update zh-cn/application-dev/reference/apis/js-apis-wallpaper.md.

Signed-off-by: N 葛亚芳 <geyafang@huawei.com>

update zh-cn/application-dev/reference/apis/js-apis-wallpaper.md.
Signed-off-by: N 葛亚芳 <geyafang@huawei.com>
1ca45294 · 葛亚芳 · Gitee · 35e04d3f · 1ca45294
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zh-cn/application-dev/reference/apis/js-apis-wallpaper.md zh-cn/application-dev/reference/apis/js-apis-wallpaper.md +2 -1

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--- a/zh-cn/application-dev/reference/apis/js-apis-wallpaper.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-wallpaper.md
@@ -642,7 +642,8 @@ restore(wallpaperType: WallpaperType): Promise&lt;void&gt;

 **示例：**
  
-```js wallpaper.restore(wallpaper.WallpaperType.WALLPAPER_SYSTEM).then((data) => {
+```js 
+wallpaper.restore(wallpaper.WallpaperType.WALLPAPER_SYSTEM).then((data) => {
    console.log(`success to restore.`);
  }).catch((error) => {
    console.error(`failed to restore because: ` + JSON.stringify(error));