c# - 如何找出字典对象中键的值？

Question

我有这个 API 调用:

HttpResponse<string> response = 
    Unirest.get("https://wordsapiv1.p.mashape.com/words/" + word.Name)
    .header("X-Mashape-Key", "xxxx")
    .header("Accept", "application/json")
    .asJson<string>();

这是 HttpResponse 的类:

public class HttpResponse<T>
{
    public HttpResponse(HttpResponseMessage response);

    public T Body { get; set; }
    public int Code { get; }
    public Dictionary<string, string> Headers { get; }
    public Stream Raw { get; }
}

获取正文 (response.Body) 或代码没有问题，但我想做的是获取此 header :

[7] = {[X-RateLimit-requests-Remaining, 2498]}

谁能告诉我如何检查返回的响应并找出 X-RateLimit-requests-Remaining 的值？

Answer 1

字典有一个叫做 indexer 的东西.您的索引器的数据类型是您的 Key 的数据类型( Dictionary<Key,Value> )。

索引器类似于属性 getter 和 setter，并且是这样实现的:

public TValue this[TKey index]
{
    // this will return when being called e.g. 'var x = dictionary[key];' 
    get { return whatever; }

    // and here 'value' is whatever you pass to the setter e.g. 'dictionary[kex] = x;'
    set { whatever = value; }
}

在你的情况下会是:

// "Key" is just an example, use "X-RateLimit-requests-Remaining" instead ;)
response.Headers["Key"];