#include <QtWidgets>
#include <QtGui>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QTextEdit*  mytext = new QTextEdit;

    mytext->setAcceptRichText(false);
    mytext->setReadOnly(true);
    mytext->setUndoRedoEnabled(false);

    mytext->setTextColor(Qt::black);

    mytext->append("14:41:51: 开始读取数据计算数据(v:2.8.3)，请等待...");
    mytext->show();

    return a.exec();
}