string - Mathematica Style Solution to String Parsing

Question

I want to take a string of the form "(ABC)(DEF)" and translate adjacent pairs of letters into numbers, interpreting the letters inside parenthesis as cycles. From my example I would want to generate the table:

{{"AB", 1}, {"BC", 2}, {"CA", 3}, {"DE", 4}, {"EF", 5}, {"FD", 6}}

I could do this with a loop, but my limited knowledge of the 'Mathematica Style' of coding suggests that there is a better way to do this in Mathematica. How do I do this the Mathematica way? In general where can I learn about Mathematica style coding?

Edit: Changed my mind. I want to create a function, f, such that f["AB"] = 1, etc. but I don't think this will change the problem much.

Answer 1

1给定输入“ab” ，这是一个返回的函数：

f["ab"] = 1

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