qt activex操作excel，该怎么解决
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QAxObject *excel = new QAxObject( "Excel.Application", 0 );
QAxObject * workbooks = excel->querySubObject("WorkBooks");
workbooks->dynamicCall("Open (const QString&)", fileName);
QAxObject * workbook = excel->querySubObject("ActiveWorkBook");
QAxObject * worksheets = workbook->querySubObject("WorkSheets");
执行到最后一句时出现
QAxObject * workbooks = excel->querySubObject("WorkBooks");
workbooks->dynamicCall("Open (const QString&)", fileName);
QAxObject * workbook = excel->querySubObject("ActiveWorkBook");
QAxObject * worksheets = workbook->querySubObject("WorkSheets");
执行到最后一句时出现
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