
改为一下代码即可
<el-table-column label="序号" type="index" width="50" align="center">
<template slot-scope="scope">
<span>{{ scope.$index + 1}}</span>
</template>
</el-table-column>

改为一下代码即可
<el-table-column label="序号" type="index" width="50" align="center">
<template slot-scope="scope">
<span>{{ scope.$index + 1}}</span>
</template>
</el-table-column>