#include <stdio.h> int main() { int n = 0;//整数 while (scanf("%d", &n) != EOF) { int i = 0; for (i = 1; i <= n; i++)//中间之前的图案 { int j = 0; for (j = n + 1; j >= i; j--) { printf("* "); } printf("\n"); } int k = 0; for (k = 1; k <= n + 1; k++)//中间之后的图案(包括中间) { int l = 0; for (l = 1; l <= k; l++) { printf("* "); } printf("\n"); } } return 0; }