temp = input("Please select 1 (Celsius) or 2 (Fahrenheit): ") temp2 = float(input("Please input the temperature: ")) if temp == "1": # 攝氏轉華氏 temp3 = round(temp2 * 9/5 + 32, 2) print("Celsius", temp2, "degree = Fahrenheit", temp3, "degree") elif temp == "2": # 華氏轉攝氏 temp3 = round((temp2 - 32) * 5/9, 2) print("Fahrenheit", temp2, "degree = Celsius", temp3, "degree") else: print("Invalid selection! Please enter 1 or 2.")