1123 hw # Python 計算機程式 operator = input('請輸入運算符(加法：+，減法：-，乘法：＊，除法：/):') num1 = float(input('請輸入第一個數字：')) num2 = float(input('輸入第二個數字：')) if operator =='+': result = num1 + num2 elif operator =='-': result = num1 - num2 elif operator =='*': result = num1 * num2 elif operator =='/': result = num1 / num2 else: print('運算符號無效') print(f'運算結果是{round(result)}')