element上传组件循环引用及简单时间倒计时的实现

<el-upload
 class="avatar-uploader"
 action="https://jsonplaceholder.typicode.com/posts/"
 :show-file-list="false"
 :on-success="handleAvatarSuccess"
 :before-upload="beforeAvatarUpload">
 <img v-if="imageUrl" :src="imageUrl" class="avatar">
 <i v-else class="el-icon-plus avatar-uploader-icon"></i>
</el-upload>

<div class="pzsrltv" v-for="(item,index) in sValueAddedServiceData" :key="index"> <!--这一块循环出来 -->
  <div class="s_step1">
    <div class="stitle">{{item.name}}<span class="sblue" v-if="item.showimg" @click.stop="showImg.show = true;showImg.url = item.showimg">点击查看示例</span>
    </div>
    <div class="one_line">
      <img class="imagelist" v-if="svalueImg[item.value]" :src="`${viewUrl}${svalueImg[item.value]}`" >
      <el-upload
      v-if="!svalueImg[item.value]"
      class="avatar-uploader mt10"
      accept="image/jpeg,image/png,image/gif"
      :action="baseUpload"
      :show-file-list="false"
      :on-success="handlescSuccess[item.value]"
      :before-upload="beforeAvatarUpload">
      <i class="el-icon-plus avatar-uploader-icon"></i>
      </el-upload>
    </div>
  </div>
 </div>

data(){
 return {
 handlescSuccess: {},
 svalueImg: {},
 }
}

for (let i = 1; i <= 10; i++) { //循环的个数
 this.handlescSuccess[i] = function(res, file) {
  // console.log(res, _this.svalueImg)
  if (_this.svalueImg) {
   _this.$set(_this.svalueImg, i, res.file.sFile)
  }
 }
}

//以下代码写在回调里面
  for (let i = 0; i < item.iNum; i++) {
   // 图文视频上传函数
   _this.handleTWSuccess[`${i}`] = function(res, file) {
    _this.sEvaluate['2'][i].sImg.push(res.file.sFile)
   }
  }

data(){
 return {
 letTimes: { nowTime: '' },
 }
}

countDown(times) {
   const _this = this
   let timer = null
   timer = setInterval(function() {
    let day = 0,
     hour = 0,
     minute = 0,
     second = 0// 时间默认值
    if (times > 0) {
     day = Math.floor(times / (60 * 60 * 24))
     hour = Math.floor(times / (60 * 60)) - (day * 24)
     minute = Math.floor(times / 60) - (day * 24 * 60) - (hour * 60)
     second = Math.floor(times) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60)
    }
    if (day <= 9) day = '0' + day
    if (hour <= 9) hour = '0' + hour
    if (minute <= 9) minute = '0' + minute
    if (second <= 9) second = '0' + second
    _this.$set(_this.letTimes, 'nowTime', `${day !== '00' ? `${day}天:` : ''}${hour}小时：${minute}分钟：${second}秒`)
    times--
   }, 1000)
   if (times <= 0) {
    _this.$set(_this.letTimes, 'nowTime', '')
    clearInterval(timer)
   }
  },

function resetTime(time){
 var timer=null;
 var t=time;
 var m=0;
 var s=0;
 m=Math.floor(t/60%60);
 m<10&&(m='0'+m);
 s=Math.floor(t%60);
 function countDown(){
  s--;
  s<10&&(s='0'+s);
  if(s.length>=3){
  s=59;
  m="0"+(Number(m)-1);
  }
  if(m.length>=3){
  m='00';
  s='00';
  clearInterval(timer);
  }
  console.log(m+"分钟"+s+"秒");
 }
 timer=setInterval(countDown,1000);
}

this.countDown(5689)

this.resetTime(256)