Angular 7向服务器发送多个文件

import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-file-upload',
  template: `
    <input type="file" (change)="onFileChange($event)" multiple>
    <button (click)="uploadFiles()">Upload</button>
  `
})
export class FileUploadComponent {
  selectedFiles: File[];

  constructor(private http: HttpClient) {}

  onFileChange(event: any) {
    this.selectedFiles = event.target.files;
  }

  uploadFiles() {
    const formData = new FormData();
    for (let file of this.selectedFiles) {
      formData.append('files', file, file.name);
    }

    this.http.post('https://example.com/upload', formData)
      .subscribe(response => {
        console.log('Files uploaded successfully');
      }, error => {
        console.error('Error uploading files');
      });
  }
}