cocos2dx骨骼动画

Cocos2d-x
#1 
请把代码粘贴在这里


```
 ArmatureDataManager::getInstance()->addArmatureFileInfo("loadingback.ExportJson");
 ArmatureDataManager::getInstance()->addArmatureFileInfo("MainSceneBtn.ExportJson");

 Armature *m_role = Armature::create("loadingback");
 m_role->getAnimation()->playByIndex(0);
 this->addChild(m_role);
 
 Armature *m_role1 = Armature::create("MainSceneBtn");
 m_role1->getAnimation()->playByIndex(0);
 this->addChild(m_role1);

为什么运行时两个动画是一样的？明明是创建了不同的动画呀？