+：'int'和'str'的不支持的操作数类型

问题描述

我目前正在学习Python，所以我不知道发生了什么。

I am currently learning Python so I have no idea what is going on.

num1 = int(input("What is your first number? "))
num2 = int(input("What is your second number? "))
num3 = int(input("What is your third number? "))
numlist = [num1, num2, num3]
print(numlist)
print("Now I will remove the 3rd number")
print(numlist.pop(2) + " has been removed")
print("The list now looks like " + str(numlist))

当我运行程序时，输入num1，num2和num3的数字，它返回：
Traceback（最近一次调用最后一次）：

When I run the program, entering in numbers for num1, num2 and num3, it returns this:Traceback (most recent call last):

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

推荐答案

你是试图连接字符串和整数，这是不正确的。

You're trying to concatenate a string and an integer, which is incorrect.

更改 print（numlist.pop（2）+已被删除） 到以下任何一个：

显式 int 到 str 转换：

print(str(numlist.pop(2)) + " has been removed")

使用，而不是 + ：

print(numlist.pop(2), "has been removed")

字符串格式：

print("{} has been removed".format(numlist.pop(2)))

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