..

services/knowledge/classify.go

@@ -384,7 +384,7 @@ func EditKnowledgeClassify(classifyId, parentId int, classifyName string, resour
 			err = fmt.Errorf(errMsg)
 			return
 		}
-		if parentClassifyItem.Level != item.Level {
+		if parentClassifyItem.Level+1 != item.Level {
 			errMsg = "不允许修改分类层级"
 			err = errors.New("不允许修改分类层级")
 			return