银行家算法，假设有5个进程，4类资源，执行银行家算法进行进程的调度和资源的分配。每次分配，要执行安全性检查，符合则分配资源，否则放弃试分配的资源-Bankers algorithm, assuming there are five processes, four types of resources to implement the bankers algorithm process scheduling and allocation of resources. Every assignment, to perform security checks in line with the allocation of resources, or to give up the tentative allocation of resources