package headfirst.command; public enum FanSpeed { HIGH(3,"高速"), MEDIUM(2,"中速"), LOW(1,"低速"), OFF(0,"关闭"); private int state; private String stateInfo; private FanSpeed(int state,String stateInfo) { this.state = state; this.stateInfo = stateInfo; } public int getState() { return state; } public String getStateInfo() { return stateInfo; } }