根据正则匹配出正确数据，返回值无效？-灵析社区
LightSea{{ localSN }} export default { props: { datalist: { type: Array, default: () => [] }, titlelist: { type: Object, default: () => { } } }, data() { return { localSN: '' }; }, methods: { regeMatch1(sn) { const pattern = /^[A-Za-z0-9]+$/gi; if (sn !== '' && sn !== null) { if (pattern.test(sn)) { console.log('符合'); return sn; } else { console.log('不符合'); return ''; } } } }, mounted() { console.log(this.titlelist.sn, 11111); this.localSN = this.regeMatch1(this.titlelist.sn); } };