QT打开一个路径下的所有的.xls文件，判断文件里面是否含有字符串“shijain”，并将所在的位置信息显示在textbrowe

可以使用Qt的QDir类来遍历指定路径下的所有.xls文件，然后使用QAxObject类打开Excel文件并查找字符串。以下是代码示例：

QDir dir("your/path");
QStringList filters;
filters << "*.xls";
QFileInfoList fileList = dir.entryInfoList(filters);

foreach (QFileInfo file, fileList) {
    QAxObject *excel = new QAxObject("Excel.Application");
    QAxObject *workbooks = excel->querySubObject("Workbooks");
    QAxObject *workbook = workbooks->querySubObject("Open(const QString&)", file.absoluteFilePath());
    QAxObject *worksheets = workbook->querySubObject("Worksheets");

    int sheetCount = worksheets->property("Count").toInt();
    for (int i = 1; i <= sheetCount; i++) {
        QAxObject *sheet = worksheets->querySubObject("Item(int)", i);
        QAxObject *usedRange = sheet->querySubObject("UsedRange");
        QAxObject *find = usedRange->querySubObject("Find(QString)", "shijian");
        if (find) {
            int row = find->property("Row").toInt();
            int column = find->property("Column").toInt();
            QString info = QString("%1\t%2\t%3\n").arg(file.absoluteFilePath()).arg(i).arg(QString("%1,%2").arg(row).arg(column));
            ui->textBrowser->append(info);
            find->dynamicCall("Clear()");
            delete find;
        }
        delete usedRange;
        delete sheet;
    }

    workbook->dynamicCall("Close()");
    delete workbook;
    delete worksheets;
    delete workbooks;
    excel->dynamicCall("Quit()");
    delete excel;
}

该代码会打开指定路径下的所有.xls文件，遍历文件中的所有工作表并查找是否包含字符串“shijian”，如果找到了，则会将文件路径、工作表序号以及字符串位置信息显示在textBrowser中。注意：需要在.pro文件中添加`LIBS += -lOleAut32`才能使用QAxObject类。