如何拉起应用市场界面

import { common, Want } from '@kit.AbilityKit'; 
import { BusinessError } from '@kit.BasicServicesKit'; 
 
// 拉起应用市场对应的应用详情界面 
function startAppGalleryDetailAbility(context: common.UIAbilityContext, appId: string): void { 
  let want: Want = { 
    action: 'ohos.want.action.appdetail', 
    uri: 'store://appgallery.huawei.com/app/detail?id=C' + appId, //  appId为需要打开应用详情的应用的appId 
  }; 
  context.startAbility(want) 
    .then(() => { 
      // ... 
    }) 
    .catch((err: BusinessError) => { 
      console.error(`Failed to startAbility. Code: ${err.code}, message: ${err.message}`); 
    }); 
} 
 
@Entry 
@Component 
struct Index { 
  @State message: string = 'Hello World'; 
 
  build() { 
    Row() { 
      Column() { 
        Button(this.message) 
          .fontSize(50) 
          .fontWeight(FontWeight.Bold) 
          .onClick(() => { 
            const context: common.UIAbilityContext = getContext(this) as common.UIAbilityContext; 
            startAppGalleryDetailAbility(context, appId); 
          }) 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
}