在角度中使用ng-选定预先选择两个下拉列表

npm install @ng-select/ng-select

import { NgSelectModule } from '@ng-select/ng-select';

@NgModule({
  imports: [
    NgSelectModule
  ],
  // 其他组件配置
})
export class YourComponentModule { }

<ng-select [(ngModel)]="selectedItem1">
  <ng-option value="option1">Option 1</ng-option>
  <ng-option value="option2">Option 2</ng-option>
  <ng-option value="option3">Option 3</ng-option>
</ng-select>

<ng-select [(ngModel)]="selectedItem2">
  <ng-option value="option4">Option 4</ng-option>
  <ng-option value="option5">Option 5</ng-option>
  <ng-option value="option6">Option 6</ng-option>
</ng-select>

selectedItem1: string;
selectedItem2: string;

constructor() {
  this.selectedItem1 = 'option1'; // 默认选择Option 1
  this.selectedItem2 = 'option4'; // 默认选择Option 4
}