说明：  银行家算法（Banker's Algorithm）是一个避免死锁（Deadlock）的著名算法，是由艾兹格·迪杰斯特拉在1965年为T.H.E系统设计的一种避免死锁产生的算法。它以银行借贷系统的分配策略为基础，判断并保证系统的安全运行
(Banker's Algorithm is a well-known Algorithm for avoiding deadlocks, which was designed by Ezra dijkstra for T.H.E. system in 1965. Based on the allocation strategy of bank lending system, it judges and guarantees the safe operation of the system)