2024-12-27nom::sequence::preceded Matches an object from the first parser and discards it, then gets an objectnom::sequence::precededMatchesanobjectfromthefirstparseranddiscardsit,thengetsanobjectfromthesecondparser.上面是rustnom官网对于preceded的解释UUUUUUUUU你完全正确，nom::sequence::preceded的定义确实是：Matchesanobjectfromthefirstparse