Vue3 Element Plus表格默认显示一行实例

<el-table :data="tableData" empty-text="暂无数据">
  <!-- 列定义 -->
  <el-table-column prop="name" label="姓名"></el-table-column>
  <el-table-column prop="age" label="年龄"></el-table-column>
</el-table>

import { ref } from 'vue';

const tableData = ref([{}]); // 默认包含一个空对象

<el-table :data="tableData">
  <!-- 列定义 -->
  <el-table-column prop="name" label="姓名"></el-table-column>
  <el-table-column prop="age" label="年龄"></el-table-column>
</el-table>

<el-table :data="tableData">
  <!-- 列定义 -->
  <el-table-column prop="name" label="姓名"></el-table-column>
  <el-table-column prop="age" label="年龄"></el-table-column>
  
  <template #empty>
    <el-table-row>
      <el-table-column :span="2">暂无数据</el-table-column>
    </el-table-row>
  </template>
</el-table>

import { ref, computed } from 'vue';

const realData = ref([]); // 实际数据
const tableData = computed(() => {
  return realData.value.length > 0 ? realData.value : [{}];
});

<el-table-column prop="name" label="姓名">
  <template #default="{ row }">
    {{ row.name || '-' }}
  </template>
</el-table-column>