在表中使用v-for

<template>
  <table>
    <tr v-for="(item, index) in items" :key="index">
      <td>{{ item.name }}</td>
      <td>{{ item.age }}</td>
    </tr>
  </table>
</template>

<script>
export default {
  data() {
    return {
      items: [
        { name: '张三', age: 20 },
        { name: '李四', age: 25 },
        { name: '王五', age: 30 }
      ]
    };
  }
};
</script>

<template>
  <table>
    <tr v-for="(value, key, index) in obj" :key="index">
      <td>{{ key }}</td>
      <td>{{ value }}</td>
    </tr>
  </table>
</template>

<script>
export default {
  data() {
    return {
      obj: {
        name: '张三',
        age: 20,
        gender: '男'
      }
    };
  }
};
</script>