From cb1a1e38b2469fefe7be9f56fd0a6227ff83e1be Mon Sep 17 00:00:00 2001
From: hwgaizw <gaizhengwei@huawei.com>
Date: Mon, 28 Feb 2022 21:12:23 +0800
Subject: [PATCH] =?UTF-8?q?=E8=B5=84=E6=96=99=E4=BF=AE=E6=94=B9=20Signed-o?=
 =?UTF-8?q?ff-by:=20hwgaizw=20<gaizhengwei@huawei.com>?=
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Signed-off-by: hwgaizw <gaizhengwei@huawei.com>
Change-Id: I0b77dfe7530bb2324927715afd520d6751f2a922
---
 zh-cn/application-dev/media/audio-playback.md |  8 ++++----
 zh-cn/application-dev/media/video-playback.md | 10 +++++-----
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/zh-cn/application-dev/media/audio-playback.md b/zh-cn/application-dev/media/audio-playback.md
index a3149c3573..5cc15af551 100644
--- a/zh-cn/application-dev/media/audio-playback.md
+++ b/zh-cn/application-dev/media/audio-playback.md
@@ -86,7 +86,7 @@ SetCallBack(audioPlayer);                          //设置事件回调
 let fdPath = 'fd://'
 let path = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp3';
 await fileIO.open(path).then(fdNumber) => {
-   fdPath = fdPath + " + fdNumber;
+   fdPath = fdPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
@@ -149,7 +149,7 @@ SetCallBack(audioPlayer);                          //设置事件回调
 let fdPath = 'fd://'
 let path = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp3';
 await fileIO.open(path).then(fdNumber) => {
-   fdPath = fdPath + " + fdNumber;
+   fdPath = fdPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
@@ -187,7 +187,7 @@ SetCallBack(audioPlayer);                          //设置事件回调
 let fdPath = 'fd://'
 let path = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp3';
 await fileIO.open(path).then(fdNumber) => {
-   fdPath = fdPath + " + fdNumber;
+   fdPath = fdPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
@@ -241,7 +241,7 @@ SetCallBack(audioPlayer);                          //设置事件回调
 let fdPath = 'fd://'
 let path = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp3';
 await fileIO.open(path).then(fdNumber) => {
-   fdPath = fdPath + " + fdNumber;
+   fdPath = fdPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
diff --git a/zh-cn/application-dev/media/video-playback.md b/zh-cn/application-dev/media/video-playback.md
index 4b7bec8c8b..708a3e20e8 100644
--- a/zh-cn/application-dev/media/video-playback.md
+++ b/zh-cn/application-dev/media/video-playback.md
@@ -82,7 +82,7 @@ await media.createVideoPlayer().then((video) => {
 let fdPath = 'fd://'
 let path = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp4';
 await fileIO.open(path).then(fdNumber) => {
-   fdPath = fdPath + " + fdNumber;
+   fdPath = fdPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
@@ -224,7 +224,7 @@ SetCallBack(videoPlayer);
 let fdPath = 'fd://'
 let path = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp4';
 await fileIO.open(path).then(fdNumber) => {
-   fdPath = fdPath + " + fdNumber;
+   fdPath = fdPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
@@ -310,7 +310,7 @@ SetCallBack(videoPlayer);
 let fdPath = 'fd://'
 let path = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp4';
 await fileIO.open(path).then(fdNumber) => {
-   fdPath = fdPath + " + fdNumber;
+   fdPath = fdPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
@@ -345,7 +345,7 @@ await videoPlayer.reset().then(() => {
 let fdNextPath = 'fd://'
 let nextPath = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/02.mp4';
 await fileIO.open(nextPath).then(fdNumber) => {
-   fdNextPath = fdNextPath + " + fdNumber;
+   fdNextPath = fdNextPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdNextPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
@@ -431,7 +431,7 @@ SetCallBack(videoPlayer);
 let fdPath = 'fd://'
 let path = 'data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp4';
 await fileIO.open(path).then(fdNumber) => {
-   fdPath = fdPath + " + fdNumber;
+   fdPath = fdPath + '' + fdNumber;
    console.info('open fd sucess fd is' + fdPath);
 }, (err) => {
    console.info('open fd failed err is' + err);
-- 
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