ElementUI选中当前选中行

<el-table :data="isMixed ? copyMixedDetailList:copyDetailList" ref="refTable">
    <el-table-column type="selection" width="50" align="center" :reserve-selection="true"></el-table-column>
    <el-table-column type="index" :index="indexMethod" label="序号"></el-table-column>
    </el-table-column>
</el-table>

let currentSelect = this.$refs.refTable.selection;
let currentSelect = this.$refs.ref的值.selection;