Qt中通过QAxObject实现Excel读写，Excel进程无法退出

Question

出入QT，当下想用QAxObject实现Excel读写，通过网上资料学习，目前已经实现所有功能相关代码开发，存在open后Excel进程退不掉的问题：先上代码
QString strFileName = tr("D:\\FilePath\\1402.xlsx");
QAxObject* m_pObjExcel;
QAxObject *m_pObjWorkbooks;
QAxObject *m_pObjWork;
QAxObject *m_pWorksheets;

m_pObjExcel = new QAxObject(tr("Excel.Application"), this);//建立excel操作对象
m_pObjExcel->setProperty("Visible", false);
m_pObjExcel->setProperty("DisplayAlerts", false);
m_pObjWorkbooks = m_pObjExcel->querySubObject("WorkBooks");

QFile xlsFile(strFileName);
if (xlsFile.exists())
{
    m_pObjWorkbooks->dynamicCall("Open(const QString&)", strFileName);
}
else
{
    m_pObjWorkbooks->dynamicCall("Add");
}
m_pObjWork = m_pObjExcel->querySubObject("ActiveWorkBook");
m_pWorksheets = m_pObjWork->querySubObject("WorkSheets");

if (m_pWorksheets)
{
    m_pWorksheets->dynamicCall("Close(Boolean)", false);
    delete m_pWorksheets;
    m_pWorksheets = NULL;
}
if (m_pObjWork)
{
    m_pObjWork->dynamicCall("Close(Boolean)", false);
    delete m_pObjWork;
    m_pObjWork = NULL;
}

if (m_pObjExcel != NULL)
{
    m_pObjWorkbooks->dynamicCall("Close(Boolean)", false); 
    delete m_pObjWorkbooks;
    m_pObjWorkbooks = NULL;

    m_pObjExcel->dynamicCall("Quit(void)");
    delete m_pObjExcel;
    m_pObjExcel = NULL;
}
每次只要打开文件存在调用到m_pObjWorkbooks->dynamicCall("Open(const QString&)", strFileName);任务管理器中的Excel.exe就无法退出，只要该行代码不被调用，就不会有问题（也就是说读无法退出写能正常退出）。
 上述delete 的调用时因为网上学习到说querySubObject返回值要自己delete，所以都delete了一下。
 分不多，希望大神能提供帮助，谢谢大神们。

Answer 1

请检查下你的电脑是否安装了一个叫“福昕阅读器”的垃圾软件！