demo报错修改

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;