新增一行，滾動到最左側，滾動到當前行，定位到當前行

<vxe-table
          ref="table"
          :key="tableKey"
>
addRow() {
// 滾到最左側
      this.tableKey = +new Date()
const list = {
        lngemployeeid: '',
}
setTimeout(() => {
          // 定位到新增行
          this.$refs.table.setActiveRow(list)
          const lastRow = this.detailDialog.tableData[this.detailDialog.tableData.length - 1]
          this.$refs.table.setCurrentRow(lastRow)
          this.$refs.table.scrollToRow(lastRow)
        })