.ts

import { Component, OnInit } from '@angular/core';

@Component({
 selector: 'app-home',
 templateUrl: './home.component.html',
 styleUrls: ['./home.component.scss']
})
export class HomeComponent implements OnInit {

 public list:any[]=[
   {
     "player":'科比'
   },
   {
     "player":'詹姆斯'
   },
   {
     "player":'杜兰特'
   }
 ]

 constructor() { }

 ngOnInit(): void {
 }

}

.html

<h1>引入图片</h1>

<img src="assets/images/f2.png" alt="图片">
<hr>
<h1>循环数据 显示数据的索引</h1>
<ul>
   <li *ngFor="let item of list;let key=index">
       {{key}}--{{item.player}}
   </li>
</ul>