在Flutter中上传带有http.post的图片和注册表？

dependencies:
  http: ^0.13.4
  flutter_image_picker: ^0.8.4+4

import 'package:http/http.dart' as http;
import 'package:flutter_image_picker/flutter_image_picker.dart';

Future<void> uploadImage() async {
  var image = await ImagePicker.pickImage(source: ImageSource.gallery);
  var request = http.MultipartRequest('POST', Uri.parse('YOUR_UPLOAD_URL'));

  var multipartFile = await http.MultipartFile.fromPath('image', image.path);
  request.files.add(multipartFile);

  var response = await request.send();
  if (response.statusCode == 200) {
    print('Image uploaded successfully');
  } else {
    print('Image upload failed');
  }
}

Future<void> registerUser(String username, String password) async {
  var url = 'YOUR_REGISTER_URL';
  var response = await http.post(url, body: {
    'username': username,
    'password': password,
  });

  if (response.statusCode == 200) {
    print('User registered successfully');
  } else {
    print('User registration failed');
  }
}