你写的代码报如下错误：[Vue warn]: Property or method "scope" is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.

非常抱歉，我的回答中的代码有误。`scope` 只在 `template` 中有效，无法在 `v-if` 中使用。正确的写法应该是使用 `v-if` 来判断当前行的 `isDatepath` 属性是否为 `yes`。具体代码如下：

<el-table-column label="是否补加日期" align="center" prop="isDatepath">
  <template slot-scope="scope">
    <dict-tag :options="dict.type.jsyh_yes_no" :value="scope.row.isDatepath"/>
  </template>
</el-table-column>
<el-table-column v-if="scope.row.isDatepath === 'yes'" label="补加日期" align="center" prop="datepath" />

非常抱歉给您带来的困扰，感谢您的指正。