Angular如何映射键和值

<input type="text" [(ngModel)]="myKey">
<input type="text" [(ngModel)]="myValue">

<div *ngFor="let item of myObject | keyvalue">
  Key: {{item.key}}, Value: {{item.value}}
</div>

myMap = new Map<number, string>();

myMap.set(1, 'Apple');
myMap.set(2, 'Banana');
myMap.set(3, 'Orange');

<div *ngFor="let item of myMap">
  Key: {{item[0]}}, Value: {{item[1]}}
</div>