小程序-关于组件设置定时器setInterval

lifetimes: {
attached: function() {
this.addInterval();
},
detached: function() {
// 在组件实例被从页面节点树移除时执行
clearInterval(this.data.timeOut)//清除定时器
    },
},
methods: {
addInterval(e){
//当e==remove时，把原来的定时器删掉
const {timeNum}=this.properties;
this.setData({time:timeNum})
//设置倒计时十秒钟
if(e!="remove"){
var timeOut=setInterval(() => {
if(this.data.time==0||e=="remove") {
clearInterval(timeOut);
this.triggerEvent(‘timeEnd‘,{},{})
return
}
this.setData({time:this.data.time-1})
}, 1000);
this.setData({timeOut:timeOut})
}
},