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

Signed-off-by: N刘关鹏 <liuguanpeng1@huawei.com>

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

@@ -7,7 +7,7 @@
 
 ## 导入模块
 
-```js
+```ts
 import image from '@ohos.multimedia.image';
 ```
 
@@ -35,7 +35,7 @@ createPixelMap(colors: ArrayBuffer, options: InitializationOptions): Promise\<Pi
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
@@ -65,11 +65,11 @@ createPixelMap(colors: ArrayBuffer, options: InitializationOptions, callback: As
 
 **示例：**
 
-```js
+```ts
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
 let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
-image.createPixelMap(color, opts, (error, pixelmap : image.PixelMap) => {
+image.createPixelMap(color, opts, (error : BusinessError, pixelmap : image.PixelMap) => {
     if(error) {
         console.log('Failed to create pixelmap.');
     } else {
@@ -112,7 +112,7 @@ readPixelsToBuffer(dst: ArrayBuffer): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 const readBuffer : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 pixelmap.readPixelsToBuffer(readBuffer).then(() => {
@@ -139,9 +139,10 @@ readPixelsToBuffer(dst: ArrayBuffer, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
+import {BusinessError} from '@ohos.base'
 const readBuffer : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
-pixelmap.readPixelsToBuffer(readBuffer, (err, res) => {
+pixelmap.readPixelsToBuffer(readBuffer, (err : BusinessError, res : Object) => {
     if(err) {
         console.log('Failed to read image pixel data.');  //不符合条件则进入
     } else {
@@ -172,7 +173,7 @@ readPixels(area: PositionArea): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 const area : image.PositionArea = {
     pixels: new ArrayBuffer(8),
@@ -204,11 +205,12 @@ readPixels(area: PositionArea, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
+import {BusinessError} from '@ohos.base'
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
 let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
-image.createPixelMap(color, opts, (err, pixelmap : image.PixelMap) => {
+image.createPixelMap(color, opts, (err : BusinessError, pixelmap : image.PixelMap) => {
     if(pixelmap == undefined){
         console.info('createPixelMap failed.');
     } else {
@@ -245,7 +247,7 @@ writePixels(area: PositionArea): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
@@ -261,7 +263,7 @@ image.createPixelMap(color, opts)
             region: { size: { height: 1, width: 2 }, x: 0, y: 0 }
         }
         let bufferArr : Uint8Array = new Uint8Array(area.pixels);
-        for (var i = 0; i < bufferArr.length; i++) {
+        for (let i = 0; i < bufferArr.length; i++) {
             bufferArr[i] = i + 1;
         }
 
@@ -290,17 +292,18 @@ writePixels(area: PositionArea, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
+import {BusinessError} from '@ohos.base'
 const area : image.PositionArea = { pixels: new ArrayBuffer(8),
     offset: 0,
     stride: 8,
     region: { size: { height: 1, width: 2 }, x: 0, y: 0 }
 }
 let bufferArr : Uint8Array = new Uint8Array(area.pixels);
-for (var i = 0; i < bufferArr.length; i++) {
+for (let i = 0; i < bufferArr.length; i++) {
     bufferArr[i] = i + 1;
 }
-pixelmap.writePixels(area, (error) => {
+pixelmap.writePixels(area, (error : BusinessError) => {
     if (error != undefined) {
 		console.info('Failed to write pixelmap into the specified area.');
 	} else {
@@ -331,11 +334,11 @@ writeBufferToPixels(src: ArrayBuffer): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
-for (var i = 0; i < bufferArr.length; i++) {
+for (let i = 0; i < bufferArr.length; i++) {
     bufferArr[i] = i + 1;
 }
 pixelmap.writeBufferToPixels(color).then(() => {
@@ -362,13 +365,14 @@ writeBufferToPixels(src: ArrayBuffer, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
+import {BusinessError} from '@ohos.base'
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
-for (var i = 0; i < bufferArr.length; i++) {
+for (let i = 0; i < bufferArr.length; i++) {
     bufferArr[i] = i + 1;
 }
-pixelmap.writeBufferToPixels(color, function(err) {
+pixelmap.writeBufferToPixels(color, (err : BusinessError) => {
     if (err) {
         console.error("Failed to write data from a buffer to a PixelMap.");
         return;
@@ -394,7 +398,7 @@ getImageInfo(): Promise\<ImageInfo>
 
 **示例：**
 
-```js
+```ts
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let opts : image.InitializationOptions = { editable: true, pixelFormat: 2, size: { height: 6, width: 8 } }
 image.createPixelMap(color, opts).then((pixelmap : image.PixelMap) => {
@@ -428,14 +432,15 @@ getImageInfo(callback: AsyncCallback\<ImageInfo>): void
 
 **示例:**
 
-```js
+```ts
+import {BusinessError} from '@ohos.base'
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
-image.createPixelMap(color, opts, (err, pixelmap : image.PixelMap) => {
+image.createPixelMap(color, opts, (err : BusinessError, pixelmap : image.PixelMap) => {
     if (pixelmap == undefined) {
         console.error("Failed to obtain the image pixel map information.");
     }
-    pixelmap.getImageInfo((err, imageInfo : image.ImageInfo) => {
+    pixelmap.getImageInfo((err : BusinessError, imageInfo : image.ImageInfo) => {
         if (imageInfo == undefined) {
             console.error("Failed to obtain the image pixel map information.");
         }
@@ -462,11 +467,12 @@ getBytesNumberPerRow(): number
 
 **示例：**
 
-```js
+```ts
+import {BusinessError} from '@ohos.base'
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
 let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
-image.createPixelMap(color, opts, (err,pixelmap : image.PixelMap) => {
+image.createPixelMap(color, opts, (err : BusinessError, pixelmap : image.PixelMap) => {
     let rowCount : number = pixelmap.getBytesNumberPerRow();
 })
 ```
@@ -487,7 +493,7 @@ getPixelBytesNumber(): number
 
 **示例：**
 
-```js
+```ts
 let pixelBytesNumber : number = pixelmap.getPixelBytesNumber();
 ```
 
@@ -507,7 +513,7 @@ getDensity():number
 
 **示例：**
 
-```js
+```ts
 let getDensity : number = pixelmap.getDensity();
 ```
 
@@ -528,9 +534,10 @@ opacity(rate: number, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
-var rate = 0.5;
-pixelmap.opacity(rate, (err) => {
+```ts
+import {BusinessError} from '@ohos.base'
+let rate = 0.5;
+pixelmap.opacity(rate, (err : BusinessError) => {
 	if (err) {
         console.error("Failed to set opacity.");
         return;
@@ -562,7 +569,7 @@ opacity(rate: number): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
     await pixelmap.opacity(0.5);
 }
@@ -584,7 +591,7 @@ createAlphaPixelmap(): Promise\<PixelMap>
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
     await pixelmap.createAlphaPixelmap();
 }   
@@ -606,8 +613,9 @@ createAlphaPixelmap(callback: AsyncCallback\<PixelMap>): void
 
 **示例：**
 
-```js
-pixelmap.createAlphaPixelmap((err, alphaPixelMap : image.PixelMap) => {
+```ts
+import {BusinessError} from '@ohos.base'
+pixelmap.createAlphaPixelmap((err : BusinessError, alphaPixelMap : image.PixelMap) => {
     if (alphaPixelMap == undefined) {
         console.info('Failed to obtain new pixel map.');
     } else {
@@ -634,7 +642,7 @@ scale(x: number, y: number, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.scale(2.0, 1.0);
 }
@@ -663,7 +671,7 @@ scale(x: number, y: number): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.scale(2.0, 1.0);
 }
@@ -687,7 +695,7 @@ translate(x: number, y: number, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.translate(3.0, 1.0);
 }
@@ -716,7 +724,7 @@ translate(x: number, y: number): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.translate(3.0, 1.0);
 }
@@ -739,9 +747,10 @@ rotate(angle: number, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
-var angle = 90.0;
-pixelmap.rotate(angle, (err) => {
+```ts
+import {BusinessError} from '@ohos.base'
+let angle = 90.0;
+pixelmap.rotate(angle, (err : BusinessError) => {
 	if (err) {
         console.error("Failed to set rotation.");
         return;
@@ -773,7 +782,7 @@ rotate(angle: number): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.rotate(90.0);
 }
@@ -797,7 +806,7 @@ flip(horizontal: boolean, vertical: boolean, callback: AsyncCallback\<void>): vo
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.flip(false, true);
 }
@@ -826,7 +835,7 @@ flip(horizontal: boolean, vertical: boolean): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.flip(false, true);
 }
@@ -849,7 +858,7 @@ crop(region: Region, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.crop({ x: 0, y: 0, size: { height: 100, width: 100 } });
 }
@@ -877,7 +886,7 @@ crop(region: Region): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 async function Demo() {
 	await pixelmap.crop({ x: 0, y: 0, size: { height: 100, width: 100 } });
 }
@@ -909,10 +918,10 @@ getColorSpace(): colorSpaceManager.ColorSpaceManager
 
 **示例：**
 
-```js
+```ts
 import colorSpaceManager from '@ohos.graphics.colorSpaceManager';
 async function Demo() {
-    let csm = pixelmap.getColorSpace();
+    let csm : Object = pixelmap.getColorSpace();
 }
 ```
 
@@ -941,11 +950,11 @@ setColorSpace(colorSpace: colorSpaceManager.ColorSpaceManager): void
 
 **示例：**
 
-```js
+```ts
 import colorSpaceManager from '@ohos.graphics.colorSpaceManager';
 async function Demo() {
     let colorSpaceName = colorSpaceManager.ColorSpace.SRGB;
-    var csm = colorSpaceManager.create(colorSpaceName);
+    let csm : colorSpaceManager.ColorSpaceManager = colorSpaceManager.create(colorSpaceName);
     pixelmap.setColorSpace(csm);
 }
 ```
@@ -975,19 +984,19 @@ marshalling(sequence: rpc.MessageSequence): void
 
 **示例：**
 
-```js
+```ts
 import image from '@ohos.multimedia.image'
 import rpc from '@ohos.rpc'
 class MySequence {
     pixel_map;
-    constructor(pixelmap) {
+    constructor(pixelmap : image.PixelMap) {
         this.pixel_map = pixelmap;
     }
-    marshalling(messageSequence) {
+    marshalling(messageSequence : rpc.MessageSequence) {
         this.pixel_map.marshalling(messageSequence);
         return true;
     }
-    async unmarshalling(messageSequence) {
+    async unmarshalling(messageSequence : rpc.MessageSequence) {
         let pixelParcel : image.PixelMap = await image.createPixelMap(new ArrayBuffer(96), {size: { height:4, width: 6}});
         await pixelParcel.unmarshalling(messageSequence).then(async (pixelMap : image.PixelMap) => {
             this.pixel_map = pixelMap;
@@ -1030,23 +1039,23 @@ unmarshalling(sequence: rpc.MessageSequence): Promise\<PixelMap>
 | ------- | --------------------------------------------|
 | 62980115 | If the input parameter invalid              |
 | 62980097 | If the ipc error              |
-| 62980096 | If the Operation failed             |
+| 62980096 | If fail to create async work            |
 
 **示例：**
 
-```js
+```ts
 import image from '@ohos.multimedia.image'
 import rpc from '@ohos.rpc'
 class MySequence {
     pixel_map;
-    constructor(pixelmap) {
+    constructor(pixelmap : image.PixelMap) {
         this.pixel_map = pixelmap;
     }
-    marshalling(messageSequence) {
+    marshalling(messageSequence : rpc.MessageSequence) {
         this.pixel_map.marshalling(messageSequence);
         return true;
     }
-    async unmarshalling(messageSequence) {
+    async unmarshalling(messageSequence : rpc.MessageSequence) {
         let pixelParcel : image.PixelMap = await image.createPixelMap(new ArrayBuffer(96), {size: { height:4, width: 6}});
         await pixelParcel.unmarshalling(messageSequence).then(async (pixelMap : image.PixelMap) => {
             this.pixel_map = pixelMap;
@@ -1078,7 +1087,7 @@ release():Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 pixelmap.release().then(() => {
 	console.log('Succeeded in releasing pixelmap object.');
@@ -1103,7 +1112,7 @@ release(callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 pixelmap.release(() => {
     console.log('Succeeded in releasing pixelmap object.');
 })
@@ -1131,19 +1140,19 @@ createImageSource(uri: string): ImageSource
 
 **示例：**
 
-```js
+```ts
 //Stage模型
 const context : Context = getContext(this);
-const path : string= context.cacheDir + "/test.jpg";
+const path : string = context.cacheDir + "/test.jpg";
 const imageSourceApi : image.ImageSource = image.createImageSource(path);
 ```
 
-```js
+```ts
 //FA模型
 import featureAbility from '@ohos.ability.featureAbility';
 
 const context : Context = featureAbility.getContext();
-const path : string= context.getCacheDir() + "/test.jpg";
+const path : string = context.getCacheDir() + "/test.jpg";
 const imageSourceApi : image.ImageSource = image.createImageSource(path);
 ```
 
@@ -1170,8 +1179,8 @@ createImageSource(uri: string, options: SourceOptions): ImageSource
 
 **示例：**
 
-```js
-var sourceOptions : image.SourceOptions = { sourceDensity: 120 };
+```ts
+let sourceOptions : image.SourceOptions = { sourceDensity: 120 };
 let imageSource : image.ImageSource = image.createImageSource('test.png', sourceOptions);
 ```
 
@@ -1197,7 +1206,7 @@ createImageSource(fd: number): ImageSource
 
 **示例：**
 
-```js
+```ts
 const imageSourceApi : image.ImageSource = image.createImageSource(0);
 ```
 
@@ -1224,8 +1233,8 @@ createImageSource(fd: number, options: SourceOptions): ImageSource
 
 **示例：**
 
-```js
-var sourceOptions : image.SourceOptions = { sourceDensity: 120 };
+```ts
+let sourceOptions : image.SourceOptions = { sourceDensity: 120 };
 const imageSourceApi : image.ImageSource = image.createImageSource(0, sourceOptions);
 ```
 
@@ -1245,7 +1254,7 @@ createImageSource(buf: ArrayBuffer): ImageSource
 
 **示例：**
 
-```js
+```ts
 const buf : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 const imageSourceApi : image.ImageSource = image.createImageSource(buf);
 ```
@@ -1273,7 +1282,7 @@ createImageSource(buf: ArrayBuffer, options: SourceOptions): ImageSource
 
 **示例：**
 
-```js
+```ts
 const data : ArrayBuffer= new ArrayBuffer(112);
 const imageSourceApi : image.ImageSource = image.createImageSource(data);
 ```
@@ -1300,7 +1309,7 @@ CreateIncrementalSource(buf: ArrayBuffer): ImageSource
 
 **示例：**
 
-```js
+```ts
 const buf : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 const imageSourceIncrementalSApi : image.ImageSource = image.CreateIncrementalSource(buf);
 ```
@@ -1328,7 +1337,7 @@ CreateIncrementalSource(buf: ArrayBuffer, options?: SourceOptions): ImageSource
 
 **示例：**
 
-```js
+```ts
 const buf : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 const imageSourceIncrementalSApi : image.ImageSource = image.CreateIncrementalSource(buf);
 ```
@@ -1362,8 +1371,9 @@ getImageInfo(index: number, callback: AsyncCallback\<ImageInfo>): void
 
 **示例：**
 
-```js
-imageSourceApi.getImageInfo(0,(error, imageInfo : image.ImageInfo) => { 
+```ts
+import {BusinessError} from '@ohos.base'
+imageSourceApi.getImageInfo(0,(error : BusinessError, imageInfo : image.ImageInfo) => { 
     if(error) {
         console.log('getImageInfo failed.');
     } else {
@@ -1388,7 +1398,7 @@ getImageInfo(callback: AsyncCallback\<ImageInfo>): void
 
 **示例：**
 
-```js
+```ts
 imageSourceApi.getImageInfo((imageInfo : image.ImageInfo) => { 
     console.log('Succeeded in obtaining the image information.');
 })
@@ -1416,7 +1426,7 @@ getImageInfo(index?: number): Promise\<ImageInfo>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 imageSourceApi.getImageInfo(0)
     .then((imageInfo : image.ImageInfo) => {
@@ -1449,7 +1459,7 @@ getImageProperty(key:string, options?: GetImagePropertyOptions): Promise\<string
 
 **示例：**
 
-```js
+```ts
 imageSourceApi.getImageProperty("BitsPerSample")
     .then((data : string) => {
 		console.log('Succeeded in getting the value of the specified attribute key of the image.');
@@ -1473,8 +1483,9 @@ getImageProperty(key:string, callback: AsyncCallback\<string>): void
 
 **示例：**
 
-```js
-imageSourceApi.getImageProperty("BitsPerSample",(error, data : string) => { 
+```ts
+import {BusinessError} from '@ohos.base'
+imageSourceApi.getImageProperty("BitsPerSample",(error : BusinessError, data : string) => { 
     if(error) {
         console.log('Failed to get the value of the specified attribute key of the image.');
     } else {
@@ -1501,9 +1512,10 @@ getImageProperty(key:string, options: GetImagePropertyOptions, callback: AsyncCa
 
 **示例：**
 
-```js
+```ts
+import {BusinessError} from '@ohos.base'
 let property : image.GetImagePropertyOptions = { index: 0, defaultValue: '9999' }
-imageSourceApi.getImageProperty("BitsPerSample",property,(error, data : string) => { 
+imageSourceApi.getImageProperty("BitsPerSample",property,(error : BusinessError, data : string) => { 
     if(error) {
         console.log('Failed to get the value of the specified attribute key of the image.');
     } else {
@@ -1535,7 +1547,7 @@ modifyImageProperty(key: string, value: string): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 imageSourceApi.modifyImageProperty("ImageWidth", "120").then(() => {
     const w : string = imageSourceApi.getImageProperty("ImageWidth");
     console.info('w', w);
@@ -1560,7 +1572,7 @@ modifyImageProperty(key: string, value: string, callback: AsyncCallback\<void>):
 
 **示例：**
 
-```js
+```ts
 imageSourceApi.modifyImageProperty("ImageWidth", "120",() => {})
 ```
 
@@ -1589,7 +1601,7 @@ updateData(buf: ArrayBuffer, isFinished: boolean, value: number, length: number)
 
 **示例：**
 
-```js
+```ts
 const array : ArrayBuffer = new ArrayBuffer(100);
 imageSourceApi.updateData(array, false, 0, 10).then(data => {
     console.info('Succeeded in updating data.');
@@ -1617,7 +1629,7 @@ updateData(buf: ArrayBuffer, isFinished: boolean, value: number, length: number,
 
 **示例：**
 
-```js
+```ts
 const array : ArrayBuffer = new ArrayBuffer(100);
 imageSourceApi.updateData(array, false, 0, 10,(error,data )=> {
     if(data !== undefined){
@@ -1648,7 +1660,7 @@ createPixelMap(options?: DecodingOptions): Promise\<PixelMap>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 imageSourceApi.createPixelMap().then((pixelmap : image.PixelMap) => {
     console.log('Succeeded in creating pixelmap object through image decoding parameters.');
@@ -1673,8 +1685,9 @@ createPixelMap(callback: AsyncCallback\<PixelMap>): void
 
 **示例：**
 
-```js
-imageSourceApi.createPixelMap((err, pixelmap : image.PixelMap) => {
+```ts
+import {BusinessError} from '@ohos.base'
+imageSourceApi.createPixelMap((err : BusinessError, pixelmap : image.PixelMap) => {
     console.info('Succeeded in creating pixelmap object.');
 })
 ```
@@ -1696,7 +1709,7 @@ createPixelMap(options: DecodingOptions, callback: AsyncCallback\<PixelMap>): vo
 
 **示例：**
 
-```js
+```ts
 let decodingOptions : image.DecodingOptions = {
     sampleSize: 1,
     editable: true,
@@ -1706,7 +1719,7 @@ let decodingOptions : image.DecodingOptions = {
     desiredRegion: { size: { height: 1, width: 2 }, x: 0, y: 0 },
     index: 0
 };
-imageSourceApi.createPixelMap(decodingOptions, pixelmap : image.PixelMap => { 
+imageSourceApi.createPixelMap(decodingOptions, (pixelmap : image.PixelMap) => { 
     console.log('Succeeded in creating pixelmap object.');
 })
 ```
@@ -1745,7 +1758,7 @@ createPixelMapList(options?: DecodingOptions): Promise<Array\<PixelMap>>;
 
 **示例：**
 
-```js
+```ts
 let decodeOpts : image.DecodingOptions = {
     sampleSize: 1,
     editable: true,
@@ -1785,7 +1798,7 @@ createPixelMapList(callback: AsyncCallback<Array\<PixelMap>>): void
 
 **示例：**
 
-```js
+```ts
 imageSourceApi.createPixelMapList( (pixelmaplist : Array<image.PixelMap>) => {
     console.info('Succeeded in creating pixelmaplist object.');
 })
@@ -1820,7 +1833,7 @@ createPixelMapList(options: DecodingOptions, callback: AsyncCallback<Array\<Pixe
 
 **示例：**
 
-```js
+```ts
 let decodeOpts : image.DecodingOptions = {
     sampleSize: 1,
     editable: true,
@@ -1864,7 +1877,7 @@ getDelayTimeList(callback: AsyncCallback<Array\<number>>): void;
 
 **示例：**
 
-```js
+```ts
 imageSourceApi.getDelayTimeList( (delayTimes : Array<number>) => {
     console.log('Succeeded in getting delay time.');
 });
@@ -1900,7 +1913,7 @@ getDelayTimeList(): Promise<Array\<number>>;
 
 **示例：**
 
-```js
+```ts
 let delayTimes : Array<number> = imageSourceApi.getDelayTimeList();
 ```
 
@@ -1934,7 +1947,7 @@ getFrameCount(callback: AsyncCallback\<number>): void;
 
 **示例：**
 
-```js
+```ts
 imageSourceApi.getFrameCount( (frameCount : number) => {
     console.log('Succeeded in getting frame count.');
 });
@@ -1970,7 +1983,7 @@ getFrameCount(): Promise\<number>;
 
 **示例：**
 
-```js
+```ts
 let frameCount : number = imageSourceApi.getFrameCount();
 ```
 
@@ -1990,7 +2003,7 @@ release(callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 imageSourceApi.release(() => { 
     console.log('release succeeded.');
 })
@@ -2012,7 +2025,7 @@ release(): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 imageSourceApi.release().then(()=>{
     console.log('Succeeded in releasing the image source instance.');
@@ -2037,7 +2050,7 @@ createImagePacker(): ImagePacker
 
 **示例：**
 
-```js
+```ts
 const imagePackerApi : image.ImagePacker = image.createImagePacker();
 ```
 
@@ -2071,7 +2084,7 @@ packing(source: ImageSource, option: PackingOption, callback: AsyncCallback\<Arr
 
 **示例：**
 
-```js
+```ts
 const imageSourceApi : image.ImageSource = image.createImageSource(0);
 let packOpts : image.PackingOption = { format:"image/jpeg", quality:98 };
 imagePackerApi.packing(imageSourceApi, packOpts, data : ArrayBuffer => {})
@@ -2100,12 +2113,12 @@ packing(source: ImageSource, option: PackingOption): Promise\<ArrayBuffer>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 const imageSourceApi : image.ImageSource = image.createImageSource(0);
 let packOpts : image.PackingOption = { format:"image/jpeg", quality:98 }
 imagePackerApi.packing(imageSourceApi, packOpts)
-    .then( data : ArrayBuffer => {
+    .then( (data : ArrayBuffer) => {
         console.log('packing succeeded.');
 	}).catch((error : BusinessError) => {
 	    console.log('packing failed.');
@@ -2130,13 +2143,13 @@ packing(source: PixelMap, option: PackingOption, callback: AsyncCallback\<ArrayB
 
 **示例：**
 
-```js
+```ts
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
 let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
-image.createPixelMap(color, opts).then((pixelmap : image.image.PixelMap) => {
+image.createPixelMap(color, opts).then((pixelmap : image.PixelMap) => {
     let packOpts : image.PackingOption = { format:"image/jpeg", quality:98 }
-    imagePackerApi.packing(pixelmap, packOpts, data : ArrayBuffer => { 
+    imagePackerApi.packing(pixelmap, packOpts, (data : ArrayBuffer) => { 
         console.log('Succeeded in packing the image.');
     })
 })
@@ -2165,7 +2178,7 @@ packing(source: PixelMap, option: PackingOption): Promise\<ArrayBuffer>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 const color : ArrayBuffer = new ArrayBuffer(96);  //96为需要创建的像素buffer大小，取值为：height * width *4
 let bufferArr : Uint8Array = new Uint8Array(color);
@@ -2173,7 +2186,7 @@ let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size:
 image.createPixelMap(color, opts).then((pixelmap : image.PixelMap) => {
     let packOpts : image.PackingOption = { format:"image/jpeg", quality:98 }
     imagePackerApi.packing(pixelmap, packOpts)
-        .then( data : ArrayBuffer => {
+        .then( (data : ArrayBuffer) => {
             console.log('Succeeded in packing the image.');
         }).catch((error : BusinessError) => {
             console.log('Failed to pack the image..');
@@ -2197,7 +2210,7 @@ release(callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 imagePackerApi.release(()=>{ 
     console.log('Succeeded in releasing image packaging.');
 })
@@ -2219,7 +2232,7 @@ release(): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 imagePackerApi.release().then(()=>{
     console.log('Succeeded in releasing image packaging.');
@@ -2253,8 +2266,8 @@ createImageReceiver(width: number, height: number, format: number, capacity: num
 
 **示例：**
 
-```js
-var receiver image.ImageReceiver = image.createImageReceiver(8192, 8, 2000, 8);
+```ts
+let receiver : image.ImageReceiver = image.createImageReceiver(8192, 8, 2000, 8);
 ```
 
 ## ImageReceiver<sup>9+</sup>
@@ -2289,8 +2302,9 @@ getReceivingSurfaceId(callback: AsyncCallback\<string>): void
 
 **示例:**
 
-```js
-receiver.getReceivingSurfaceId((err, id : string) => { 
+```ts
+import {BusinessError} from '@ohos.base'
+receiver.getReceivingSurfaceId((err : BusinessError, id : string) => { 
     if(err) {
         console.log('getReceivingSurfaceId failed.');
     } else {
@@ -2315,7 +2329,7 @@ getReceivingSurfaceId(): Promise\<string>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 receiver.getReceivingSurfaceId().then( (id : string) => { 
     console.log('getReceivingSurfaceId succeeded.');
@@ -2340,8 +2354,9 @@ readLatestImage(callback: AsyncCallback\<Image>): void
 
 **示例：**
 
-```js
-receiver.readLatestImage((err, img : image.Image) => { 
+```ts
+import {BusinessError} from '@ohos.base'
+receiver.readLatestImage((err : BusinessError, img : image.Image) => { 
     if(err) {
         console.log('readLatestImage failed.');
     } else {
@@ -2366,7 +2381,7 @@ readLatestImage(): Promise\<Image>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 receiver.readLatestImage().then((img : image.Image) => {
     console.log('readLatestImage succeeded.');
@@ -2391,8 +2406,9 @@ readNextImage(callback: AsyncCallback\<Image>): void
 
 **示例：**
 
-```js
-receiver.readNextImage((err, img : image.Image) => { 
+```ts
+import {BusinessError} from '@ohos.base'
+receiver.readNextImage((err : BusinessError, img : image.Image) => { 
     if(err) {
         console.log('readNextImage failed.');
     } else {
@@ -2417,7 +2433,7 @@ readNextImage(): Promise\<Image>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 receiver.readNextImage().then((img : image.Image) => {
     console.log('readNextImage succeeded.');
@@ -2443,7 +2459,7 @@ on(type: 'imageArrival', callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 receiver.on('imageArrival', () => {})
 ```
 
@@ -2463,7 +2479,7 @@ release(callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 receiver.release(() => {})
 ```
 
@@ -2483,7 +2499,7 @@ release(): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 receiver.release().then(() => {
     console.log('release succeeded.');
@@ -2517,8 +2533,8 @@ createImageCreator(width: number, height: number, format: number, capacity: numb
 
 **示例：**
 
-```js
-var creator : image.ImageCreator = image.createImageCreator(8192, 8, 4, 8);
+```ts
+let creator : image.ImageCreator = image.createImageCreator(8192, 8, 4, 8);
 ```
 
 ## ImageCreator<sup>9+</sup>
@@ -2551,8 +2567,9 @@ dequeueImage(callback: AsyncCallback\<Image>): void
 
 **示例：**
 
-```js
-creator.dequeueImage((err, img : image.Image) => {
+```ts
+import {BusinessError} from '@ohos.base'
+creator.dequeueImage((err : BusinessError, img : image.Image) => {
     if (err) {
         console.info('dequeueImage failed.');
     }
@@ -2576,7 +2593,7 @@ dequeueImage(): Promise\<Image>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 creator.dequeueImage().then((img : image.Image) => {
     console.info('dequeueImage succeeded.');
@@ -2602,19 +2619,20 @@ queueImage(interface: Image, callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
+import {BusinessError} from '@ohos.base'
 creator.dequeueImage().then((img : image.Image) => {
     //绘制图片
-    img.getComponent(4).then(component : image.Component => {
-        var bufferArr : Uint8Array = new Uint8Array(component.byteBuffer);
-        for (var i = 0; i < bufferArr.length; i += 4) {
+    img.getComponent(4).then( (component : image.Component) => {
+        let bufferArr : Uint8Array = new Uint8Array(component.byteBuffer);
+        for (let i = 0; i < bufferArr.length; i += 4) {
             bufferArr[i] = 0; //B
             bufferArr[i + 1] = 0; //G
             bufferArr[i + 2] = 255; //R
             bufferArr[i + 3] = 255; //A
         }
     })
-    creator.queueImage(img, (err) => {
+    creator.queueImage(img, (err : BusinessError) => {
         if (err) {
             console.info('queueImage failed: ' + err);
         }
@@ -2646,13 +2664,13 @@ queueImage(interface: Image): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 creator.dequeueImage().then((img : image.Image) => {
     //绘制图片
     img.getComponent(4).then(component : image.Component => {
-        var bufferArr : Uint8Array = new Uint8Array(component.byteBuffer);
-        for (var i = 0; i < bufferArr.length; i += 4) {
+        let bufferArr : Uint8Array = new Uint8Array(component.byteBuffer);
+        for (let i = 0; i < bufferArr.length; i += 4) {
             bufferArr[i] = 0; //B
             bufferArr[i + 1] = 0; //G
             bufferArr[i + 2] = 255; //R
@@ -2685,8 +2703,9 @@ on(type: 'imageRelease', callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
-creator.on('imageRelease', (err) => {
+```ts
+import {BusinessError} from '@ohos.base'
+creator.on('imageRelease', (err : BusinessError) => {
     if (err) {
         console.info('on faild' + err);
     }
@@ -2710,8 +2729,9 @@ release(callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
-creator.release((err) => {
+```ts
+import {BusinessError} from '@ohos.base'
+creator.release((err : BusinessError) => {
     if (err) {
         console.info('release failed: ' + err);
     }
@@ -2734,7 +2754,7 @@ release(): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 creator.release().then(() => {
     console.info('release succeeded');
@@ -2774,8 +2794,9 @@ getComponent(componentType: ComponentType, callback: AsyncCallback\<Component>):
 
 **示例：**
 
-```js
-img.getComponent(4, (err, component : image.Component) => {
+```ts
+import {BusinessError} from '@ohos.base'
+img.getComponent(4, (err : BusinessError, component : image.Component) => {
     if(err) {
         console.log('getComponent failed.');
     } else {
@@ -2806,7 +2827,7 @@ getComponent(componentType: ComponentType): Promise\<Component>
 
 **示例：**
 
-```js
+```ts
 img.getComponent(4).then((component : image.Component) => { })
 ```
 
@@ -2828,7 +2849,7 @@ release(callback: AsyncCallback\<void>): void
 
 **示例：**
 
-```js
+```ts
 img.release(() =>{ 
     console.log('release succeeded.');
 }) 
@@ -2852,7 +2873,7 @@ release(): Promise\<void>
 
 **示例：**
 
-```js
+```ts
 import {BusinessError} from '@ohos.base'
 img.release().then(() =>{
     console.log('release succeeded.');