<div class="common_title">
            退款说明 <span>(选填)</span>
        </div>
        <div class="tk_text">
            <textarea maxlength="100" placeholder="请输入退款备注" v-model="tkinfotest"></textarea>
            <span>{{texsum}}/100</span>
</div>

<script>
export default {
    data () {
        return {
            tkinfotest:"",//退款说明
            texsum:0,//退款说明长度
        }
    },
    methods:{

    },
    watch:{
        tkinfotest(){
            this.texsum = this.tkinfotest.length;
        }
    }
}
</script>

<style>
.tk_text{
    margin: 0 .1rem;
    position: relative;

}
.tk_text textarea{
    font-size: .24rem;
    color: #999999;
    height: 2.4rem;
    width: 100%;
    padding: .2rem;
    border-radius: .2rem;
}
.tk_text span{
    font-size: .22rem;
    color: #999999;
    position: absolute;
    bottom: .4rem;
    right: .3rem;;
}
</style>

<div class="applyInput cb mt3">
    <textarea placeholder="请输入" maxlength="500" @input="descInput" v-model="desc" />
    <span class="numberV">{{txtVal}}/500</span>
 </div>

<script>
export default {
  name: '',
  data () {
    return {
      txtVal: 0,
      desc:""
    }
  },
  methods: {
    descInput(){
        this.txtVal = this.desc.length;
        }
    }
}
</script>