<Select @on-change="setOption" 
:label-in-value="true" 
style="width: 150px" 
placeholder="" 
v-model="model12" 
filterable>
    <Option v-for="item in cityList" :value="item.value">{{ item.label }}</Option>
</Select>cityList: [
        {
            id:"11",
            value: "beijing",
            label: ""
        },
        {
            id:"31",
            value: "shanghai",
            label: ""
        },
        {
            id:"13",
            value: "hebei",
            label: ""
        },
    ],setOption(v){
    console.log(v);
}, is such a simple code, why only console.log label and value. 
  
how can I get ID?
