check选择

<ul  v-if="listPay.length>0">
  <li v-for="(item,index) in listPay"> <img  :src="checkTs[index]===true?checkImg:uncheckImg" @click="checkXy(index)"/><span>{{listPay[index].stuName}}</span></li>
</ul>

checkTs: [],

checkXy(val) {
  debugger

  if (this.checkTs[val] === true) {
    this.$set(this.checkTs, val, false)

    return
  }
  if (this.checkTs[val] === false || this.checkTs[val] === undefined) {

    for (let i = 0; i < this.listPay.length; i++)
    {
      this.$set(this.checkTs, i, false)
    }
    this.$set(this.checkTs, val, true)
    return
  }

},