程序代码：

public class Dr {
    private int[][] num;

    private void print(int n) {
        num = new int[n][n];
        int count = 1;
        int row = 0, col = 0;
        int endRow = n - 1, endCol = n - 1, endCount = n * n;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < i + 1; j++) {
                num[row][col] = count;
                count++;

                if (i % 2 == 0) {
                    row--;
                    col++;
                } else {
                    row++;
                    col--;
                }

                if (row < 0) {
                    row++;
                    col--;
                } else if (col < 0) {
                    col++;
                    row--;
                }
            }
            if (row == 0) {
                col++;
            } else if (col == 0) {
                row++;
            }

            for (int j = 0; j < i + 1; j++) {
                if (i == n - 1)
                    break;
                num[endRow][endCol] = endCount;
                endCount--;

                if (i % 2 != 0) {
                    endRow--;
                    endCol++;
                } else {
                    endRow++;
                    endCol--;
                }
                if (endCol > n - 1) {
                    endCol--;
                    endRow++;
                } else if (endRow > n - 1) {
                    endCol++;
                    endRow--;
                }
            }
            if (endRow == n - 1) {
                endCol--;
            } else if (endCol == n - 1) {
                endRow--;
            }
        }

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                System.out.printf("%4d", num[i][j]);
            }
            System.out.println();
        }
    }

    public static void main(String[] args) {
        Dr d = new Dr();
        d.print(4);
        System.out.println();
        d.print(7);
    }
}

程序代码：

public class aa{

    private static int s[][];

    public static void main(String as[]){
        int n1=0,n2=0,nn=0,o=4;
        s=new int[o][o];
        for(int u=0;u<o;u++){    
            for(int i=0,j=u;i<=u;i++,j--){
                if(u%2==0){n1=j;n2=i;}else{n1=i;n2=j;}
                nn++;
                s[n1][n2]=nn;
                if(u!=o-1){s[o-1-n1][o-1-n2]=o*o+1-nn;}
            }

        }
        

        for(int i=0;i<o;i++){
            String ss="";
            for(int ii=0;ii<o;ii++){
                ss+=s[i][ii]+" ";
        
            }
            System.out.println(ss);
        }

    }


}