【OpenHarmony开源贡献者计划2022】update zh-cn/application-dev/reference/apis/js-apis-image.md.文档示例代码参数格式修改

文档示例代码参数格式修改
Signed-off-by: Nmeimeng <retter66@163.com>

zh-cn/application-dev/reference/apis/js-apis-image.md

@@ -809,7 +809,7 @@ crop(region: Region, callback: AsyncCallback\<void>): void
 
 ```js
 async function () {
-	await pixelMap.crop(3x3);
+	await pixelMap.crop({ x: 0, y: 0, size: { height: 100, width: 100 } });
 }
 ```
 
@@ -837,7 +837,7 @@ crop(region: Region): Promise\<void>
 
 ```js
 async function () {
-	await pixelMap.crop(3x3);
+	await pixelMap.crop({ x: 0, y: 0, size: { height: 100, width: 100 } });
 }
 ```