如何通过vue和Element-plus实现数据的分页和加载更多

# main.js

import { createApp } from 'vue'
import App from './App.vue'
import ElementPlus from 'element-plus'
import 'element-plus/lib/theme-chalk/index.css'

createApp(App).use(ElementPlus).mount('#app')

<!-- DataList.vue -->

<template>
  <div>
    <ul>
      <li v-for="item in currentPageData" :key="item.id">{{ item.name }}</li>
    </ul>
    <el-pagination
      :current-page="currentPage"
      :page-sizes="[10, 20, 30, 40]"
      :page-size="pageSize"
      :total="total"
      layout="sizes, prev, pager, next, jumper"
      @current-change="handleCurrentChange"
    ></el-pagination>
    <el-button
      v-show="showLoadMore"
      @click="handleLoadMore"
      type="text"
    >加载更多</el-button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      currentPage: 1, // 当前页码
      total: 0, // 总记录数
      pageSize: 10, // 每页条数
      showLoadMore: false, // 是否显示加载更多按钮
      dataList: [], // 数据列表
    }
  },
  computed: {
    currentPageData() { // 当前页的数据
      return this.dataList.slice(
        (this.currentPage - 1) * this.pageSize,
        this.currentPage * this.pageSize
      )
    },
  },
  mounted() {
    this.getDataList() // 初始化数据
  },
  methods: {
    async getDataList() {
      // 这里模拟获取数据，实际开发中可替换为接口请求
      // 示例：通过axios请求数据
      const response = await axios.get('/api/dataList')
      
      this.dataList = response.data
      this.total = this.dataList.length
      
      this.showLoadMore = this.currentPage * this.pageSize < this.total // 是否显示加载更多按钮
    },
    handleCurrentChange(currentPage) { // 页码改变时触发
      this.currentPage = currentPage
    },
    handleLoadMore() { // 加载更多
      this.currentPage++
      this.showLoadMore = this.currentPage * this.pageSize < this.total // 是否显示加载更多按钮
    },
  },
}
</script>

<style scoped>

</style>