如何在angular6中一键获取多个下拉菜单的选定值

<select [(ngModel)]="selectedOption1">
  <option value="option1">Option 1</option>
  <option value="option2">Option 2</option>
  <option value="option3">Option 3</option>
</select>

<select [(ngModel)]="selectedOption2">
  <option value="optionA">Option A</option>
  <option value="optionB">Option B</option>
  <option value="optionC">Option C</option>
</select>

selectedOption1: string;
selectedOption2: string;

onClick() {
  console.log("Selected Option 1: " + this.selectedOption1);
  console.log("Selected Option 2: " + this.selectedOption2);
}