CCScale9Sprite *ani_1 = CCScale9Sprite::createWithSpriteFrameName(CCString::createWithFormat("%d.png",i+1)->getCString());
CCSize s = ani_1->getContentSize();
ani_1->setPreferredSize(CCSizeMake(winSize.width,s.height));
ani_1->setPosition(ccp(winSize.width/2,winSize.height/2));
setPreferSize 就是设置控件想要的大小