效果

代码

class drawRabbit: public QWidget {
public:
  drawRabbit(QWidget *parent = nullptr) : QWidget(parent) {}

private:
  void paintEvent(QPaintEvent *event) {
    QPainter painter(this);
    painter.setRenderHint(QPainter::Antialiasing, true);

    // 绘制兔子的耳朵
    painter.setPen(Qt::NoPen);
    painter.setBrush(QColor("#f2a272"));
    painter.drawEllipse(QRectF(50, 30, 40, 80));
    painter.drawEllipse(QRectF(140, 30, 40, 80));
    painter.setBrush(QColor("#ffb7a2"));
    painter.drawEllipse(QRectF(52, 38, 36, 66));
    painter.drawEllipse(QRectF(142, 38, 36, 66));

    // 绘制兔子的脸
    painter.setBrush(QColor("#f7c2b7"));
    painter.drawEllipse(QRectF(70, 70, 100, 130));

    // 绘制兔子的眼睛
    painter.setPen(QPen(Qt::white, 4));
    painter.setBrush(QColor("#ffffff"));
    painter.drawEllipse(QRectF(90, 100, 30, 40));
    painter.drawEllipse(QRectF(130, 100, 30, 40));
    painter.setPen(QPen(Qt::black, 2));
    painter.setBrush(QColor("#000000"));
    painter.drawEllipse(QRectF(97, 110, 16, 22));
    painter.drawEllipse(QRectF(137, 110, 16, 22));
    painter.setBrush(QColor("#ffffff"));
    painter.drawEllipse(QRectF(103, 115, 5, 5));
    painter.drawEllipse(QRectF(143, 115, 5, 5));

    // 绘制兔子的嘴巴
    painter.setPen(QPen(QColor("#d95259"), 4));
    painter.setBrush(QColor("#d95259"));
    painter.drawEllipse(QRectF(100, 145, 60, 40));
    painter.setBrush(QColor("#ffffff"));
    painter.drawEllipse(QRectF(110, 150, 10, 10));
    painter.drawEllipse(QRectF(140, 150, 10, 10));

    // 绘制兔子的身体
    painter.setBrush(QColor("#f7c2b7"));
    painter.drawEllipse(QRectF(20, 200, 200, 150));

    // 绘制兔子的手臂
    painter.setPen(Qt::NoPen);
    painter.setBrush(QColor("#f2a272"));
    painter.drawEllipse(QRectF(10, 210, 50, 80));
    painter.drawEllipse(QRectF(210, 210, 50, 80));
    painter.setBrush(QColor("#ffb7a2"));
    painter.drawEllipse(QRectF(12, 218, 46, 66));
    painter.drawEllipse(QRectF(212, 218, 46, 66));

    // 绘制兔子的腿
    painter.setPen(Qt::NoPen);
    painter.setBrush(QColor("#f2a272"));
    painter.drawEllipse(QRectF(60, 320, 50, 80));
    painter.drawEllipse(QRectF(140, 320, 50, 80));
    painter.setBrush(QColor("#ffb7a2"));
    painter.drawEllipse(QRectF(62, 328, 46, 66));
    painter.drawEllipse(QRectF(142, 328, 46, 66));
  }
};

.main

  QApplication app(argc, argv);

  drawRabbit ra;
  ra.resize(240, 400);
  ra.show();

  return app.exec();