#include <stdio.h> int main() { int n = 0; //多组输入 while (~scanf(" %d", &n)) { //控制行数 for (int i = 0; i < n; i++) { //控制列 for (int j = 0; j < n; j++) { if (i == j || i + j == n - 1) { printf("*"); } else { printf(" "); } } printf("\n"); } } return 0; }