我想创造一个应用程序,将会告诉我的天气信息,从webscraping.
我做了这个代码我不知道为什么这是给我"实例的'未来'",而不是我的价值:
import 'package:html/dom.dart' as dom;
import 'package:html/parser.dart' as parser;
import 'package:http/http.dart' as http;
class Scraper {
List temp = [];
Future getData(city) async {
final response = await http
.get(Uri.parse('https://www.google.com/search?q=temperature+$city'));
dom.Document document = parser.parse(response.body);
var idTemp = document.getElementById('wob_tm');
return idTemp;
}
}
void main() {
var tempe = Scraper().getData('São Paulo');
print(tempe);
}
为什么没有我的代码的工作?