帮看一下怎么才能弄出

星辰an 发表于 2021-5-19 21:31

这是代码，大佬们帮看一下，谢谢啦{:1_919:} {:1_919:}
package FirstHeadJava;

import javax.sound.midi.*;

public class MiniMusicCmdLine{
public static void main(String[] args) {
   MiniMusicCmdLine mini = new MiniMusicCmdLine();
   if(args.length<2){
         System.out.println("Don't forget the instrument and note args");
   }else {
         int instrument = Integer.parseInt(args);
         int note = Integer.parseInt(args);
         mini.play(instrument,note);

   }

}
public void play(int instrument ,int note ){
   try{
         Sequencer player = MidiSystem.getSequencer();
         player.open();
         Sequence seq = new Sequence(Sequence.PPQ, 4);
         Track track = seq.createTrack();

         MidiEvent event = null;

         ShortMessage first = new ShortMessage();
         first.setMessage(192,1,instrument,0);
         MidiEvent changeInstrument = new MidiEvent(first,1);
         track.add(changeInstrument);

         ShortMessage a = new ShortMessage();
         a.setMessage(144,1,note,100);
         MidiEvent noteOn = new MidiEvent(a,1);
         track.add(noteOn);

         ShortMessage b = new ShortMessage();
         b.setMessage(128,1,note,100);
         MidiEvent noteOff = new MidiEvent(b,16);
         track.add(noteOff);
         player.setSequence(seq);
         player.start();

   }catch (Exception ex){
         ex.printStackTrace();
   }
}
}

baolibu 发表于 2021-5-20 13:45

我去，我居然点进来了。然后啥都看不懂，只能灰溜溜的出去。

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帮看一下怎么才能弄出