我想当scope.row.on==='某个值' 的时候el-switch标签里才有disabled属性，该怎么加？

    <el-table-column width="200%" label="状态" class="switchVal">
        <template slot-scope="scope">
          <el-switch
            @change="changeSwitch(scope.$index, scope.row)"
            v-model="scope.row.on"
            disabled
            active-text="启用"
            inactive-text="">
            on-color="#00A854"
            on-text="启动"
            on-value="1"
            off-color="#F04134"
            off-text="禁止"
            off-value="0"
            >
          </el-switch>
        </template>
      </el-table-column>