python学习4：整数的加减乘除运算

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python学习4：整数的加减乘除运算

2022-12-20 15:59| 来源: 网络整理| 查看: 265

实现python的加减乘除：

num1 = input("please enter a number:") num2 = input("please anter a number:") print (int(num1) + int(num2)) print (int(num1) - int(num2)) print (int(num1) * int(num2)) print (int(num1) / int(num2))

按F5，出运算结果如下：

=================== RESTART: C:/Users/公有制/Desktop/four.py =================== please enter a number:15 please anter a number:5 20 10 75 3.0 >>>

上面的代码必须用int来转换，否则python会认为是两个字符串加减，这样会报错的：

=================== RESTART: C:/Users/公有制/Desktop/four.py =================== please enter a number:15 please anter a number:5 155 Traceback (most recent call last): File "C:/Users/公有制/Desktop/four.py", line 4, in print (num1 - num2) TypeError: unsupported operand type(s) for -: 'str' and 'str' >>>

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python学习4：整数的加减乘除运算

python学习4：整数的加减乘除运算

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