diff --git a/imageknife/src/main/ets/components/imageknife/utils/CalculatePixelUtils.ets b/imageknife/src/main/ets/components/imageknife/utils/CalculatePixelUtils.ets
index 119bd3b..f7b25e1 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/CalculatePixelUtils.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/CalculatePixelUtils.ets
@@ -17,6 +17,7 @@ import { AsyncTransform } from "../transform/AsyncTransform"
 import { ColorUtils } from "./ColorUtils"
 import { GPUImageSketchFilter } from '@ohos/gpu_transform'
 import image from '@ohos.multimedia.image'
+import { Size } from '../RequestOption'
 
 export namespace CalculatePixelUtils {
   export async function sketch(p: PixelMap, func?: AsyncTransform<PixelMap>) {
@@ -26,16 +27,19 @@ export namespace CalculatePixelUtils {
       height: imageInfo.size.height
     }
     if (!size) {
-      func.asyncTransform("sketch The image size does not exist.", null)
+      func?.asyncTransform("sketch The image size does not exist.", null)
       return;
     }
 
-    let pos, row, col, clr: number;
-    let width = size.width;
-    let height = size.height;
-    var pixEntry: Array<PixelEntry> = new Array()
-    var pixSrc: Array<number> = new Array()
-    var pixNvt: Array<number> = new Array()
+    let pos: number = 0
+    let row: number = 0
+    let col: number = 0
+    let clr: number = 0
+    let width: number = size.width;
+    let height: number = size.height;
+    let pixEntry: Array<PixelEntry> = new Array()
+    let pixSrc: Array<number> = new Array()
+    let pixNvt: Array<number> = new Array()
 
     let bufferData = new ArrayBuffer(p.getPixelBytesNumber());
     await p.readPixelsToBuffer(bufferData);
@@ -97,10 +101,32 @@ export namespace CalculatePixelUtils {
     }
   }
 
-  var gaussGray = (psrc: Array<number>, horz: number, vert: number,
+  let gaussGray = (psrc: Array<number>, horz: number, vert: number,
                    width: number, height: number): number => {
-    let dst, src, n_p, n_m, d_p, d_m, bd_p, bd_m, val_p, val_m, initial_p, initial_m: Array<number>;
-    let i, j, t, k, row, col, terms, std_dev, sp_p_idx, sp_m_idx, vp_idx, vm_idx: number;
+    let dst: Array<number>;
+    let src: Array<number>;
+    let n_p: Array<number>;
+    let n_m: Array<number>;
+    let d_p: Array<number>;
+    let d_m: Array<number>;
+    let bd_p: Array<number>;
+    let bd_m: Array<number>;
+    let val_p: Array<number>;
+    let val_m: Array<number>;
+    let initial_p: Array<number>;
+    let initial_m: Array<number>;
+    let i: number;
+    let j: number;
+    let t: number;
+    let k: number;
+    let row: number;
+    let col: number;
+    let terms: number;
+    let std_dev: number;
+    let sp_p_idx: number;
+    let sp_m_idx: number;
+    let vp_idx: number;
+    let vm_idx: number;
     let row_stride = width;
     let max_len = Math.max(width, height);
     val_p = createIntArray(max_len);
@@ -205,7 +231,7 @@ export namespace CalculatePixelUtils {
     return 0;
   }
 
-  var findConstants = (n_p: Array<number>, n_m: Array<number>, d_p: Array<number>,
+  let findConstants = (n_p: Array<number>, n_m: Array<number>, d_p: Array<number>,
                        d_m: Array<number>, bd_p: Array<number>
                        , bd_m: Array<number>, std_dev: number) => {
     let div = Math.sqrt(2 * 3.141593) * std_dev;
@@ -217,7 +243,7 @@ export namespace CalculatePixelUtils {
     let x5 = 3.735 / div;
     let x6 = -0.6803 / div;
     let x7 = -0.2598 / div;
-    let i;
+    let i: number;
     n_p[0] = x4 + x6;
     n_p[1] = (Math.exp(x1)
     * (x7 * Math.sin(x3) - (x6 + 2 * x4) * Math.cos(x3)) + Math
@@ -247,7 +273,11 @@ export namespace CalculatePixelUtils {
     for (i = 1; i <= 4; i++) {
       n_m[i] = n_p[i] - d_p[i] * n_p[0];
     }
-    let sum_n_p, sum_n_m, sum_d, a, b: number;
+    let sum_n_p: number;
+    let sum_n_m: number;
+    let sum_d: number;
+    let a: number;
+    let b: number;
     sum_n_p = 0.0;
     sum_n_m = 0.0;
     sum_d = 0.0;
@@ -264,9 +294,13 @@ export namespace CalculatePixelUtils {
     }
   }
 
-  var transferGaussPixels = (src1: Array<number>, src2: Array<number>,
+  let transferGaussPixels = (src1: Array<number>, src2: Array<number>,
                              dest: Array<number>, bytes: number, width: number) => {
-    let i, j, k, b, sum: number;
+    let i: number;
+    let j: number;
+    let k: number;
+    let b: number;
+    let sum: number;
     let bend = bytes * width;
     i = j = k = 0;
     for (b = 0; b < bend; b++) {
@@ -281,7 +315,7 @@ export namespace CalculatePixelUtils {
 
   export function createIntArray(len: number): Array<number> {
     let array = new Array<number>();
-    for (var index = 0; index < len; index++) {
+    for (let index = 0; index < len; index++) {
       array.push(0);
     }
     return array;
@@ -300,8 +334,8 @@ export namespace CalculatePixelUtils {
   }
 
   export async function sketchGpu(p: PixelMap, func?: AsyncTransform<PixelMap>) {
-    let imageInfo:image.ImageInfo = await p.getImageInfo();
-    let size = {
+    let imageInfo: image.ImageInfo = await p.getImageInfo();
+    let size:Size = {
       width: imageInfo.size.width,
       height: imageInfo.size.height
     }
@@ -319,7 +353,7 @@ export namespace CalculatePixelUtils {
     filter.setImageData(bufferData, w, h);
     filter.getPixelMapBuf(0, 0, w, h).then((buf) => {
       p.writeBufferToPixels(buf);
-      if (func!=undefined) {
+      if (func != undefined) {
         func.asyncTransform("success", p);
       }
     })
diff --git a/imageknife/src/main/ets/components/imageknife/utils/ColorUtils.ets b/imageknife/src/main/ets/components/imageknife/utils/ColorUtils.ets
index 0ffc41d..d7fc36e 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/ColorUtils.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/ColorUtils.ets
@@ -14,7 +14,7 @@
  */
 import resourceManager from '@ohos.resourceManager';
 import { ImageKnifeGlobal } from '../ImageKnifeGlobal';
-import type {DataCallBack} from "../interface/DataCallBack"
+import {DataCallBack} from "../interface/DataCallBack"
 
 export namespace ColorUtils {
 
@@ -24,11 +24,11 @@ export namespace ColorUtils {
    */
   export function parseColor(c: string, callback: DataCallBack<string>) {
 
-      var reColor = 'sys.color.' + c;
+      let reColor = 'sys.color.' + c;
     ((ImageKnifeGlobal.getInstance().getHapContext() as Record<string,Object>).resourceManager as resourceManager.ResourceManager).getString($r(reColor)
     .id, (err, color) => {
       if (!err) {
-        var cos = JSON.stringify(color);
+        let cos = JSON.stringify(color);
         callback.callback(cos)
       } else {
         callback.callback(err.message)
diff --git a/imageknife/src/main/ets/components/imageknife/utils/FileTypeUtil.ets b/imageknife/src/main/ets/components/imageknife/utils/FileTypeUtil.ets
index ac87e6f..526d098 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/FileTypeUtil.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/FileTypeUtil.ets
@@ -14,8 +14,8 @@
  */
 import {LogUtil} from '../../imageknife/utils/LogUtil'
 export class FileTypeUtil {
-  private map = new Map();
-  private READ_MIN_LENGTH;
+  private map:Map<string,string> = new Map<string,string>();
+  private READ_MIN_LENGTH:number = 0;
   private SUPPORT_FORMATS = [
     PhotoFormat.jpg,
     PhotoFormat.png,
@@ -45,11 +45,14 @@ export class FileTypeUtil {
 
     let dataView = new DataView(arraybuffer);
     LogUtil.log('dataView +'+this.getDataViewAt(dataView,0)+this.getDataViewAt(dataView,1))
-
-    for(var [key,value] of this.map){
+    let entries: IterableIterator<Object[]> = this.map.entries();
+    for (let i = 0; i < this.map.size; i++) {
+      let entry:Object[] = entries.next().value;
+      let key = entry[0] as string
+      let value = entry[1] as string
       let keySplit = key.split(',')
       if(keySplit.length == 2){
-        let offset = parseInt(keySplit[0])
+        let offset = Number(keySplit[0])
         let magicStringLength = keySplit[1].length;
         let readLength = magicStringLength/2;
         let start = 0;
@@ -58,8 +61,6 @@ export class FileTypeUtil {
           fileMagic+=this.getDataViewAt(dataView,offset+start)
           start++;
         }
-//        LogUtil.log('magic='+fileMagic+' keySplit[1]='+keySplit[1]+' fileMagic == keySplit[1] ='+(fileMagic == keySplit[1])+
-//        ' fileMagic type ='+typeof(fileMagic) + ' keySplit[1]='+typeof(keySplit[1]))
         if(fileMagic == keySplit[1]){
           LogUtil.log('匹配到了 fileType='+value)
           fileType = value
@@ -104,9 +105,14 @@ export class FileTypeUtil {
   }
 
   private printMapContent(){
-    for(var [key,value] of this.map){
+
+    let entries: IterableIterator<Object[]> = this.map.entries();
+    for (let i = 0; i < this.map.size; i++) {
+      let entry:Object[] = entries.next().value;
+      let key = entry[0] as string
+      let value = entry[1] as string
       LogUtil.log('key='+key+'---value='+value)
-    }
+      }
   }
 
     private initReadMinLength(){
@@ -114,7 +120,7 @@ export class FileTypeUtil {
       this.map.forEach((value,key,map)=>{
         let keySplit = key.split(',');
         if(keySplit.length == 2){
-          let offset = parseInt(keySplit[0])
+          let offset = Number(keySplit[0])
           let magicStringLength = keySplit[1].length;
           let tempMax = offset + magicStringLength/2;
           if(tempMax > max){
diff --git a/imageknife/src/main/ets/components/imageknife/utils/K2DArray.ets b/imageknife/src/main/ets/components/imageknife/utils/K2DArray.ets
index 60977ba..dc0f811 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/K2DArray.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/K2DArray.ets
@@ -31,7 +31,7 @@ export class K2DArray {
     if (row < 1) {
       return;
     }
-    for (var i = 0; i < row; i++) {
+    for (let i = 0; i < row; i++) {
       this._2dArray.push(new Array<number>())
     }
   }
@@ -40,8 +40,8 @@ export class K2DArray {
     if (c < 1) {
       return;
     }
-    for (var i = 0; i < this._2dArray.length; i++) {
-      for (var j = 0; j < c; j++) {
+    for (let i = 0; i < this._2dArray.length; i++) {
+      for (let j = 0; j < c; j++) {
         this._2dArray[i].push(value);
       }
     }
@@ -57,7 +57,7 @@ export class K2DArray {
   /**
    * 获取数组
    */
-  public getColumnsArray(r: number): Array<number>{
+  public getColumnsArray(r: number): Array<number>|null{
     if (r < 0 || r >= this.rows) {
       return null;
     }
diff --git a/imageknife/src/main/ets/components/imageknife/utils/LogUtil.ets b/imageknife/src/main/ets/components/imageknife/utils/LogUtil.ets
index 27ff820..cf7e066 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/LogUtil.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/LogUtil.ets
@@ -22,32 +22,32 @@ export class LogUtil {
   public static ALL: number = 7
   public static mLogLevel:number = LogUtil.OFF;
 
-  public static debug(message: string, ...args: any[]) {
+  public static debug(message: string, ...args: Object[]) {
     if (LogUtil.mLogLevel >= LogUtil.DEBUG) {
       console.debug(message, args)
     }
   }
 
-  public static info(message: string, ...args: any[]) {
+  public static info(message: string, ...args: Object[]) {
     if (LogUtil.mLogLevel >= LogUtil.INFO) {
       console.info(message, args)
     }
   }
 
-  public static log(message: string, ...args: any[]) {
+  public static log(message: string, ...args: Object[]) {
     if (LogUtil.mLogLevel >= LogUtil.LOG) {
       console.log(message, args)
     }
   }
 
-  public static warn(message: string, ...args: any[]) {
+  public static warn(message: string, ...args: Object[]) {
     if (LogUtil.mLogLevel >= LogUtil.WARN) {
       console.warn(message, args)
     }
   }
 
   // error 不做拦截
-  public static error(message: string, ...args: any[]) {
+  public static error(message: string, ...args: Object[]) {
     if(LogUtil.mLogLevel >= LogUtil.ERROR) {
       console.error(message, args)
     }
diff --git a/imageknife/src/main/ets/components/imageknife/utils/MaskUtils.ets b/imageknife/src/main/ets/components/imageknife/utils/MaskUtils.ets
index e8beed6..c8a9a78 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/MaskUtils.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/MaskUtils.ets
@@ -16,11 +16,12 @@ import {PixelEntry} from "../entry/PixelEntry"
 import {AsyncTransform} from "../transform/AsyncTransform"
 import {ColorUtils} from "./ColorUtils"
 import {CalculatePixelUtils} from "./CalculatePixelUtils"
+import {Size} from '../RequestOption'
 
 export class MaskUtils {
-  static async mask(bitmap: any, maskBitmap: any, func?: AsyncTransform<PixelMap>) {
+  static async mask(bitmap: PixelMap, maskBitmap: PixelMap, func?: AsyncTransform<PixelMap>) {
     let imageInfo = await bitmap.getImageInfo();
-    let size = {
+    let size:Size = {
       width: imageInfo.size.width,
       height: imageInfo.size.height
     }
@@ -62,7 +63,7 @@ export class MaskUtils {
 
 
     let imageInfoMask = await maskBitmap.getImageInfo();
-    let sizeMask = {
+    let sizeMask:Size = {
       width: imageInfoMask.size.width,
       height: imageInfoMask.size.height
     }
@@ -137,8 +138,8 @@ export class MaskUtils {
       index++;
     }
     await maskBitmap.writeBufferToPixels(bufferNewData);
-    if (func) {
-      func("", maskBitmap);
+    if (func != undefined) {
+      func?.asyncTransform("", maskBitmap);
     }
   }
 }
\ No newline at end of file
diff --git a/imageknife/src/main/ets/components/imageknife/utils/ParseImageUtil.ets b/imageknife/src/main/ets/components/imageknife/utils/ParseImageUtil.ets
index 5c6953e..ea51f37 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/ParseImageUtil.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/ParseImageUtil.ets
@@ -31,9 +31,9 @@ export class ParseImageUtil implements IParseImage<PixelMap> {
       }
       let hValue = Math.round(value.size.height * scale);
       let wValue = Math.round(value.size.width * scale);
-      let defaultSize = {
-        'height': hValue,
-        'width': wValue
+      let defaultSize:image.Size = {
+        height: hValue,
+        width: wValue
       };
 
       let opts:image.DecodingOptions = {
diff --git a/imageknife/src/main/ets/components/imageknife/utils/PixelUtils.ets b/imageknife/src/main/ets/components/imageknife/utils/PixelUtils.ets
index 65d5da6..e9e468a 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/PixelUtils.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/PixelUtils.ets
@@ -37,7 +37,7 @@ export namespace pixelUtils {
     let targetWidth:number = size.width;
     let targetHeight:number = size.height;
 
-    var pixEntry: Array<PixelEntry> = new Array()
+    let pixEntry: Array<PixelEntry> = new Array()
     let inPixels: Array<Array<number>> = CalculatePixelUtils.createInt2DArray(targetHeight, targetWidth);
 
     let bufferData = new ArrayBuffer(bitmap.getPixelBytesNumber());
@@ -71,13 +71,13 @@ export namespace pixelUtils {
       }
     }
 
-    var realPixel_W = pixel > targetWidth ? targetWidth : pixel;
-    var realPixel_H = pixel > targetHeight ? targetHeight : pixel;
+    let realPixel_W = pixel > targetWidth ? targetWidth : pixel;
+    let realPixel_H = pixel > targetHeight ? targetHeight : pixel;
 
     //横排的正方形个数
-    var x_index = Math.floor(targetWidth / realPixel_W);
+    let x_index = Math.floor(targetWidth / realPixel_W);
     //纵排的正方形个数
-    var y_index = Math.floor(targetHeight / realPixel_H);
+    let y_index = Math.floor(targetHeight / realPixel_H);
 
     for (let ch = 0; ch < y_index; ch++) {
       for (let cw = 0; cw < x_index; cw++) {
@@ -132,9 +132,9 @@ export namespace pixelUtils {
       func?.asyncTransform("success", bitmap);
     }
   }
-  export async function pixelGPU(bitmap: any, pixel: number, func?: AsyncTransform<PixelMap>) {
+  export async function pixelGPU(bitmap: PixelMap, pixel: number, func?: AsyncTransform<PixelMap>) {
 
-    let imageInfo = await bitmap.getImageInfo();
+    let imageInfo:image.ImageInfo = await bitmap.getImageInfo();
     let size:Size = {
       width: imageInfo.size.width,
       height: imageInfo.size.height
diff --git a/imageknife/src/main/ets/components/imageknife/utils/gif/GIFFrame.ts b/imageknife/src/main/ets/components/imageknife/utils/gif/GIFFrame.ts
index dd753bb..394c313 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/gif/GIFFrame.ts
+++ b/imageknife/src/main/ets/components/imageknife/utils/gif/GIFFrame.ts
@@ -12,15 +12,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+import image from '@ohos.multimedia.image';
+export  interface Dims{
+    width: number;
+    height: number;
+    top: number;
+    left: number
+}
 export class GIFFrame {
 
     // 显示帧 width 宽  height 高 top上边距 left左边距
-    dims: {
-        width: number;
-        height: number;
-        top: number;
-        left: number
-    }
+    dims: Dims
 
     // 当前帧的像素数据指向的颜色数组 只为了生成patch,非必要
     colorTable?: [number, number, number][]
@@ -35,7 +37,7 @@ export class GIFFrame {
     patch?: Uint8ClampedArray
 
     // drawPixelMap 如果像素转换为PixelMap后使用PixelMap展示， patch和drawPixelMap 2选1
-    drawPixelMap?
+    drawPixelMap?:image.PixelMap
 
     // 当前帧每个像素的颜色表查找索引 只为了生成patch,非必要
     pixels?: number[]
diff --git a/imageknife/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets b/imageknife/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
index bf2b01d..68cb0be 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
@@ -13,21 +13,33 @@
  * limitations under the License.
  */
 import type { IParseGif } from './IParseGif'
-import { GIFFrame } from './GIFFrame'
+import { Dims, GIFFrame } from './GIFFrame'
 import { LoadType } from '../../../../../../../GifWorker'
 import { parseBufferToFrame } from './parse/GIFParse'
 import { LogUtil } from '../../utils/LogUtil'
 import image from '@ohos.multimedia.image'
 import { ImageKnifeGlobal } from '../../ImageKnifeGlobal'
 import { BusinessError } from '@ohos.base'
-import worker from '@ohos.worker';
+import worker, { ErrorEvent, MessageEvents } from '@ohos.worker';
 
+export interface senderData{
+  type:string,
+  data:ArrayBuffer;
+}
+
+export interface gifBackData{
+  dims:Dims[],
+  delay:number[],
+  disposalType:number[],
+  patch:Uint8ClampedArray[],
+  transparentIndex:number[]
+}
 export class GIFParseImpl implements IParseGif {
   parseGifs(imageinfo: ArrayBuffer, callback: (data?:GIFFrame[], err?:BusinessError|string) => void, worker?:worker.ThreadWorker,runMainThread?:boolean) {
     let resolveWorker = worker;
     LogUtil.log('parseGifs resolveWorker1 is null =' + (resolveWorker == null))
-    if (!resolveWorker) {
-      resolveWorker = ImageKnifeGlobal.getInstance().getImageKnife().getGifWorker();
+    if (!resolveWorker && ImageKnifeGlobal.getInstance().getImageKnife() != undefined) {
+      resolveWorker = ImageKnifeGlobal.getInstance().getImageKnife()?.getGifWorker();
     }
     LogUtil.log('parseGifs resolveWorker2 is null =' + (resolveWorker == null))
 
@@ -38,18 +50,22 @@ export class GIFParseImpl implements IParseGif {
         if (err) {
           callback(undefined, err)
         } else {
-          this.createPixelMapAll(data).then((pixelmaps) => {
-            if (pixelmaps.length == data.length) {
-              for (let i = 0;i < data.length; i++) {
-                let frame = data[i];
-                frame['drawPixelMap'] = pixelmaps[i];
-                frame['patch'] = null;
+          if (data != undefined) {
+            this.createPixelMapAll(data).then((pixelmaps) => {
+              if (pixelmaps.length == data.length) {
+                for (let i = 0;i < data.length; i++) {
+                  let frame = data[i];
+                  frame['drawPixelMap'] = pixelmaps[i];
+                  frame['patch'] = undefined;
+                }
+                callback(data, undefined)
               }
-              callback(data, undefined)
-            }
-          }).catch(err => {
-            callback(undefined, err)
-          })
+            }).catch((err: BusinessError) => {
+              callback(undefined, err)
+            })
+          }else{
+            callback(undefined, 'GIF Parse Error callback data is undefined')
+          }
         }
       })
     } else {
@@ -61,55 +77,58 @@ export class GIFParseImpl implements IParseGif {
           for (let i = 0;i < frames.length; i++) {
             let frame = frames[i];
             frame['drawPixelMap'] = pixelmaps[i];
-            frame['patch'] = null;
+            frame['patch'] = undefined;
           }
           LogUtil.log('parseGifs in main thread! callback is done!')
           callback(frames, undefined)
         }
-      }).catch(err => {
+      }).catch((err:BusinessError) => {
         LogUtil.log('parseGifs in main thread! err =' + err)
         callback(undefined, err)
       })
     }
   }
 
-  private createPixelMapAll(frames): Promise<PixelMap[]> {
-    let promises = []
-    let filterCriteria = (item) => {
+  private createPixelMapAll(frames:GIFFrame[]): Promise<PixelMap[]> {
+    let promises:Promise<PixelMap>[] = new Array();
+    let filterCriteria = (item:GIFFrame) => {
       if (!item['drawPixelMap']) {
         return true;
       }
+      return false;
     }
-    frames.filter(filterCriteria, frames).flatMap((frame) => {
-      promises.push(image.createPixelMap(frame.patch.buffer, {
-        'size': {
-          'height': frame.dims.height as number,
-          'width': frame.dims.width as number
-        }
-      }))
+    frames.filter(filterCriteria, frames).flatMap<void,undefined>((frame:GIFFrame) => {
+      if(frame.patch != undefined) {
+        promises.push(image.createPixelMap(frame.patch.buffer, {
+          'size': {
+            'height': frame.dims.height as number,
+            'width': frame.dims.width as number
+          }
+        }))
+      }
     })
-    return Promise.all(promises)
+    return Promise.all<PixelMap>(promises)
   }
 
-  private useWorkerParse(worker: any, buffer: ArrayBuffer, callback: (data?, err?) => void) {
+  private useWorkerParse(worker:worker.ThreadWorker, buffer: ArrayBuffer, callback: (data?:GIFFrame[], err?:BusinessError|string) => void) {
 
-    worker.onerror = function (data) {
-      callback(undefined, data)
+    worker.onerror = (err:ErrorEvent)=>{
+      callback(undefined, err)
     }
 
-    worker.onmessageerror = function (event) {
+    worker.onmessageerror =  (event: MessageEvents) => {
       callback(undefined, event)
     }
 
-    worker.onexit = function () {
+    worker.onexit =  ()=> {
       LogUtil.log('gifWork worker.onexit!')
     }
 
-    worker.onmessage = (e) => {
-      var data = e.data;
-      switch (data.type) {
+    worker.onmessage = (e: MessageEvents) => {
+      let data:Record<string,Object> = e.data;
+      switch (data.type as string) {
         case LoadType.loadBufferByWorker:
-          let pages = data.data;
+          let pages:gifBackData = (data.data as gifBackData);
           if (this.gifDecodeCorrect(pages)) {
             let images = this.recDecodedData(pages);
             callback(images, undefined)
@@ -122,12 +141,12 @@ export class GIFParseImpl implements IParseGif {
       }
     }
 
-    var obj = { type: LoadType.loadBufferByWorker, data: buffer }
+    let obj:senderData = { type: LoadType.loadBufferByWorker, data: buffer }
     worker.postMessage(obj, [buffer])
 
   }
 
-  private gifDecodeCorrect(frames) {
+  private gifDecodeCorrect(frames:gifBackData) {
     if (
     (frames.patch.length == frames.dims.length) &&
     (frames.patch.length == frames.delay.length) &&
@@ -141,24 +160,19 @@ export class GIFParseImpl implements IParseGif {
   }
 
   // 子线程数据回传处理
-  private recDecodedData(pages): GIFFrame[] {
-    let images = []
+  private recDecodedData(pages:gifBackData): GIFFrame[] {
+    let images:GIFFrame[] = new Array()
     for (let i = 0; i < pages.patch.length; i++) {
-      let frame = {}
+      let frame = new GIFFrame();
       frame['dims'] = pages.dims[i]
-      pages.dims[i] = null
       frame['delay'] = pages.delay[i]
-      pages.delay[i] = null
       frame['disposalType'] = pages.disposalType[i]
-      pages.disposalType[i] = null
       let uint8ClampedArray = new Uint8ClampedArray(pages.patch[i])
       frame['patch'] = uint8ClampedArray
-      pages.patch[i] = null
+      pages[i] = new Uint8ClampedArray(0)
       frame['transparentIndex'] = pages.transparentIndex[i]
-      pages.transparentIndex[i] = null
       images.push(frame)
     }
-    pages = null
     return images;
   }
 }
\ No newline at end of file
diff --git a/imageknife/src/main/ets/components/imageknife/utils/svg/IParseSvg.ets b/imageknife/src/main/ets/components/imageknife/utils/svg/IParseSvg.ets
index 116281f..2daae68 100644
--- a/imageknife/src/main/ets/components/imageknife/utils/svg/IParseSvg.ets
+++ b/imageknife/src/main/ets/components/imageknife/utils/svg/IParseSvg.ets
@@ -12,7 +12,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+import {Size} from '../../RequestOption'
 export interface IParseSvg {
   // 解析svg
-  parseSvg(imageinfo: ArrayBuffer,size?:{width:number,height:number}): Promise<PixelMap>
+  parseSvg:(imageinfo: ArrayBuffer,size?:Size)=> Promise<PixelMap>
 }
\ No newline at end of file