Angular 角度6或7：如何在'@角度/通用/http'；

我已经将angular 4代码迁移到angular 6，我想知道如何在angular 6或angular 7中导入下面的代码

import { RequestOptions, ResponseContentType } from '@angular/common/http';

走这边

import { HttpClient, HttpHeaders } from '@angular/common/http';

 let headers = new HttpHeaders({
    'Content-Type': 'application/json'
 });
 let options = {
    headers: headers
 }

 this.http.post(URL, param, options)
    .subscribe(data => {
         console.log(data);
 });



 // For pass blob in API 

 return this.http.get(url, { headers: new HttpHeaders({
   'Authorization': '{data}',
   'Content-Type': 'application/json',
 }), responseType: 'blob'}).pipe (
 tap (
     // Log the result or error
     data => console.log('You received data'),
     error => console.log(error)
  )
);

---

我想使用ResponseContentType。Blob@AmolBLande我已经更新了我的答案，请检查一下。@Amollande您能更新您在这个问题上的状态吗？@Amollande欢迎您。很高兴帮你。这里没有打字吗？从一个类型化对象到一个参数定义类型中的无名对象。从角度看并不可怕。