diff --git a/docs/uniCloud/unicloud-db.md b/docs/uniCloud/unicloud-db.md
index d76bbd4b1c87edcf24b45494a3e553e7de057332..61ffcc13d18bf8909974c170e520de0aa6dd7224 100644
--- a/docs/uniCloud/unicloud-db.md
+++ b/docs/uniCloud/unicloud-db.md
@@ -168,7 +168,15 @@ where中指定要查询的条件。比如只查询某个字段的值符合一定
 		}
 		onLoad() {
 			this.sWhere = "id=='" + this.tempstr + "'"
-		},
+
+			// 多条件示例
+
+			// id = this.tempstr 且 create_time > 1613960340000
+			// this.sWhere = "id=='" + this.tempstr + "' && create_time > 1613960340000"
+
+			// id = this.tempstr 或 name != null
+			// this.sWhere = "id=='" + this.tempstr + "' || name != null"
+		}
 	}
 </script>
 ```