qt text文字重叠怎么办？

Question

我的text不知道为啥刷新后字体出现重叠。代码如下

.h代码

 class VideoDisplay : public QDialog
{
    Q_OBJECT

public:
    VideoDisplay(QWidget *parent = 0);
    ~VideoDisplay();

private Q_SLOTS:
    void tim_slot();

private:
    Ui::Dialog ui;
    //Ui::Esc_Dialog esc_ui;
    Esc_Dialog *esc_dialog ;
    Menu_Dialog *menu_dialog ;
    QTimer *timer1;
    QLabel *timeLabel;
};

cpp代码

 VideoDisplay::VideoDisplay(QWidget *parent)
    : QDialog(parent)
    , bufrgb(NULL)
{
   QPalette pe;
   pe.setColor(QPalette::WindowText,Qt::white);
   timeLabel = new QLabel(this);
   timeLabel->setObjectName(QString::fromUtf8("timeLabel"));
   timeLabel->setGeometry(QRect(10, 20, 140, 17));
   timeLabel->setPalette(pe);

   timer1=new QTimer(this);//用于时间显示
   timer1->start(1000);
   connect(timer1, SIGNAL(timeout()), this, SLOT(tim_slot()));
}

VideoDisplay::~VideoDisplay()
{
}
/**
  *时间显示
  */
void VideoDisplay::tim_slot()
{
    timeLabel->clear();
   timeLabel->setText((new QDateTime)->currentDateTime().toString("yyyy-MM-dd hh:mm:ss"));
}

请问下为啥每次刷新text都会重叠，背景颜色改为透明为啥还是黑颜色？哪位大神给我指点下，跪谢！

Answer 1

https://blog.csdn.net/dingxl555/article/details/48825463