diff --git a/library/src/main/ets/components/imageknife/RequestOption.ets b/library/src/main/ets/components/imageknife/RequestOption.ets
index 97f6d48..75b7e73 100644
--- a/library/src/main/ets/components/imageknife/RequestOption.ets
+++ b/library/src/main/ets/components/imageknife/RequestOption.ets
@@ -61,6 +61,7 @@ import { FileUtils } from '../cache/FileUtils'
 import util from '@ohos.util'
 import { DataFetchResult } from './networkmanage/DataFetchResult'
 import { BaseDownsampling } from './Downsampling/BaseDownsampling'
+import { DownsampleNone } from './Downsampling/DownsampleStartegy'
 
 export interface Size {
   width: number,
@@ -108,7 +109,7 @@ export class RequestOption {
   loadSrc: string | PixelMap | Resource = '';
   strategy: DiskStrategy = new AUTOMATIC();
   //下采样相关
-  downsampType: BaseDownsampling = new BaseDownsamplings()
+  downsampType: BaseDownsampling = new DownsampleNone()
   dontAnimateFlag = false;
   placeholderSrc: string | PixelMap | Resource | undefined = undefined;
   placeholderFunc: AsyncSuccess<ImageKnifeData> | undefined = undefined;
diff --git a/library/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets b/library/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
index 495049f..cfd485c 100644
--- a/library/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
+++ b/library/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
@@ -51,7 +51,7 @@ export class GIFParseImpl implements IParseGif {
     let hValue: number = 0
     let wValue: number = 0
     imageSource.getImageInfo().then((value) => {
-      hValue = Math.round(value.size. height);
+      hValue = Math.round(value.size.height);
       wValue = Math.round(value.size.height);
       console.log('原始宽高：', JSON.stringify(value.size))
       console.log('classType', JSON.stringify(_request?.downsampType.getName()))