页面中实现的分页效果，要么后端提供接口，每次点击下一页就调用接口，若不提供接口，分页得前端自己去截取。
方法一：slice方法
slice(参数1，参数2)方法是返回一个新的数组对象，左开右闭
参数1：起始下标数
参数2：结束下标数(不计算在内)
如data:[1,2,3,4,5,6,7,8]，那么data.slice(0,3)就为下标为0，1，2,不包括下标为3的数，即[1,2,3]，可以看成数学中的[0,3)
slice方法详细讲解
这个原理就和分页原理很相似，分页也是把一个很长的数组，按照每页多少条（size）分为若干个短数组
//allData为全部数据，tableData是目前表格绑定的数据
(this.page - 1) * this.size,
this.page * this.size
);
this.total=this.allData.length
下面是详细代码：
比如：data=[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19]
总条目数total=20，
若设size=3（每页3条）
方法二：splice方法
splice方法可以理解为删除，与方法一的slice只差一个p字母
用splice分页，需要用到的有2个参数，
splice(参数1，参数2)
参数1：从第几位开始
参数2：删除几个元素
如data:[1,2,3,4,5,6,7,8]，那么data.splice(0,3)就是从第0位开始，删除3个元素，即删除的元素为[1,2,3]，剩余元素为data:[4,5,6,7,8]，此方法会改变原数组
splice方法详细讲解
这个原理要和分页原理结合关联起来，如果一页3条数据，第一页就是从0位开始，删除的3个元素，即splice(0,3)，第二页就是从第3位开始，删除的3个元素，即splice（3,3）
因此用splice分页的关键语句就是：
let data=JSON.parse(JSON.stringify(this.allData))
this.tableData = data.splice(
(this.page - 1) * this.size,
this.size
);
this.total=this.allData.length
注意:splice会改变原数组，因为它使用一次，相当于原数组就被删除了一些元素，必须使用深拷贝先拷贝一份allData，然后再取被删除的元素赋值给tableData 。
其余代码不变，只是略微改变处理完整数据的方法
比如：
data=[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19]
由于深拷贝的原因，data可以等于完整的allData，
总条目数total=20，
若设size=3（每页3条）
两种方法的总结
最后完整代码如下：
cobol
*
<template
>
*
<div
>
*
<el-table :
data
=
"tableData" border
>
*
<el-table-column label
=
"序号"
type
=
"index" width
=
"50"
>
*
<
/el-table-column
>
*
<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
=
"sizeChange" @current-change
=
"currentChange"
*
:current-page
=
"page" :page-size
=
"size" :page-sizes
=
"pageSizes"
*
layout
=
"total, sizes, prev, pager, next, jumper" :total
=
"total"
>
*
<
/el-pagination
>
*
<
/div
>
*
<
/template
>
*
<script
>
*
export
default {
*
dat
a() {
*
return {
*
page:
1,
/
/第几页
*
size:
3,
/
/一页多少条
*
total:
0,
/
/总条目数
*
pageSizes: [
3,
5,
10,
20,
50,
100,
200,
300,
400,
500,
1000],
/
/可选择的一页多少条
*
tableData: [],
/
/表格绑定的数据
*
allData: [
*
{
*
date:
"2016-05-02",
*
name:
"王小虎1",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎2",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎3",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎4",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎5",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎6",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎7",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎8",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎9",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎10",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎11",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎12",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎13",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎14",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎15",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎16",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎17",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎18",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎19",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎20",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎21",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎22",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎23",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎24",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎25",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎26",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎27",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎28",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎29",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎30",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎31",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎32",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎33",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎34",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎35",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎36",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎37",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎38",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎39",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎40",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎41",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎42",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎43",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎44",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎45",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎46",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎47",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎48",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
{
*
date:
"2016-05-02",
*
name:
"王小虎49",
*
address:
"上海市普陀区金沙江路 1518 弄",
*
},
*
{
*
date:
"2016-05-04",
*
name:
"王小虎50",
*
address:
"上海市普陀区金沙江路 1517 弄",
*
},
*
{
*
date:
"2016-05-01",
*
name:
"王小虎51",
*
address:
"上海市普陀区金沙江路 1519 弄",
*
},
*
{
*
date:
"2016-05-03",
*
name:
"王小虎52",
*
address:
"上海市普陀区金沙江路 1516 弄",
*
},
*
],
*
};
*
},
*
methods: {
*
/
/获取表格数据，自行分页(slice)
*
getTabelDat
a() {
*
/
/allData为全部数据
*
this.tableData
= this.allData.slice(
*
(this.
page
-
1)
* this.
size,
*
this.
page
* this.
size
*
);
*
this.total
=this.allData.
length
*
},
*
*
*
/
/获取表格数据，自行分页（splice）
*
getTabelData
2() {
*
let
data
=JSON.parse(JSON.stringify(this.allData))
*
this.tableData
=
data.splice(
*
(this.
page
-
1)
* this.
size,
*
this.
size
*
);
*
this.total
=this.allData.
length
*
},
*
/
/
page改变时的回调函数，参数为当前页码
*
currentChange(val) {
*
console.log(
"翻页，当前为第几页", val);
*
this.
page
= val;
*
this.getTabelData
2();
*
},
*
/
/
size改变时回调的函数，参数为当前的
size
*
sizeChange(val) {
*
console.log(
"改变每页多少条，当前一页多少条数据", val);
*
this.
size
= val;
*
this.
page
=
1;
*
this.getTabelData
2();
*
},
*
},
*
created() {
*
this.getTabelData
2();
*
},
*
};
*
<
/script
>
