避免死锁产生的算法-银行家算法。系统在进行资源分配之前，应先计算此次分配资源的安全性，若分配不会导致系统进入不安全状态，则分配，否则等待。-Before allocating resources, the system should calculate the security of the allocated resources. If the allocation does not cause the system to enter an unsafe state, the system will allocate it. Otherwise, it waits.