Lambda函数中的多个if语句 [英] Multiple if statements in a lambda function

问题描述

我正在尝试在python lambda函数中使用3 if语句.这是我的代码:

I am trying to use 3 if statements within a python lambda function. Here is my code:

y=lambda symbol: 'X' if symbol==True 'O' if symbol==False else ' '

例如，我已经能够获得两个if语句来正常工作

I Have been able to get two if statements to work just fine e.g.

x=lambda cake: "Yum" if cake=="chocolate" else "Yuck"

基本上，我希望lambda函数使用if语句在符号为True时返回'X'，在符号为false时返回'O'，否则返回''.我什至不确定这是否可行，但是我无法在互联网上找到任何信息，因此，我非常感谢您的帮助:)

Essentially, I want a lambda function to use if statements to return 'X' if the symbol is True, 'O' if it is false, and ' ' otherwise. I'm not even sure if this is even possible, but I haven't been able to find any information on the internet, so I would really appreciate any help :)

推荐答案

您在'O'之前缺少else. 这有效:

You are missing an else before 'O'. This works:

y = lambda symbol: 'X' if symbol==True else 'O' if symbol==False else ' '

但是，我认为您应该坚持亚当·史密斯的方法.我觉得这更容易阅读.

However, I think you should stick to Adam Smith's approach. I find that easier to read.

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