程序代码：

#include <stdio.h>

int main(void) {
    int n, i, j, spaces;
    if(!scanf("%d", &n) || n < 1) {
        printf("Unsupported operation!\n");
        return -1;
    }
    spaces = ((n++) - 1) * 4;
    int array[n][n];
    for(i = 0; i < n; i++)
        for(j = 0; j < n; j++)
            array[i][j] = 0;
    array[0][0] = 1;
    for(i = 1; i < n; i++)
        for(j = 1; j < n; j++)
            array[i][j] = array[i - 1][j - 1] + array[i - 1][j];
    for(i = 1; i < n; i++) {
        for(j = 0; j < spaces; j++)
            putchar(' ');
        for(j = 1; j < i + 1; j++)
            printf("%-8d", array[i][j]);
        spaces -= 4;
        printf("\n");
    }
    return 0;
}

程序代码：

import java.util.Scanner;

public class Triangle {
    public static void main(String[] args) {
        int n, i, j, spaces;
        Scanner input = new Scanner(System.in);
        if((n = input.nextInt()) < 1) {
            System.out.printf("Unsupported operation!\n");
            System.exit(1);
        }
        spaces = ((n++) - 1) * 4;
        int[][] array = new int[n][n];
        array[0][0] = 1;
        for(i = 1; i < n; i++)
            for(j = 1; j < n; j++)
                array[i][j] = array[i - 1][j - 1] + array[i - 1][j];
        for(i = 1; i < n; i++) {
            for(j = 0; j < spaces; j++)
                System.out.printf(" ");
            for(j = 1; j < i + 1; j++)
                System.out.printf("%-8d", array[i][j]);
            spaces -= 4;
            System.out.println();
        }
    }
}