element table表格点击单元格实现编辑

<el-table
        :data="dataDetail.judgmentLetterDets"
        :row-class-name="tableRowClassName"
        border
        style="width: 100%"
        max-height="500px"
        @cell-click="tabClick">
        <el-table-column
          prop="reason"
          label="原因说明"
          align="center">
          <template slot-scope="scope">
            <span v-if="scope.row.index === tabClickIndex && tabClickLabel === '原因说明'">
              <el-input v-model="scope.row.reason" maxlength="300" placeholder="请输入原因" size="mini" @blur="inputBlur"/>
            </span>
            <span v-else>{{ scope.row.reason }}</span>
          </template>
        </el-table-column>
        <el-table-column
          prop="judgmentAmount"
          label="判责金额(元)"
          width="120px"
          align="center">
          <template slot-scope="scope">
            <span v-if="scope.row.index === tabClickIndex && tabClickLabel === '判责金额(元)'">
              <el-input
                v-model="scope.row.judgmentAmount"
                :blur="inputBlur"
                placeholder="请输入判责金额"
                size="mini"
                @blur="inputBlur"/>
            </span>
            <span v-else>{{ scope.row.judgmentAmount | fmoney }}</span>
          </template>
        </el-table-column>
        <el-table-column prop="remark" label="备注" align="center" width="180">
          <template slot-scope="scope">
            <span v-if="scope.row.index === tabClickIndex && tabClickLabel === '备注'">
              <el-input v-model="scope.row.remark" maxlength="300" placeholder="请输入备注" size="mini" @blur="inputBlur"/>
            </span>
            <span v-else>{{ scope.row.remark }}</span>
          </template>
        </el-table-column>
      </el-table>
// js
data() {
    return {
        tabClickIndex: null, // 点击的单元格
        tabClickLabel: '', // 当前点击的列名
    }
},
methods: {
   tableRowClassName({ row, rowIndex }) {
      // 把每一行的索引放进row
      row.index = rowIndex
   },
   // 添加明细原因 row 当前行 column 当前列
    tabClick(row, column, cell, event) {
      switch (column.label) {
        case '原因说明':
          this.tabClickIndex = row.index
          this.tabClickLabel = column.label
          break
        case '判责金额(元)':
          this.tabClickIndex = row.index
          this.tabClickLabel = column.label
          break
        case '备注':
          this.tabClickIndex = row.index
          this.tabClickLabel = column.label
          break
        default: return
      }
      console.log('添加明细原因', this.tabClickIndex, row, column, cell, event)
    },
    // 失去焦点初始化
    inputBlur(row, event, column) {
      this.tabClickIndex = null
      this.tabClickLabel = ''
    },
}