python - 在Python中替换switch语句？(Replacements for switch statement in Python?)

Question

I want to write a function in Python that returns different fixed values based on the value of an input index.

(我想用Python编写一个函数，该函数根据输入索引的值返回不同的固定值。)

In other languages I would use a switch or case statement, but Python does not appear to have a switch statement.

(在其他语言中，我将使用switch或case语句，但是Python似乎没有switch语句。)

What are the recommended Python solutions in this scenario?

(在这种情况下，推荐的Python解决方案是什么？)

  ask by Michael Schneider translate from so

Answer 1

You could use a dictionary:

(您可以使用字典：)

def f(x):
    return {
        'a': 1,
        'b': 2,
    }[x]