效果图：elementui全选和全不选


代码：

<template>
  <el-table
    ref="multipleTable"
    :data="tableData"
    tooltip-effect="dark"
    style="width: 100%"
    @selection-change="handleSelectionChange">
    <el-table-column
      type="selection"
      width="55">
    </el-table-column>
    <el-table-column
      label="日期"
      width="120">
      <template slot-scope="scope">{
    {
     scope.row.date }}</template>
    </el-table-column>
    <el-table-column
      prop="name"
      label="姓名"
      width="120">
    </el-table-column>
    <el-table-column
      prop="address"
      label="地址"
      show-overflow-tooltip>
    </el-table-column>
  </el-table>
  <div style="margin-top: 20px">
    <el-button @click="toggleSelection([tableData[1], tableData[2]])">切换第二、第三行的选中状态</el-button>
    <el-button @click="toggleSelection()">取消选择</el-button>
  </div>
</template>

<script>
  export default {
    
    data() {
    
      return {
    
        tableData: [{
    
          date: '2016-05-03',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
    
          date: '2016-05-02',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
    
          date: '2016-05-04',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
    
          date: '2016-05-01',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
    
          date: '2016-05-08',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
    
          date: '2016-05-06',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
    
          date: '2016-05-07',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }],
        multipleSelection: []
      }
    },

    methods: {
    
      toggleSelection(rows) {
    
        if (rows) {
    
          rows.forEach(row => {
    
            this.$refs.multipleTable.toggleRowSelection(row);
          });
        } else {
    
          this.$refs.multipleTable.clearSelection();
        }
      },
      handleSelectionChange(val) {
    
        this.multipleSelection = val;
      }
    }
  }
</script>

主要代码1：

主要代码2：

主要代码3：