//必须 要有float类型的参数

 void MainScene::updateFrame(float dt)

 {

     if (spriteTest != NULL && spriteTest->getBoundingBox().intersectsRect(sprite->getBoundingBox())) {

         CCLOG("碰撞了！");

         spriteTest->stopAllActions();

         spriteTest->removeFromParentAndCleanup(true);

         spriteTest = NULL;

     }

 }

 bool MainScene::init()

 {

     if (!Layer::init()) {

         return false;

     }

    //创建一个精灵

     spriteTest = Sprite::create("1.png");

     spriteTest->setPosition(Point(,));

     this->addChild(spriteTest);

     sprite = Sprite::create("1.png");

     sprite->setPosition(Point(,));

     this->addChild(sprite);

     MoveBy *by = MoveBy::create(, Vec2(, ));

     spriteTest->runAction(by);

     //帧回调

     this->schedule(schedule_selector(MainScene::updateFrame));

     return true;

 }