<el-table
 class="table"
 :data="tableData"
 border
 
 @selection-change="handleSelectionChange"
 ref="asTable"
>
 <el-table-column
 width="50"
 type="selection"
 fixed="left"
 >
 </el-table-column>
 <el-table-column
 prop="id"
 label="ID"
 >
 </el-table-column>
 <el-table-column
 prop="name"
 label="名字"
 >
 </el-table-column>

 <el-table-column
 label="操作"
 width="100"
 >
 <template slot-scope="scope">
  <el-button type="primary" plain size="small" @click="handleEdit(scope.row)" >編輯</el-button>
 </template>
 </el-table-column>
</el-table>
<el-pagination
 background
 @current-change="handleCurrentChange"
 :current-page.sync="pagination.currentPage"
 :page-size="pagination.size"
 layout="total, prev, pager, next, jumper"
 :total="pagination.total"
 slot="pagination"
>
</el-pagination>

data () {
 return {
 tableData: [],
 multipleSelection: [],
 pagination: {
  currentPage: 1,
  size: 10,
  total: 1000
 }
 }
},
beforeMount () {
 this.fetchData()
},
methods: {
 fetchData () {
 this.tableData = []
 let start = (this.pagination.currentPage - 1) * this.pagination.size
 let end = this.pagination.currentPage * this.pagination.size
 setTimeout(_ => {
  for (let i = start; i < end; i++) {
  this.tableData.push({
   id: i,
   name: `王${i}蘭`
  })
  }
 }
 },
 handleCurrentChange () {
 this.fetchData()
 },
 handleSelectionChange (val) {
 this.multipleSelection = val
 },
}

<div class="result">
 已選：{{ allMultipleSelection }}
</div>
allMultipleSelection: [],

handleSelectionChange (val) {
 this.multipleSelection = val
 // @tip 實(shí)現(xiàn)分頁(yè)復(fù)選
 console.log(val, 'selection')
 setTimeout(_ => {
 this.resolveAllSelection()
 }, 50)
},
resolveAllSelection () {
 let currentPageData = this.tableData.map(item => item[this.uniqueKey]) // 當(dāng)前頁(yè)所有數(shù)據(jù)
 let currentPageSelected = this.multipleSelection.map(item => item[this.uniqueKey]) // 當(dāng)前頁(yè)已選數(shù)據(jù)
 let currentPageNotSelected = currentPageData.filter(item => !currentPageSelected.includes(item)) // 當(dāng)前頁(yè)未選數(shù)據(jù)
 // 將當(dāng)前頁(yè)已選數(shù)據(jù)放入所有已選項(xiàng)
 currentPageSelected.forEach(item => {
 if (!this.allMultipleSelection.includes(item)) {
  this.allMultipleSelection.push(item)
 }
 })
 // 將所有已選項(xiàng)數(shù)據(jù)中當(dāng)前頁(yè)沒(méi)選擇的項(xiàng)移除
 currentPageNotSelected.forEach(item => {
 let idx = this.allMultipleSelection.indexOf(item)
 if (idx > -1) {
  this.allMultipleSelection.splice(idx, 1)
 }
 })
 console.log(this.allMultipleSelection, 'all')
},

fetchData () {
 // ...
 setTimeout(_ => {
 // ...
 // @tip 實(shí)現(xiàn)分頁(yè)復(fù)選
 setTimeout(_ => {
  this.setSelectedRow()
 }, 50)
 }, 200)
},
setSelectedRow () {
 // 設(shè)置當(dāng)前頁(yè)已選項(xiàng)
 this.tableData.forEach(item => {
 if (this.allMultipleSelection.includes(item[this.uniqueKey])) {
  this.$refs.asTable.toggleRowSelection(item, true)
  console.log(item[this.uniqueKey], 'set')
 }
 })
},

git clone git@github.com:careteenL/lan-vue.git
npm install
npm run serve