圣诞节来了，相信大家都想拥有一棵独特的圣诞树，下面由我为大家C语言代码打印一棵圣诞树吧！

#include <stdio.h>
int main()
{
    int i, j, n, b, s;
    printf("请输入树的层数：");
    scanf("%d", &n);
    for (i = 1; i <= n; i++)
    {
        for (j = 1; j <= i + 1; j++)
        {
            for (s = 1; s <= n + 1 - j; s++)
            {
                printf("  ");
            }
            for (s = 1; s <= 2 * j - 1; s++)
            {
                printf("张");
            }
            printf("\n");
        }
    }
    for (b = 1; b <= n * 2; b++)
        for (s = 1; s <= n * 2; s++)
        {
            if (s == n * 2)
            {
                printf("|三|\n");
                continue;
            }
            printf(" ");
        }
    printf("\n");
    return 0;
}