帮我写一个使用qt4读写excel表格的函数

当使用Qt4进行读写Excel表格时，您可以使用QAxObject类来访问COM接口。以下是一个使用Qt4读取Excel表格的函数示例：

#include <QAxObject>

void readExcelFile(QString filename)
{
    QAxObject excel("Excel.Application");
    QAxObject *workbooks = excel.querySubObject("Workbooks");
    QAxObject *workbook = workbooks->querySubObject("Open(const QString&)", filename);
    QAxObject *worksheet = workbook->querySubObject("Worksheets(int)", 1);

    QAxObject *usedrange = worksheet->querySubObject("UsedRange");
    QAxObject *rows = usedrange->querySubObject("Rows");

    int row_count = rows->property("Count").toInt();
    int column_count = usedrange->querySubObject("Columns")->property("Count").toInt();

    for (int i = 1; i <= row_count; i++) {
        for (int j = 1; j <= column_count; j++) {
            QAxObject *cell = usedrange->querySubObject("Item(int,int)", i, j);
            QString cell_value = cell->property("Value").toString();
            qDebug() << cell_value << "\t";
            delete cell;
        }
        qDebug() << endl;
    }

    delete rows;
    delete usedrange;
    delete worksheet;
    workbook->dynamicCall("Close()");
    delete workbook;
    delete workbooks;

    excel.dynamicCall("Quit()");
}

请注意，您需要在项目文件中添加以下模块：QtAxContainer。