序号不显示问题

src/views/pages/domainManager/index.vue

@@ -56,9 +56,6 @@
      <!-- <el-button type="info" @click="openDialog">导出</el-button> -->
     <!-- 查询结果表格 -->
     <el-table :data="tableData" stripe style="width: 100%">
-      <el-table-column label="序号" width="60">
-        <template slot-scope="{ row, index }">{{ index + 1 }}</template>
-      </el-table-column>
       <el-table-column prop="domainName" label="域名"></el-table-column>
       <el-table-column
         prop="domainCouponNumber"

src/views/pages/domainName/index.vue

@@ -60,11 +60,6 @@
         <!-- <el-button type="info" @click="openDialog">导出</el-button> -->
     <!-- 查询结果表格 -->
     <el-table :data="tableData" stripe style="width: 100%">
-      <el-table-column label="序号" width="60">
-        <template slot-scope="{ row, index }">
-          {{ typeof index === "number" ? index + 1 : "" }}
-        </template>
-      </el-table-column>
       <el-table-column prop="domainName" label="域名"></el-table-column>
       <el-table-column
         prop="domainCouponNumber"