Question

我正在写一个会掷骰子的程序。这是我的代码：

import random

Number_of_sides = input("How many sides should the die have?")
Number_of_sides = int

print("OK, the number of sides on the die will be" + Number_of_sides)

number = random.randit(1, Number_of_sides)

print(number)

当我运行程序时，我收到此错误：

File "die.py", line 6, in <module>
    print("OK, the number of sides on the die will be" + Number_of_sides)
TypeError: must be str, not type

我的问题是：出了什么问题，我该如何解决？我将来如何避免它？

Answer 1

您没有正确地将字符串转换为int。

import random

number_of_sides = input("How many sides should the die have?")
number_of_sides_int = int(number_of_sides)

print("OK, the number of sides on the die will be " + number_of_sides)

number = random.randint(1, number_of_sides_int)

print(number)

不是将字符串转换为int，而是将变量number_of_sides转换为Python类型int。这就是错误可能令人困惑的原因，但Python int是一个python type。

Answer 2

问题是你的陈述顺序不正确。

您需要在打印确认声明后转换该值，以便在随机函数中正确使用它。

如果在打印之前将其转换，则会得到TypeError，因为Python无法一起添加字符串和数字

最后，随机调用中存在一个小错字，方法为randint而不是randit。

把所有这些放在一起，你有：

import random

Number_of_sides = input("How many sides should the die have?")
# Number_of_sides = int - not here.
print("OK, the number of sides on the die will be" + Number_of_sides)

Number_of_sides = int(Number_of_sides) # - this is where you do the conversion
number = random.randint(1, Number_of_sides) # small typo, it should be randint not randit

print(number)

typeerror：必须是str，而不是type

2 个答案: