假设，我有一个未排序的范围数组。例如classCreditRange{longcredits;intid;}现在我想查找给定的信用计数值属于CreditRange中的哪一个。可能Set的值可以是CreditRange:{id:1,credits:0}CreditRange:{id:2,credits:100}CreditRange:{id:3,credits:500}CreditRange:{id:4,credits:250}Case1:NowwhenuserentersCredits=50,thisrangecomparatorshouldgiveanswerasCreditRang