<el-table :data="xpList" border style="width: 100%" height="500" >
<el-table-column prop="" label="序号" :formatter="nShowIndex" width="80"></el-table-column>
<el-table-column label="序号1" align="center" width="80">
<template slot-scope="scope">
{{scope.$index + 1 + page.pageSize*(page.currentPage-1)}}
</template>
</el-table-column>
<el-table-column prop="name" label="姓名" width="180"></el-table-column>
<el-table-column prop="age" label="年龄" width="120"></el-table-column>
</el-table>
方法：
nShowIndex(row, column, cellValue, index){
return index + 1;
}