# python Arithmetic 410999020 ```python= a = input('請輸入兩個數字 ( 格式 a,b )：') b = a.split(',') b1 = int(b[0]) b2 = int(b[1]) print(f'{b1} + {b2} = {b1+b2}') print(f'{b1} - {b2} = {b1-b2}') print(f'{b1} x {b2} = {b1*b2}') print(f'{b1} / {b2} = {round(b1/b2,3)}') # 使用 round 四捨五入到小數點三位 print(f'{b2} + {b1} = {b2+b1}') print(f'{b2} - {b1} = {b2-b1}') print(f'{b2} x {b1} = {b2*b1}') print(f'{b2} / {b1} = {round(b2/b1,3)}') ```