用java实现的01背包问题的有分支限界的回溯算法，注释非常详细，是我作业的一部分。伪代码可以参考《计算机算法与数据结构》这本书-Using java to achieve 01 knapsack problem branch-and-bound backtracking algorithm and very detailed notes, is part of my job. The pseudo-code can refer to this book of computer algorith