用C++17实现输出n行m列星号矩阵

```cpp #include <iostream> using namespace std; int main() { int n, m; cin >> n >> m; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cout << '*'; } cout << endl; } return 0; } ``` ######[AI问答 | 115点数解答 | 2026-02-14 19:34:20]