Popover 弹出框，里面的表格点击后关闭弹窗

<el-popover
        ref="popover4"
        placement="right"
        width="150"
        trigger="click">
        <el-table :data="gridData" @cell-click="copyClick">
          <el-table-column width="150" style="cursor: pointer;" property="date" label="请选择">
          </el-table-column>
        </el-table>
      <el-button slot="reference" type="primary" style=" 200px;margin-bottom:20px;">复制</el-button>
</el-popover>

　　

showPopper可以关闭弹框

// 点击复制单元格
    copyClick (row, column, cell, event) {
      this.$refs.popover4.showPopper = false;
    }