求解，如題目描述,想給一個(gè)組件傳遞數(shù)據(jù),但這個(gè)組件在<route-outlet></route-outlet>的位置顯示 并不能直接在routeroutlet標(biāo)簽上添加[XX] = "XX"，看文檔好像可以通過(guò) @conponent注解的host字段綁定class和attr， 但當(dāng)我綁定[輸入值]的時(shí)候就會(huì)報(bào)錯(cuò),@Component({  selector: 'app-onlinecourse',  templateUrl: './onlinecourse.component.html',  host:{    class:"test",    '[test]':"test"  }......  @Input()  test;..... ngOnChanges() {      console.log(this.test);  }//undifind報(bào)錯(cuò)信息:Can't bind to 'test' since it isn't a known property of 'app-onlinecourse'.請(qǐng)輸入代碼謝謝