编辑HelloWorldScene.cpp里的init方法：
1 bool HelloWorld::init() 2 { 3 ////////////////////////////// 4 // 1. super init first 5 if ( !Layer::init() ) 6 { 7 return false; 8 } 9 auto* background = LayerColor::create(ccc4(255, 255, 255, 255)); 10 addChild(background); 11 auto* sprite = Sprite::create("1.png"); 12 sprite->setPosition(480, 320); 13 addChild(sprite); 14 15 auto* m_frameCache = SpriteFrameCache::getInstance(); 16 m_frameCache->addSpriteFramesWithFile("qiu1.plist", "qiu1.png"); 17 Vector<SpriteFrame*> frameArray; 18 for (int i = 1; i < 3; i++) 19 { 20 auto* frame = m_frameCache->getSpriteFrameByName(String::createWithFormat("%d.png", i)->getCString()); 21 frameArray.pushBack(frame); 22 } 23 Animation* animation = Animation::createWithSpriteFrames(frameArray); 24 //表示无限循环播放 25 animation->setLoops(-1); 26 //每两张图片的时间隔，图片数目越少，间隔最小就越小 27 animation->setDelayPerUnit(0.1f); 28 29 //将动画包装成一个动作 30 auto* action = Animate::create(animation); 31 sprite->runAction(action); 32 return true; 33 }