如何在RxJS中根据第一个响应发出多个Ajax请求

import { forkJoin, of } from 'rxjs';
import { ajax } from 'rxjs/ajax';

// 创建多个Ajax请求的Observable
const request1$ = ajax.getJSON('https://api.example.com/data1');
const request2$ = ajax.getJSON('https://api.example.com/data2');
const request3$ = ajax.getJSON('https://api.example.com/data3');

// 使用forkJoin操作符根据第一个响应发出多个Ajax请求
forkJoin([request1$, request2$, request3$]).subscribe(([response1, response2, response3]) => {
  // 处理响应数据
  console.log('Response 1:', response1);
  console.log('Response 2:', response2);
  console.log('Response 3:', response3);
}, error => {
  // 处理错误
  console.error('Error:', error);
});