```html
<el-form-item label="建造年份">
<el-select multiple :disabled="isable"
:value="elem.BuildingYearList.map(p => p.year)"
@change="(value) => handlerYearChange(value, elem)"
placeholder="请选择" @change="changeYear(elem)">
<el-option v-for="elem in UnregisterbuildYear" :key="elem.title"
:label="elem.title" :value="elem.value">
</el-option>
</el-select>
</el-form-item>
```