public class testThread extends Thread{
    public testThread(){}
    public void run(){
        System.out.println("run()方法運(yùn)行....");
        }
    public static void main(String arg[]){
        testThread t=new testThread();
        System.out.println("start() 開(kāi)始運(yùn)行...");
        t.start();
      
        }
    }