import { LightningElement,api } from 'lwc'; export default class BoxorpieceType extends LightningElement { value = '盒'; @api customValueA; get options() { return [ { label: '盒', value: '盒' }, { label: '个', value: '个' } ]; } connectedCallback(){ console.log('enter BoxorpieceType') } handleChange(event) { this.value = event.detail.value; } }