package snake;//用來控制貪吃蛇移動的線程，增加了一個標志來停止線程public class MoveThread extends Thread{  private boolean isDead = false;//是否死亡，用來停止線程的運行  public MoveThread(){    super();  }  public MoveThread(Runnable target){    super(target);  }  //線程是否死亡  public boolean isDead(){    return this.isDead;  }  //設置線程是否死亡  public void setDead(boolean b){    this.isDead = b;  }}