如何修复 TypeError: +: 'int' 和 'str' 不支持的操作数类型

Question

我正在编写一个计算器，当我运行程序时，出现了这个错误消息：

Traceback (most recent call last):

  File "/Users/sergioley-languren/Documents/itt/independent_projects/Mathematical_Calculator.py", line 66, in <module>

    print(x + "+" + y + "=" + mathResult + ".") ; sleep(float(speed))

TypeError: unsupported operand type(s) for +: 'int' and 'str'

这是出现错误的代码：

print("type in your addition problem with your x variable first. (x variable = your first number) CAUTION: This calculator only supports 2 numbers at the moment.") ; sleep(float(speed))

        x = int(input())

        print("Type in your y variable.") ; sleep(float(speed))

        y = int(input())

        mathResult = x + y

        print(x + "+" + y + "=" + mathResult + ".") ; sleep(float(speed))

Answer 1

在python3中：print(x , "+" , y , "=" , mathResult , ".")

Answer 2

试着用逗号代替+：print&nbsp;x&nbsp;,&nbsp;"+"&nbsp;,&nbsp;y&nbsp;,&nbsp;"="&nbsp;,&nbsp;mathResult&nbsp;,&nbsp;"."

Answer 3

如果您使用的是 python 3.6。print(f"{x}&nbsp;+&nbsp;{y}&nbsp;=&nbsp;{mathResult}.")