cocos KeyBoard

<span style="white-space:pre">	</span>EventListenerKeyboard* keyev = EventListenerKeyboard::create();keyev->onKeyPressed = [](EventKeyboard::KeyCode key, Event*){if(key == EventKeyboard::KeyCode::KEY_J){// 表示j键被按下CCLOG("j is down");}};keyev->onKeyReleased = [](EventKeyboard::KeyCode key, Event*){if(key == EventKeyboard::KeyCode::KEY_J){// 表示j键被释放CCLOG("j is up");}};_eventDispatcher->addEventListenerWithSceneGraphPriority(keyev, this);