diff --git a/example/common/VulkanAppFramework.h b/example/common/VulkanAppFramework.h
index dfb70b40..b1d92fea 100644
--- a/example/common/VulkanAppFramework.h
+++ b/example/common/VulkanAppFramework.h
@@ -296,74 +296,6 @@ public:
     }
 };//class VulkanApplicationFramework
 
-class WalkerCamera:public Camera
-{
-public:
-
-    using Camera::Camera;
-    virtual ~WalkerCamera()=default;
-
-    void ComputeViewMatrix() override
-    {
-        matrix.view=lookat(pos,target,world_up);
-    }
-
-public:
-
-    /**
-     * 向前移动指定距离(延视线)
-     */
-    virtual void Backward(const float move_length)
-    {
-        Move(camera_direction*move_length/view_distance.y);
-    }
-
-    /**
-     * 向后移动指定距离(延视线)
-     */
-    virtual void Forward(const float move_length){Backward(-move_length);}
-
-    /**
-     * 向上移动指定距离(和视线垂直90度)
-     */
-    virtual void Up(const float move_length)
-    {
-        Move(camera_up*move_length/view_distance.z);
-    }
-            
-    /**
-     * 向下移动指定距离(和视线垂直90度)
-     */
-    virtual void Down(const float move_length){Up(-move_length);}
-
-    virtual void Left(const float move_length)
-    {
-        Move(camera_right*move_length/view_distance.x);
-    }
-
-    virtual void Right(const float move_length){Left(-move_length);}
-
-    virtual void HoriRotate(const float ang)
-    {
-        Rotate(ang,camera_up);
-    }
-
-    virtual void VertRotate(const float ang)
-    {
-        Rotate(ang,camera_right);
-    }
-
-    virtual void WrapHoriRotate(const float ang)
-    {
-        WrapRotate(ang,camera_up);
-    }
-
-    virtual void WrapVertRotate(const float ang)
-    {
-        WrapRotate(ang,camera_right);
-    }
-};//class WalkerCamera:public Camera
-
 class CameraAppFramework:public VulkanApplicationFramework
 {
 private: