (k = 0; k < space; k++) row += " ";

             row += IntToStr(square[i][j]);

         }

         if (flag == 1) Form1->Memo1->Lines->Add(row);

         else if (flag == 3) Form1->Memo2->Lines->Add(row);

     }

}

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