/**
 * 实现Runnable接口
 * 
 */
public class Race implements Runnable {
   private static String winner;
    public void run() {
        for (int i = 0; i <= 100; i++) {
            boolean flag = gameOver(i);
            try {
                if (Thread.currentThread().getName().equals("兔子") && i%10 == 0){
                    Thread.sleep(1);
                }
            }catch (Exception e){
                e.getMessage();
            }
            if (flag){
                break;
            }
            System.out.println(Thread.currentThread().getName()+"------跑了"+i+"步");

        }
    }
    //    判断是否完成
    private boolean gameOver(int steps) {
        if (winner != null) { //证明有胜利者产生
            return true;
        }{
            if (steps >= 100){
                winner = Thread.currentThread().getName();
                System.out.println("winner is  " + winner);
                 return true;
            }
        }
        return false;
    }

    public static void main(String[] args) {
        Race race = new Race();

        new Thread(race,"兔子").start();
        new Thread(race,"乌龟").start();
    }
}

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