C# 自訂list

void aa()
{
    List<QNodList> qNodList = new List<QNodList>();
    QNodList qn = new QNodList();
    qn.key = k;
    qn.value = v;
    qNodList.Add(qn);
}

//自訂list格式
public class QNodList
{
     public string key = "";
     public string value = "";
}