iQQ.Net.WebQQCore.Im.Http.QQHttpRequest.AddHeader C# (CSharp) Method

        public void AddHeader(string key, string value)
        {
            HeaderMap[key] = value;
        }

 public QQHttpRequest CreateHttpRequest(string method, string url)
 {
     QQHttpRequest req = new QQHttpRequest(url, method);
     req.AddHeader("User-Agent", _userAgent ?? QQConstants.USER_AGENT);
     req.AddHeader("Referer", QQConstants.REFFER);
     return req;
 }