Angular 4-如何获取从我的组合框中选择的内容的值？

<select [(ngModel)]="selectedValue">
  <option value="option1">Option 1</option>
  <option value="option2">Option 2</option>
  <option value="option3">Option 3</option>
</select>

export class MyComponent {
  selectedValue: string;
}

<select [(ngModel)]="selectedValue" (change)="onSelectionChange()">
  <option value="option1">Option 1</option>
  <option value="option2">Option 2</option>
  <option value="option3">Option 3</option>
</select>

export class MyComponent {
  selectedValue: string;

  onSelectionChange() {
    console.log(this.selectedValue); // 打印选择的值
    // 执行其他逻辑...
  }
}