Vue前端实现输入框过滤可选项的过滤效果

<el-form-item label&＃61;"开户支行:" prop&＃61;"branchName"><el-autocompletev-model&＃61;"form.branchName"popper-class&＃61;"my-autocomplete":fetch-suggestions&＃61;"queryBranchSearch"value-key&＃61;"branchName"placeholder&＃61;"请输入内容"style&＃61;"width: 100%;"clearable:disabled&＃61;"reviewFlag"&＃64;select&＃61;"handleBranchSelect"><template slot-scope&＃61;"{ item }"><div class&＃61;"name" :title&＃61;"item.branchName">{{ item.branchName }}</div></template></el-autocomplete></el-form-item>queryBranchSearch(queryString, cb) {var results &＃61; queryString ? this.bankBranchList.filter((provinceCity) &＃61;> provinceCity.branchName.toLowerCase().match(queryString.toLowerCase()) !&＃61;&＃61; null) : this.bankBranchList;// 调用 callback 返回建议列表的数据clearTimeout(this.timeout);this.timeout &＃61; setTimeout(() &＃61;> {cb(results);}, 600);},handleBranchSelect(item) {this.form.branchNo &＃61; item.branchId || &＃39;&＃39;;},