ant-design-vue/components/auto-complete/demo/options.md

#### 自定义选项 也可以直接传递slot="dataSource"的Option #### Customized You could pass `slot="dataSource` as children of `AutoComplete`, instead of using `dataSource`。

<template>
  <a-auto-complete
    style="width: 200px"
    @search="handleSearch"
    placeholder="input here"
  >
    <template slot="dataSource">
      <a-select-option v-for="email in result"  :key="email">{{email}}</a-select-option>
    </template>
  </a-auto-complete>
</template>
<script>
export default {
  data() {
    return {
      result: [],
    }
  },
  methods: {
    handleSearch(value) {
      let result;
      if (!value || value.indexOf('@') >= 0) {
        result = [];
      } else {
        result = ['gmail.com', '163.com', 'qq.com'].map(domain => `${value}@${domain}`);
      }
      this.result = result
    },
  }
}
</script>