如下程序,在eclipse下运行后只是弹出框,但是点击按钮,无发播放本地的音频文件。请教各位了!import java.applet.*;
import java.awt.*;
import java.awt.event.*;public class Example7_9 extends Applet implements ActionListener{
AudioClip clip;
Button buttonPlay,buttonLoop,buttonStop;
public void init(){
 clip=getAudioClip(getCodeBase(),"Windows XP 关机.wav");
  buttonPlay=new Button("开始播放");
  buttonLoop=new Button("循环播放");
  buttonStop=new Button("停止播放");
  buttonPlay.addActionListener(this);
  buttonStop.addActionListener(this);
  buttonLoop.addActionListener(this);
    add(buttonPlay);add(buttonLoop);add(buttonStop);
 
}
public void stop(){
 clip.stop();
}
public void actionPerformed(ActionEvent e)
{
 if(e.getSource()==buttonPlay){clip.play();}
 else if(e.getSource()==buttonLoop){clip.loop();}
 if(e.getSource()==buttonStop){clip.stop();}
 }}