From 5e7006b8ddb88f533529aae5bc95be1ef3be1623 Mon Sep 17 00:00:00 2001
From: wangyaqi <wangyaqi988@163.com>
Date: Tue, 4 Feb 2020 19:16:07 +0800
Subject: [PATCH] =?UTF-8?q?docs:=20=E6=B7=BB=E5=8A=A0set=E6=8F=8F=E8=BF=B0?=
MIME-Version: 1.0
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---
 docs/uniCloud/cf-database.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/uniCloud/cf-database.md b/docs/uniCloud/cf-database.md
index 1cba2b51..f681a9ca 100644
--- a/docs/uniCloud/cf-database.md
+++ b/docs/uniCloud/cf-database.md
@@ -610,8 +610,13 @@ collection.doc('doc-id').update({
 ```
 
 ### 更新文档，如果不存在则创建
+
 collection.doc().set()
 
+**注意：**
+
+- 此方法会覆写已有字段，需注意与`update`表现不同，比如以下示例执行`set`之后`follow`字段会被删除
+
 ```js
 collection.doc('doc-id').set({
   name: "Hey",
-- 
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