知识点:
循环控制:
循环输出图形
#include <iostream> using namespace std; int main() { int n; while (cin >> n) { for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { if ((i == j) || (j == n - i - 1)) { cout << "*"; } else { cout << " "; } } cout << endl; } } return 0; }