如何在angular2中获取订阅数据的值

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

@Component({
  selector: 'app-example',
  template: `
    <div>{{ data }}</div>
  `,
})
export class ExampleComponent implements OnInit {
  data: any;
  subscription: Subscription;

  ngOnInit() {
    // 创建一个Observable对象
    const myObservable = new Observable(observer => {
      // 模拟异步操作，比如从服务器获取数据
      setTimeout(() => {
        observer.next('订阅数据的值');
        observer.complete();
      }, 1000);
    });

    // 订阅Observable并获取数据的值
    this.subscription = myObservable.subscribe(
      value => this.data = value,
      error => console.error(error),
      () => console.log('订阅已完成')
    );
  }

  ngOnDestroy() {
    // 取消订阅以避免内存泄漏
    this.subscription.unsubscribe();
  }
}