Return 字典<String,String> + 来自任务的 CookieContainer cookie

Question

我有一些代码可以运行 return 字典的任务...但有时我需要它来 return 字典和带有 cookie 的 cookiecontainer ...这是代码

        static public async Task<Dictionary<String,String>> login(string server, string id, string pw)
    {


        CookieContainer cookies = new CookieContainer();
        HttpWebRequest newRequest = GetNewRequest(server, cookies);
        Dictionary<string, string> dictionary2 = new Dictionary<string, string>();
        dictionary2.Add("name", id);
        dictionary2.Add("password", pw);
        dictionary2.Add("uni_url", server);
        Dictionary<string, string> parameters = dictionary2;
        HttpWebResponse response = await MakeRequest(newRequest, cookies, "login", server, parameters);
        using (StreamReader reader = new StreamReader(response.GetResponseStream()))
        {
            if (!reader.EndOfStream)
            {
                Dictionary<String, String> answer = new Dictionary<string, string>();
                answer.Add("HTML", reader.ReadToEnd());
                return answer;// here i need it to return CookieContainer .
            }
        }
        Dictionary<String, String> answerFailed = new Dictionary<string, string>();
        answerFailed.Add("LoginFailed", "LoginFailed! No Internet Connection!");
        return answerFailed;
    }

我的问题：我如何 return 同一方法中的两个不同的东西？

Answer 1

如果您可以更改方法，您可以使用 Tuple<T1,T2> 到 return 来自任务的两个值：

 static public async Task<Tuple<Dictionary<String,String>,CookieContainer>> login(string server, string id, string pw)
    {
     CookieContainer cookies = new CookieContainer();
      Dictionary<string, string> dictionary2 = new Dictionary<string, string>();
// create result tuple
     var result = Touple.create(dictionary2,cookies);
     return result;
    }

Answer 2

重载功能帮不了你，因为只有参数应该不同。

在这些情况下，我通常会创建一个新的 class，其中包含您需要的所有属性作为输出，return 来自任务的这些 classe 的实例。开销很小，是未来扩展的好模式。

Return 字典<String,String> + 来自任务的 CookieContainer cookie

Return dictionary<String,String> + CookieContainer cookies from task

c#

cookies

dictionary

httpwebrequest

async-await