综合域11_回收池处理不当导致话单数据不正确.doc

7 试题
#include "stdafx.h"
#include "list"
using namespace std;
class TObject
{
public:
    TObject(){m_id = 0;};
    ~TObject(){};
void setId(int id)
{     
  m_id = id; 
 }
int getId() 
{   
    return m_id;
    }
private:
    int m_id;
};
class TObjectPool
{
public:   
    TObjectPool(unsigned int uLength)
    {
        for(int i=0;i        {
            TObject* pObject = new TObject();
            m_idllist.push_front(pObject);
        }       
    }
    virtual ~TObjectPool()
    {
        TObject *pObject = this->getObject();
        while (NULL != pObject)
        {
            delete pObject;
            pObject = this->getObject();
        }
    }
    TObject* getObject()
    {
        list::iterator iter = m_idllist.begin();
        if(m_idllist.end() != iter)
        {
            TObject *pObject = *iter;
            m_idllist.erase(iter);
            return pObject;
        }
        else
        {
            return NULL;
        }
    }
    void releaseObject(TObject* pObject)
    {
        m_idllist.push_back(pObject);
    }
private:
    list m_idllist;
};
int main(int argc, char* argv[])
{
    TObjectPool* pTPool = new TObjectPool(10);
    TObject* pOject = pTPool->getObject();
    pOject->setId(10);
    pTPool->releaseObject(pOject);
    while (true)
    {
        pOject = pTPool->getObject();
        if(NULL == pOject)
        {
            break;
        }
        printf("%d",pOject->getId());
        delete pOject;
    } 
    return 0;
}
在windows执行上面程序，　下面正确的说法是（Ａ）
A: 屏幕上输出　00000000010
B: 屏幕上输出　10000000010
C: 屏幕上输出异常
D: 以上说法都不正确