vue select change事件

Html :
<el-form-item label="条线" prop="stripeid" >
    <el-select v-model="selectval" filterable placeholder="请选择"  @change="onChangeStripe">
        <el-option
                v-for="item in options"
                :key="item.value"
                :label="item.label"
                :value="item.value">
        </el-option>
    </el-select>
</el-form-item>

js:

// 条线改变事件
onChangeStripe:function(e){
    this.initBindStripeTap(e);
},
//绑定标签select
initBindStripeTap(data){
    getTapByStripeid({sid:data}).then(res => {
        this.tap_options=[];
        this.tapid=[];
        for (let k in res.data) {
            this.tap_options.push({label: res.data[k].name, value: res.data[k].guid});
        }
    })
},