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From: =?UTF-8?q?=E8=82=96=E5=B8=85?= <xiaoshuai6@hisilicon.com>
Date: Tue, 19 Jul 2022 20:54:05 +0800
Subject: [PATCH] =?UTF-8?q?Signed-off-by:=20=E8=82=96=E5=B8=85=20<xiaoshua?=
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 Changes to be committed:
	modified:   zh-cn/application-dev/reference/apis/js-apis-uitest.md
---
 zh-cn/application-dev/reference/apis/js-apis-uitest.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zh-cn/application-dev/reference/apis/js-apis-uitest.md b/zh-cn/application-dev/reference/apis/js-apis-uitest.md
index efe59299e6..a56c386900 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-uitest.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-uitest.md
@@ -1285,7 +1285,7 @@ async function demo() {
 
 ### triggerCombineKeys<sup>9+</sup>
 
-triggerCombineKeys(key0: number, key1: number, key2: number): Promise\<void>
+triggerCombineKeys(key0: number, key1: number, key2?: number): Promise\<void>
 
 UiDriver对象通过给定的key值，找到对应组合键并点击。例如，Key值为(2072, 2019)时，UiDriver对象找到组合键并点击ctrl+c。
 
-- 
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