如何在flutter http中使用带有变量的get方法？

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

void fetchData(String id) async {
  String url = 'https://api.example.com/data/$id'; // 使用字符串插值构建URL
  var response = await http.get(Uri.parse(url));
  
  if (response.statusCode == 200) {
    // 处理成功响应
    print(response.body);
  } else {
    // 处理错误响应
    print('请求失败: ${response.statusCode}');
  }
}