#include <iostream> using namespace std; float FahrenheitToCelsius(float Fahrenheit); //函數宣告,應放在main函數之前 int main() { float input; cout << "請輸入華氏溫度:"; cin >> input; cout << endl; cout << "換算成攝氏溫度是:" << FahrenheitToCelsius(input) << endl; return 0; } float FahrenheitToCelsius(float Fahrenheit) //函數定義,建議放在main函數後 { float Celsius=(Fahrenheit-32.0)/1.8; return Celsius; }