获取字母位置 [英] Get character position in alphabet

问题描述

我90％肯定有一个内置的函数，这样做。

我需要找到一个字符在字母表中的位置。因此，字符b是位置1（从0开始计算）等。是否有人知道该函数是什么？

b
$ b

编辑：我想要做的是将所有字符X的步骤数量发送回alpha投注，所以如果我有一个字符串hi gh如果我送回一步。

解决方案

它被称为 index 。例如

 >>> import string 
>>> string.lowercase.index（'b'）
 1 
>>>> 
  

注意：在Python 3中， string.lowercase 已重命名为 string.ascii_lowercase 。

I'm 90% sure there is a built in function that does this.

I need to find the position of a character in an alphabet. So the character "b" is position 1 (counting from 0), etc. Does anyone know what the function is called?

Thanks in advance!

EDIT: What i'm trying to do is to send all the characters X amount of "steps" back in the alpha bet, so if i have a string with "hi" it would be "gh" if i sent it back one step. There might be a better way of doing it, any tips?

解决方案

It is called index. For e.g.

>>> import string
>>> string.lowercase.index('b')
1
>>> 

Note: in Python 3, string.lowercase has been renamed to string.ascii_lowercase.

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