答案 0 :(得分:0)
这解决了它
<select #sceneSelection [(ngModel)]="m_sceneSeleced.id" style="height: 30px" (change)="_onSceneSelectionChanged($event.target.value)"formControlName="sceneSelection">
<option [selected]="scene.selected" [value]="scene.sceneId" *ngFor="let scene of m_sceneSelection">{{scene.label}}</option>
</select>
必须同时添加[selected]和ngModel,否则选择不起作用。