在Vue项目中使用Element-UI如何实现一个分页显示效果

<el-card>
 <div class="block">
 <span >
  <span class="demonstration" style='margin-right:10px'>
  开始日期
  </span>
  <el-date-picker v-model="value1" type="datetime"
  placeholder="选择日期" format="yyyy-MM-dd HH:mm:ss"
  value-format="yyyy-MM-dd hh:mm:ss">
  </el-date-picker>
 </span>
 <span >
  <span class="demonstration" style='margin-right:10px'>
 截止日期</span>
  <el-date-picker v-model="value2" type="datetime"
 placeholder="选择日期" value-format="yyyy-MM-dd HH:mm:ss"
  format="yyyy-MM-dd hh:mm:ss">
  </el-date-picker>
 </span>
 <el-button type="primary" 
 @click="lineCrodList">
 搜索
 </el-button>
 </div>
 <el-table :data="lineData" >
 <el-table-column prop="onTime" label="上机时间">
 </el-table-column>
 <el-table-column prop="downTime" label="下机时间">
 </el-table-column>
 <el-table-column prop="spendCash" label="花费时间">
 </el-table-column>
 <el-table-column prop="spendCash" label="花费金额">
 </el-table-column>
 </el-table>
 
 <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="currentPage"
 :page-sizes="[1, 2, 5, 10]" :page-size="pageSize"
 layout="total, sizes, prev, pager, next, jumper"
 :total="total">
 </el-pagination>
 
</el-card>

<el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="currentPage"
 :page-sizes="[1, 2, 5, 10]" :page-size="pageSize"
 layout="total, sizes, prev, pager, next, jumper"
 :total="total">
</el-pagination>

<script>
export default {
 data () {
 return {
 value1: '',
 value2: '',
 lineData: [],
 username: '',
 total: 0, //实现动态绑定
 pageSize: 2,
 currentPage: 1,
 
 }
 },
 methods: {
 //当改变每页显示条数的选择器时会触发的事件
 handleSizeChange (size) {
 // 每页显示的数量是我们选择器选中的值size
 this.pageSize = size;
 console.log(this.pageSize);//每页下拉显示数据
 this.lineCrodList();
 },
//当改变当前页数的时候触发的事件
 handleCurrentChange (currentPage) {
 this.currentPage = currentPage;
 console.log(this.currentPage);//点击第几页
 this.lineCrodList();
 },
//获取用户上机记录的信息分页
 async lineCrodList () {
 
 //调用 获取total数据的方法
 this.counttotal();
 await this.$http.post('/Line/SelectInfo', {
 userName: this.username,
 onTime: this.value1,
 downTime: this.value2,
 spendCash: 0,
 start: （this.currentPage-1）* this.pageSize,
 pageSize: this.pageSize
 }).then(res => {
 this.lineData = res.data;
 console.log(res.data)
 })
 },
 //获取用户总条数
 async counttotal () {
 await this.$http.post('/Line/selectTotal', {
 userName: this.username,
 onTime: this.value1,
 downTime: this.value2,
 }).then(res => {
 this.total = res.data;
 })
}

#分页显示新闻数据，每页显示两条，这里显示第一页
SELECT id,title,author,createdate FROM news_detail LIMIT 0,2
#分页显示新闻数据，每页显示两条，这里显示第二页
SELECT id,title,author,createdate FROM news_detail LIMIT 2,2
#分页显示新闻数据，每页显示两条，这里显示第三页
SELECT id,title,author,createdate FROM news_detail LIMIT 4,2
#公用的分页sql
#第二个数：分页后每页显示几条新闻（页面容量） pageSize
#第一个数：从第几条数据开始显示（当前页码pageNo-1）*pageSize
SELECT id,title,author,createdate FROM news_detail 
LIMIT （pageNo-1）*pageSize,pageSize