多线程详解p11、sleep线程休眠

public class TestSleep {
    public static void main(String[] args) {
        timeDown();
    }
    public static void timeDown(){
        int i=10;
        while (true){
            System.out.println("倒计时"+i--);
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            if(i<=0){
                break;
            }
        }
    }
}