在避免死锁的方法中，所施加的限制条件较弱，有可能获得令人满意的系统性能。在该方法中把系统的状态分为安全状态和不安全状态，只要能使系统始终都处于安全状态，便可以避免发生死锁。

银行家算法的基本思想是分配资源之前,判断系统是否是安全的 若是,才分配。它是最具有代表性的避免死锁的算法。

-Avoid deadlock in the method, the restrictions imposed by the weaker conditions, it is possible to obtain satisfactory system performance. In this method the state of the system is divided into security status and insecurity, as long as the system can always in a safe state, have been avoided deadlock. Banker