/// <summary>
/// 修改，由于刷新存在连接ID变化
/// </summary>
/// <param name="connctionId"></param>
/// <param name="client"></param>
public void UpdateClient(string connctionId, RealOnlineClient client)
{
onlines[connctionId] = client;
}
/// <summary>
/// 添加在线用户
/// </summary>
/// <param name="connctionId"></param>
/// <param name="client"></param>
public void AddClient(string connctionId, RealOnlineClient client)
{
onlines.Add(connctionId, client);
}