HarmonyOS 短音效如何加载和播放

获取文件 
let file = this.context.resourceManager.getRawFdSync('音频名称'); 
获取soundid 
this.soundPool.load(file.fd, file.offset, file.length).then((soundId: number) => { 
  this.soundId = soundId 
})

import { media } from '@kit.MediaKit'; 
import { audio } from '@kit.AudioKit'; 
import { common } from '@kit.AbilityKit'; 
let audioRendererInfo: audio.AudioRendererInfo = { 
  usage: audio.StreamUsage.STREAM_USAGE_MOVIE, 
  rendererFlags: 0 
} 
let context: common.UIAbilityContext = getContext(this) as common.UIAbilityContext; 
@Entry 
@Component 
struct Index { 
  soundId : number = 0; 
  soundPool?: media.SoundPool 
  async aboutToAppear(): Promise<void> { 
    let file = context.resourceManager.getRawFdSync('音频文件'); 
    this.soundPool = await media.createSoundPool(32,audioRendererInfo); 
    this.soundId = await this.soundPool.load(file.fd, file.offset, file.length) 
  } 
  build() { 
    Column() { 
      Button("播放").onClick(() => { 
        this.soundPool?.play(this.soundId) 
      }) 
    } 
  } 
}