如何在angular 5中使用map从api中挖掘数据

npm install rxjs

import { map } from 'rxjs/operators';

import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';

getData(): Observable<any> {
  return this.http.get('API_URL').pipe(
    map(response => response.data)
  );
}

import { Component, OnInit } from '@angular/core';
import { DataService } from 'path-to-your-data-service';

@Component({
  selector: 'app-your-component',
  templateUrl: './your-component.component.html',
  styleUrls: ['./your-component.component.css']
})
export class YourComponent implements OnInit {
  data: any;

  constructor(private dataService: DataService) { }

  ngOnInit() {
    this.dataService.getData().subscribe(data => {
      this.data = data;
      // 在这里可以对提取的数据进行进一步处理或展示
    });
  }
}