用v-for进行table循环

<table class="mytable mt10">
    <template v-for="(item,index) in device_fault">
        <tr v-if="index == 0">
            <td>设备名称</td>
            <td>次数（次）</td>
            <td>占比（%）</td>
        </tr>
        <tr>
            <td v-text="item.name"></td>
            <td v-text="item.num"></td>
            <td><span class="proportion" v-text="item.num/runData.faultCount*100"></span>%</td>
        </tr>
        <tr class="fb" v-if="index == device_fault.length-1">
            <td>总计</td>
            <td v-text="runData.faultCount"></td>
            <td>100%</td>
        </tr>
    </template>
</table>