C++程序：根据细菌含量选择能量波治疗大白

```cpp #include <iostream> int main() { int x; // 读取输入的细菌含量 std::cin >> x; char energyWave; if (x <= 20) { energyWave = 'A'; } else if (x <= 40) { energyWave = 'B'; } else if (x <= 60) { energyWave = 'C'; } else { energyWave = 'D'; } // 输出需要释放的能量波类型 std::cout << energyWave << std::endl; return 0; } ``` ######[AI问答 | 169点数解答 | 2026-05-16 19:58:37]