From 2bd664a92bcd5e765d6c9ec9b4fbabba9fc8d297 Mon Sep 17 00:00:00 2001
From: ql <qianli16@huawei.com>
Date: Fri, 25 Mar 2022 03:35:36 +0000
Subject: [PATCH] update zh-cn/application-dev/ability/stage-call.md.
 Signed-off-by: ql <qianli16@huawei.com>

---
 zh-cn/application-dev/ability/stage-call.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/zh-cn/application-dev/ability/stage-call.md b/zh-cn/application-dev/ability/stage-call.md
index bbfbf6e652..9fc6cd8678 100644
--- a/zh-cn/application-dev/ability/stage-call.md
+++ b/zh-cn/application-dev/ability/stage-call.md
@@ -160,6 +160,8 @@ context.startAbilityByCall({
 ```
 从DeviceManager获取指定设备的deviceId，具体示例代码如下：
 ```ts
+import deviceManager from '@ohos.distributedHardware.deviceManager';
+var dmClass;
 function getRemoteDeviceId() {
     if (typeof dmClass === 'object' && dmClass != null) {
         var list = dmClass.getTrustedDeviceListSync();
-- 
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