xm----------答案 Linghaiya · 发布于 2025-11-16 · 浏览 326 回复 3 //他会吃符号要加# include using namespace std; int main() { double F, C; cin >> F; C = 5 * (F - 32) / 9; cout << fixed << setprecision(5) << C << endl; return 0; }