初始化场景增加判断是否已存在场景信息，如果存在返回成功

src/main/java/com/fdkankan/scene/service/impl/ScenePlusServiceImpl.java

@@ -205,6 +205,10 @@ public class ScenePlusServiceImpl extends ServiceImpl<IScenePlusMapper, ScenePlu
     public ResultData initScene(String num, String title, String des, Integer sceneSource,
         String dataSource, Integer sceneScheme, String sceneResolution, String sceneFrom) {
 
+        ScenePlus scenePlusByNum = this.getScenePlusByNum(num);
+        if(Objects.nonNull(scenePlusByNum))
+            return ResultData.ok();
+
         //生成场景主表
         ScenePlus scenePlus = new ScenePlus();
         scenePlus.setNum(num);