Message* Message::m_pInstance = ;//类外初始

Message::Message()

{

}

Message::~Message()

{

    if (m_pInstance != )

    {

        delete InstanceServer::m_pInstance;

        m_pInstance = ;

    }

}

Message*Message::getInstance()

{

    if (m_pInstance == )

    {

        m_pInstance = new Message();

    }

    return m_pInstance;

}

void Message::deleteInstance()

{

    if (m_pInstance != nullptr)

    {

        delete m_pInstance;

        m_pInstance = nullptr;

    }

}