类型错误：+ 不支持的操作数类型：“NoneType”和“str”退出状态 1答案

【问题标题】：Type Error: unsupported operand type(s) for +: 'NoneType' and 'str' exit status 1类型错误：+ 不支持的操作数类型：“NoneType”和“str”退出状态 1
【发布时间】：2020-11-13 00:05:53
【问题描述】：

我一直在编辑我的文本，但我一直收到同样的错误！

我的代码：

import random

Female_Characters = ["Emily", "Ariel", "Jade", "Summer"]
Male_Characters = ["Blake", "Max", "Jack", "Cole", "Daniel"]
PlacesToMeet = ["Beach", "Park", "Train Station", "Cave"]
SheSaid = ["Lets go explore!", "I'm tired", "I saw a purple frog", "My tounge hurts"]
HeSaid = ["I didnt get much sleep", "I wanna go inside that cave!", "Oh, ok"]
Outcomes = ["They never got to", "They were never found again.", "They enjoyed their day and went to 
get Ice Cream!"]

ChosenFemale = random.choice(Female_Characters)
ChosenMale = random.choice(Male_Characters)
ChosenMeet = random.choice(PlacesToMeet)
ChosenShesaid = random.choice(SheSaid)
ChosenHeSaid = random.choice(HeSaid)

print ("There were two friends, their names are ") + (ChosenMale) + (", and ") + (ChosenFemale) + (".") + ("One day when they were at the") + (ChosenMeet) + (", ") + (ChosenFemale) + (" Said, ") + (ChosenShesaid) + (". Then") + (ChosenMale) + (" Said ") + (ChosenHeSaid) + (". After that, ") + random.choice(Outcomes)

python 还是新手

【问题讨论】：

您不需要在print() 调用中将所有字符串和变量放在括号内。
重新阅读有关如何编写print 命令的教材。您正在尝试将 print 调用与字符串连接起来，这是没有意义的。
@Prune 我怀疑他们使用的是 Python 2 材料。
这能回答你的问题吗？ How to fix "TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'"?

标签： python

【解决方案1】：

print 行中的括号不正确。

print("There were two friends, their names are " + ChosenMale + ", and " + ChosenFemale + "." + "One day when they were at the" + ChosenMeet + ", " + ChosenFemale + " Said, " + ChosenShesaid + ". Then" + ChosenMale + " Said " + ChosenHeSaid + ". After that, " + random.choiceOutcomes)

您的代码正在调用

print("There were two friends, their names are ")

它返回None，然后尝试将其与所有其他字符串连接起来。

也许您正在遵循 Python 2.x 的说明。在 Python 2 中，print 是一个语句，因此它不带括号中的参数，但在 Python 3 中，它是一个普通函数。

【讨论】：

【解决方案2】：

去掉这个字符串末尾的括号

print("There were two friends, their names are "

并在末尾添加

random.choice(Outcomes)

应该是这样的：

print ("There were two friends, their names are " + (ChosenMale) + (", and ") + (ChosenFemale) + (".") + ("One day when they were at the") + (ChosenMeet) + (", ") + (ChosenFemale) + (" Said, ") + (ChosenShesaid) + (". Then") + (ChosenMale) + (" Said ") + (ChosenHeSaid) + (". After that, ") + random.choice(Outcomes))

【讨论】：