基于OGRE实现简单动画。实现OGRE应用程序主要的步骤有两个：

一是从类ExampleApplication派生出自己的应用程序类，重新实现createScene函数以创建场景；

二是从类ExampleFrameListener派生出自己的监听类，根据需要可重新实现frameStarted函数以进行特殊的输入控制和动画控制。

-Simple animation based on OGRE. OGRE application to achieve two main steps: First, derive from the class ExampleApplication own application class, re-implement createScene function to create a scene　the second is derived from the class ExampleFrameListener monitor their own class, according to the need to re-implement frameStarted special function for the input control and animation control.