HarmonyOS 如何拉起应用市场？

import { BusinessError } from '@kit.BasicServicesKit'; 
import { common, Want } from '@kit.AbilityKit'; 
const TAG = '[StoreDemo]'; 
@Entry 
@Component 
struct Index { 
  dialogController: CustomDialogController | null = new CustomDialogController({ 
    builder: RouterDialog({ 
      jumpAppStore: (appid:string) => { 
        this.loadProduct(appid) 
      }, 
    }), 
    autoCancel: true, 
    alignment: DialogAlignment.Bottom, 
    offset: { dx: 0, dy: 0 }, 
    customStyle: true 
  }) 
  build() { 
    Column() { 
      Button('弹窗').onClick(() => { 
        this.dialogController?.open() 
      }) 
    }.justifyContent(FlexAlign.Center) 
    .width('100%') 
    .height('100%') 
  } 
  loadProduct(appid:string) { 
    try { 
      let uri = 'store://appgallery.huawei.com/app' //跳转到应用市场首页 
      if (appid.length > 0) { 
        uri = `store://appgallery.huawei.com/app/detail?id=${appid}`//跳转到应用市场具体app的详情页 
      } 
      const request: Want = { 
        uri: uri 
      }; 
      const context = getContext(this) as common.UIAbilityContext; 
      context.startAbility(request).then(()=>{ 
        console.debug('success startAbility') 
      }).catch((err:BusinessError)=>{ 
        console.debug('error startAbility' + err.message) 
      }); 
 
    } catch (err) { 
      console.error(TAG, `loadProduct failed. code is ${err.code}, message is ${err.message}`); 
    } 
  } 
 
} 
 
@CustomDialog 
struct RouterDialog { 
  private controller: CustomDialogController 
  jumpAppStore = (appid: string) => { 
  } 
  build() { 
    Column({space:10}) { 
      Button('跳转应用市场首页') 
        .width(300) 
        .height(50) 
        .onClick(() => { 
          this.jumpAppStore(''); 
        }) 
      Button('跳转某书详情页') 
        .width(300) 
        .height(50) 
        .onClick(() => { 
          this.jumpAppStore('C5765880207852917075'); 
        }) 
      Button('跳转视频详情页') 
        .width(300) 
        .height(50) 
        .onClick(() => { 
          this.jumpAppStore('C1081898888199154560'); 
        }) 
    }.width('100%') 
    .backgroundColor('#ff57ea66') 
  } 
}
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