与线程中断有关的，有三个方法，这三个方法看起来很像。
public void Thread.interrupt()//中断线程
public boolean Thread.isInterrupted()//判断是否被中断
public static boolean Thread.interrupted()//判断是否被中断，并清除当前中断状态
Thread.sleep()函数的用法：
public class TestThread extends Thread{
public static void main(String[] args) throws InterruptedException {
Thread t1 = new Thread("xiaoming"){
@Override
public void run(){
while(true){
System.out.println(Thread.currentThread().getName());
if(Thread.currentThread().isInterrupted()){
System.out.println("Interruted!");
break;
}
try {
Thread.sleep(2000);
} catch (Exception e) {
// TODO: handle exception
System.out.println("Interrupted When Sleep");
//设置中断状态
Thread.currentThread().interrupt();
}
System.out.println("准备挂起");
Thread.yield();
}
}
};
t1.start();
Thread.sleep(3000);
t1.interrupt();
}
}