将dwin_screen的构造函数设置为私有函数

components/dwin/dwin_screen.hpp

@@ -92,9 +92,10 @@ class DwinScreen {
   map<string, DwinRamManager*> m_rammanager_map;
 
   bool enablecrc = false;
-  DwinScreen(){};
 
  public:
+  DwinScreen(){};
+
   /**
    * @brief
    *