简单地说，状态机又称之为有限状态机， 状态机系统有 N 个（有限个）状态，任一时刻，系统都工作于其中的一个状态，当有输入 （激励）时，系统执行某些动作，并切换到下一状态-Said state machine is also known as a finite state machine, the state machine system there are N (a finite number of) state at any one time, the system works in