设计一个n 个并发进程共享m 个系统资源的系统。进程可动态申请资源和释放资源，系统按各进程的申请动态的分配资源。要求采用银行家算法实现。-N the design of a concurrent process of system resources m sharing system. Process can be dynamic application of resources and the release of resources, the system according to proc