SOURCE

    for(i=11;i<31;i++) {

        $code = `    void s${i}_start() {
        try {
            Intent serviceIntent = new Intent(this, s${i}.class);
            BroadcastReceiver serviceReceiver = new BroadcastReceiver() {
                @Override
                public void onReceive(Context context, Intent intent) {
                    unregisterReceiver(this);
                    s${i}_exit();
                }
            };

            String Receiver = "com.tencent.mobileqq.service.s${i}.COMPLETED";
            IntentFilter filter = new IntentFilter(Receiver);
            registerReceiver(serviceReceiver, filter);

            serviceIntent.putExtra("Receiver", Receiver);
            startService(serviceIntent);

        }
        catch (Exception e){
            Log.d("Exception", e.getMessage());
        }
    }
    void s${i}_exit() {
        Timer timer = new Timer();
        TimerTask task = new TimerTask() {
            @Override
            public void run() {
                s${i}_start();
            }
        };
        // 1秒后执行一次
        timer.schedule(task, 3000);
    }`;
    document.write("<pre>"+$code+"</pre>")
       
    }