说明：  在Ogre里实现加载模型mesh的功能，实现加载聚光灯的功能，并且，这些功能是读取的Xml文件后实现的。请将XML文件拷贝到D盘目录下或者重新设置路径
(Ogre in the mesh model to achieve the function of load, to achieve the function to load the spotlight, and, of these features is to read the Xml document to achieve. I would be grateful if XML files are copied to the D disk directory or the path to re-set)