element-ui中Table可編輯單元格，選中可編輯

<template>
  <el-table
    ref="editabletable"
    v-loading="loading"
    element-loading-text="加載中"
    :data="dataSource"
    current-row-key="id"
    :header-cell-style="{background:'#F5F5F5',color:'#606266'}"
    :border="true"
    @cell-dblclick="handleCellClick"
  >
    <el-table-column
      prop="cell0"
      label="單元格0"
      align="center"
    >
      <template slot-scope="scope">
        <el-input-number
          v-if="scope.row.editable === 'cell0'"
          v-model="scope.row.cell0"
          v-focus
          style="width:80%"
          :controls="false"
          @blur="handleInputReset(scope.row)"
        />
        <span v-if="scope.row.editable !== 'cell0'">
          {{ scope.row.cell0 }}
        </span>
      </template>
    </el-table-column>
    <el-table-column
      prop="cell1"
      label="攤銷比例"
      align="center"
    >
      <template slot-scope="scope">
        <el-input-number
          v-if="scope.row.editable === 'cell1'"
          v-model="scope.row.cell1"
          v-focus
          style="width:80%"
          :controls="false"
          @blur="handleInputReset(scope.row)"
        />
        <span v-if="scope.row.editable !== 'cell1'">
          {{ scope.row.cell1 }}
        </span>
      </template>
    </el-table-column>
  </el-table>
</template>
<script lang="ts">
import Vue from 'vue'
export default Vue.extend({
  data() {
    return {
      dataSource: [{
        cell1: '單元格1',
        cell0: '單元格0',
        editable: '',
        isEdit: false,
      }]
    }
  },
  directives: {
    // 注冊一個局部的自定義指令 v-focus
    focus: {
      // 指令的定義
      inserted: function (el: HTMLElement) {
        // 聚焦元素
        if (el) {
          el.querySelector('input').focus();
        }
      }
    }
  },
  methods: {
    handleCellClick (row: { [key: string]: any }, column: { [key: string]: any }): void {
      row.editable = column.property;
      row.isEdit = true;
    },
    handleInputReset (row: { [key: string]: any }): void {
      row.editable = '';
    }
  }
})
</script>