```
<el-form-item label="优惠券:" prop="coupon_id">
<el-select v-model="editForm.coupon_id" filterable placeholder="请选择优惠券" class="selectBox" @change="selectChange">
<div class="option">
<el-option
v-for="item in coupon"
:key="item.id"
:label="item.name"
:value="item.id">
</el-option>
</div>
</el-select>
</el-form-item>
```