34、线程的优先级

class Person implements   Runnable{
    public  void run(){
        for (int i=0;i<20;i++){
            System.out.println("线程1");
        }
    }
}  
class Person2 implements   Runnable{
    public  void run(){
        for (int i=0;i<20;i++){
            System.out.println("线程2");
        }
    }
}  
public class Test{
public static void main(String[] args) {
    Person p1=new Person();
    Thread t1=new Thread(p1);
    t.setName("线程1");
    t.start();

  Person2 p2=new Person2();
    Thread t2=new Thread(p2);
    t2.setName("线程2");
    t2.start();
    t2.setPriority((Thread.NORM_PRIORITY)+5);
}
}