ant-design-vue/antdv-demo/docs/tabs/demo/position.md

#### 位置 有四个位置，`tabPosition="left|right|top|bottom"`。 #### Position Tab's position: left, right, top or bottom.

<template>
  <div style="width: 500px">
    <a-radio-group v-model="tabPosition" style="margin:8px">
      <a-radio-button value="top">
        top
      </a-radio-button>
      <a-radio-button value="bottom">
        bottom
      </a-radio-button>
      <a-radio-button value="left">
        left
      </a-radio-button>
      <a-radio-button value="right">
        right
      </a-radio-button>
    </a-radio-group>
    <a-tabs default-active-key="1" :tab-position="tabPosition">
      <a-tab-pane key="1" tab="Tab 1">
        Content of Tab 1
      </a-tab-pane>
      <a-tab-pane key="2" tab="Tab 2">
        Content of Tab 2
      </a-tab-pane>
      <a-tab-pane key="3" tab="Tab 3">
        Content of Tab 3
      </a-tab-pane>
    </a-tabs>
  </div>
</template>
<script>
export default {
  data() {
    return {
      tabPosition: 'top',
    };
  },
  methods: {
    callback(val) {
      console.log(val);
    },
  },
};
</script>