这三个类是什么关系(uml)

class CWorker
{
public:
void Do();
};

class CWorkerMgr
{
CWorker m_oWorker[10];
public:
CWorker* GetWorker(int iId)
{
return &m_oWorker[iId];
}
};

class CWorkProxy
{
CWorkerMgr m_oWorkerMgr;
public:
void Do(int iId)
{
CWorker* pWorker = m_oWorkerMgr.GetWorker(iId);
pWorker->Do();
}
};

[解决办法]
http://www.iteye.com/topic/632059 看看吧，很简单的！