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public void initMusicModeControl() {
but_music.addMouseListener(new MouseAdapter() {

MyMenu popup_menuList = new MyMenu("²¥·ÅÇúÄ¿");

public void mouseClicked(MouseEvent e) {
int mod = e.getModifiers() & 4;
if (e.getButton() == MouseEvent.BUTTON1
&& e.getClickCount() == 2) {
int index = list.getSelectedIndex();
if (but_music.getActionCommand() == "true") {
changToMusicMode();
} else {
changToMoveMode(index);
}
} else if (mod != 0) {
System.out.println("Ok");

popup_menu.add(popup_menuList);
popup_menu.show(but_music, e.getX(), e.getY());
popupList.setSelectedIndex(list.getSelectedIndex());
popup_menuList.add(popupList);
}
}
});
}
ÉÏÃæ´úÂëÖÐint mod = e.getModifiers() & 4µÄ×÷ÓÃÊÇʲô£¬Ê²Ã´Òâ˼°¡;
getModifiers()·µ»Ø´ËÀà»ò½Ó¿ÚÒÔÕûÊý±àÂëµÄ Java ÓïÑÔÐÞÊηûÊÇʲôÒâ˼°¡£¿

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¾ßÌåµÄº¬Ò壬Çë²Î¼ûModifierÕâ¸öÀà

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Õâ¶Î´úÂëÖÐmod = e.getModifiers()&4µÄÒâ˼¼°×÷ÓÃÊÇʲôÄØ

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Õâ¸öÔÚModifierÀàÀïÃæÓж¨ÒåµÄ
Java code

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