public class RunnableTicket {
    public static void main(String args[]){
        MyThread m1 =new MyThread();
        MyThread m2 =new MyThread();
        MyThread m3 =new MyThread();
        new Thread(m1).start();
        new Thread(m2).start();
        new Thread(m3).start();
    }
}
与public class RunnableTicket {
    public static void main(String args[]){
        MyThread m =new MyThread();
        new Thread(m).start();
        new Thread(m).start();
        new Thread(m).start();
    }
}
两种线程实现为什么第一种资源不共享，而第二种资源共享？谁能给我解释一下吗？非常感谢