From 8a462046cf8717ffb8a8517a4c9ea13494d214a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E4=BA=9A=E7=90=AA?= <wangyaqi988@163.com>
Date: Sat, 19 Feb 2022 15:07:35 +0800
Subject: [PATCH] fix: gitee pr 78

---
 docs/uniCloud/cf-database.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/docs/uniCloud/cf-database.md b/docs/uniCloud/cf-database.md
index 35a3e3738..869c71362 100644
--- a/docs/uniCloud/cf-database.md
+++ b/docs/uniCloud/cf-database.md
@@ -3393,8 +3393,8 @@ let res = await db.collection('orders').aggregate()
 如需orders关联books，book再关联authors查询，可以在pipeline内再使用lookup
 
 ```js
-const dbCmd = db.command;
 const db = cloud.database()
+const dbCmd = db.command
 const $ = db.command.aggregate
 let res = await db.collection('orders').aggregate()
   .lookup({
@@ -3404,7 +3404,7 @@ let res = await db.collection('orders').aggregate()
     },
     pipeline: $.pipeline()
       .match(
-        dbCmd .expr($.eq(['$_id', '$$book_id']))
+        dbCmd.expr($.eq(['$_id', '$$book_id']))
       )
       .lookup({
         from: 'authors',
@@ -3413,7 +3413,7 @@ let res = await db.collection('orders').aggregate()
         },
         pipeline: $.pipeline()
           .match(
-            dbCmd .expr($.eq(['$_id', '$$author_id']))
+            dbCmd.expr($.eq(['$_id', '$$author_id']))
           )
           .done(),
         as: 'authorList'
-- 
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