很抱歉问一个很基础的问题,但实际上这是一个由两个部分组成的问题:
Given a list, I need to replace the values of '?' with 'i' and the 'x' with an integer, 10. The list does not always have the same number of elements, so I need a loop that permits me to do this.
a = ['1', '7', '?', '8', '5', 'x']
How do I grab the index of where the value is equal to '?'. It'd be nice if this show me how I could grab all the index and values in a list as well.