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src/main/java/com/lovenav/service/serviceImpl/CommentServiceImpl.java

@@ -183,6 +183,7 @@ public class CommentServiceImpl implements CommentService {
     {
 
         String child = commentDao.queryChildId(commentId);
+        System.out.println(child);
         if(child == null)
         {
             commentDao.deleteByPrimaryKey(commentId);