<a-select mode="multiple"
placeholder="选择基准峰"
:key="defaultValueArr"
:default-value="defaultValueArr"
style="width: 100%"
@change="handleChange">
<a-select-option :key="item"
v-for="item in defaultdata"
:value=item.peakName>{
{ item.value }} </a-select-option>
</a-select>
重点
除了要设置 : default-value 之外, :key 也必须要设置才能动态绑定