diff --git a/blog/osgEarth六边形网格.md b/blog/osgEarth六边形网格.md
index a634db7..20bfdb0 100644
--- a/blog/osgEarth六边形网格.md
+++ b/blog/osgEarth六边形网格.md
@@ -2,7 +2,7 @@
 
 　　在osgEarth中添加了osg::Geode，绘制蜂窝状六边形网格效果，包括墨卡托平面地图，地理坐标平面地图，三维地球等多种模式
 ![alt text](assets/osgEarth六边形网格/image.png)
-```c++
+```cpp
 // 函数：创建六边形蜂窝网格线，三维地球
 osg::ref_ptr<osg::Geometry> createHexagonWireframe(const osgEarth::GeoExtent& extent, float radius, int rows, int cols) {
 	osg::ref_ptr<osg::Geometry> geometry = new osg::Geometry;