//循环这个动作的所有音频地址，如果有满足条件的则播放

let voice = this.motionList[this.motionNum].motionVoice

for (let index in voice) {

//如果倒计时的时间，满足了音频播放的时间

if (timeCha == voice[index].time) {

this.childPlay(voice[index].address); //播放

break

}

}

//音频播放

childPlay(src) {

this.playAudio.audioObj.title = "运动音频";

this.playAudio.audioObj.src = src;

this.playAudio.audioObj.play()

},