Python - Regular Expression find position of first vowel in a string

Question

How to use regular expression to find the position of first vowel in a string?

eg string = 'this is the day!' 'i' is the first vowel and I want to have the position 2 (since i is the 3rd element in the string)

What is I want to find the 2nd vowel, the 3rd, etc.?

Answer 1

您不需要正则表达式，可以通过一个简单的列表理解来完成，位置为1

vowel_pos = [ i for i,v in enumerate(my_string) if v.lower() in ('a','e','i','o','u','y') ]