From cb92be844edc4e957aba811fd2dd2d8e048a0753 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=99=BD=E8=8C=B6=E6=B8=85=E6=AC=A2?=
 <go_developer@163.com>
Date: Mon, 25 Nov 2024 18:54:03 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96json=E5=90=88=E5=B9=B6?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 json.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/json.go b/json.go
index ee6f6c1..0fdb977 100644
--- a/json.go
+++ b/json.go
@@ -181,7 +181,13 @@ func (oj *ownJSON) MergeDataForMap(ignoreError bool, dataList ...any) (map[strin
 		}
 
 		for k, v := range itemRes {
-			res[k] = v
+			if v == nil {
+				if _, exist := res[k]; !exist {
+					res[k] = v
+				}
+			} else {
+				res[k] = v
+			}
 		}
 	}
 	return res, nil