如何在Vue 3中获取数据？

import { ref, reactive } from 'vue';

// 创建单个值的响应式数据
const count = ref(0);

// 创建包含多个属性的响应式对象
const user = reactive({
  name: 'John',
  age: 25
});

import { ref, computed } from 'vue';

const count = ref(0);

// 创建计算属性
const doubledCount = computed(() => count.value * 2);

import { ref, onMounted } from 'vue';
import axios from 'axios';

export default {
  setup() {
    const data = ref([]);

    onMounted(async () => {
      const response = await axios.get('https://api.example.com/data');
      data.value = response.data;
    });

    return {
      data
    };
  }
};