问无法加载音频- DOMException:由于没有找到支持的源，加载失败

EN

this.sound = new Audio();
this.sound.src = 'src/assets/sound/welcome_Rift.mp3';
this.sound.load();
this.sound.play()
  .then(() => {
    // Audio is playing.
  })
  .catch(error => {
    console.log(error);
  });

this.sound = new Audio();
this.sound.src = 'src/assets/sound/welcome_Rift.mp3';
this.sound.load();
const promise = this.sound.play();
if (promise !== undefined) { // On older browsers play() does not return anything, so the value would be undefined.
  promise
    .then(() => {
      // Audio is playing.
    })
    .catch(error => {
      console.log(error);
    });
}