<template><div> <el-input v-model="tableDataName" placeholder="請輸入姓名" style="width:240px"></el-input> <el-button type="primary" @click="doFilter">搜索</el-button> <el-button type="primary" @click="openData">展示數據</el-button> <el-table :data="tableDataEnd" border style="width: 100%"> <el-table-column  prop="date"  label="日期"  width="180"> </el-table-column> <el-table-column  prop="name"  label="姓名"  width="180"> </el-table-column> <el-table-column  prop="address"  label="地址"> </el-table-column> </el-table> <el-pagination  @size-change="handleSizeChange"  @current-change="handleCurrentChange"  :current-page="currentPage"  :page-sizes="[1, 2, 3, 4]"  :page-size="pageSize"  layout="total, sizes, prev, pager, next, jumper"  :total="totalItems"> </el-pagination></div></template><script>export default { data() { return {  tableDataBegin: [  {   date: "2016-05-01",   name: "王小虎",   address: "上海市普陀區金沙江路 1518 弄"  },  {   date: "2016-05-02",   name: "王小虎",   address: "上海市普陀區金沙江路 1517 弄"  },  {   date: "2016-05-03",   name: "王二虎",   address: "上海市普陀區金沙江路 1519 弄"  },  {   date: "2016-05-04",   name: "王二虎",   address: "上海市普陀區金沙江路 1516 弄"  },  {   date: "2016-05-05",   name: "王三虎",   address: "上海市普陀區金沙江路 1518 弄"  },  {   date: "2016-05-06",   name: "王三虎",   address: "上海市普陀區金沙江路 1517 弄"  },  {   date: "2016-05-07",   name: "王小虎",   address: "上海市普陀區金沙江路 1519 弄"  },  {   date: "2016-05-08",   name: "王小虎",   address: "上海市普陀區金沙江路 1516 弄"  }  ],  tableDataName: "",  tableDataEnd: [],  currentPage: 4,  pageSize: 2,  totalItems: 0,  filterTableDataEnd:[],  flag:false }; }, created() { this.totalItems = this.tableDataBegin.length; if (this.totalItems > this.pageSize) {  for (let index = 0; index < this.pageSize; index++) {  this.tableDataEnd.push(this.tableDataBegin[index]);  } } else {  this.tableDataEnd = this.tableDataBegin; } }, methods: { //前端搜索功能需要區分是否檢索,因為對應的字段的索引不同 //用兩個變量接收currentChangePage函數的參數 doFilter() {  if (this.tableDataName == "") {  this.$message.warning("查詢條件不能為空！");  return;  }  this.tableDataEnd = []  //每次手動將數據置空,因為會出現多次點擊搜索情況  this.filterTableDataEnd=[]  this.tableDataBegin.forEach((value, index) => {  if(value.name){   if(value.name.indexOf(this.tableDataName)>=0){   this.filterTableDataEnd.push(value)   }  }  });  //頁面數據改變重新統計數據數量和當前頁  this.currentPage=1  this.totalItems=this.filterTableDataEnd.length  //渲染表格,根據值  this.currentChangePage(this.filterTableDataEnd)  //頁面初始化數據需要判斷是否檢索過  this.flag=true }, openData() {}, handleSizeChange(val) {  console.log(`每頁 ${val} 條`);  this.pageSize = val;  this.handleCurrentChange(this.currentPage); }, handleCurrentChange(val) {  console.log(`當前頁: ${val}`);  this.currentPage = val;  //需要判斷是否檢索  if(!this.flag){  this.currentChangePage(this.tableDataEnd)  }else{  this.currentChangePage(this.filterTableDataEnd)    } }, //組件自帶監控當前頁碼 currentChangePage(list) {  let from = (this.currentPage - 1) * this.pageSize;  let to = this.currentPage * this.pageSize;  this.tableDataEnd = [];  for (; from < to; from++) {  if (list[from]) {   this.tableDataEnd.push(list[from]);  }  } } }};</script>