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    public void stop() {
        blinker = null;
    }
    public void run() {
        Thread thisThread = Thread.currentThread();
        while (blinker == thisThread) {
            try {
                thisThread.sleep(interval);
            } catch (InterruptedException e){
            }
            repaint();
        }
    } ¹ØÓÚʹÓÃvolatile¹Ø¼ü×ÖµÄÔ­Òò£¬Çë²é¿´http://java.sun.com/docs/books/jls/second_edition/html/classes.doc.html#36930¡£ µ±Ï̴߳¦ÓÚ·ÇÔËÐУ¨Run£©×´Ì¬ µ±Ï̴߳¦ÓÚÏÂÃæµÄ×´¿öʱ£¬ÊôÓÚ·ÇÔËÐÐ״̬£º µ±sleep·½·¨±»µ÷Óᣠµ±wait·½·¨±»µ÷Óᣠµ±±»I/O×èÈû£¬¿ÉÄÜÊÇÎļþ»òÕßÍøÂçµÈµÈ¡£ µ±Ï̴߳¦ÓÚÉÏÊöµÄ״̬ʱ£¬Ê¹ÓÃÇ°Ãæ½éÉܵķ½·¨¾Í²»¿ÉÓÃÁË¡£Õâ¸öʱºò£¬ÎÒÃÇ¿ÉÒÔ


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