用qt编写一个输入焦距和物距，输出横向放大率和轴向放大率的代码，有ui界面

在Qt中创建一个简单的图形用户界面(GUI)来计算横向放大率和轴向放大率，你可以使用QMainWindow作为基础，并添加QLineEdit用于输入焦距(focus distance)和物距(object distance)，然后使用QPushButton触发计算并显示结果。下面是一个简化的示例代码：

#include <QApplication>
#include <QWidget>
#include <QLineEdit>
#include <QPushButton>
#include <QLabel>

// 定义计算放大率的函数
double calculateMagnification(double focus, double object) {
    return focus / object;
}

class MyWindow : public QMainWindow {
    Q_OBJECT

public:
    MyWindow(QWidget *parent = nullptr)
        : QMainWindow(parent)
    {
        // 设置窗口布局
        QWidget *centralWidget = new QWidget(this);
        setCentralWidget(centralWidget);

        QVBoxLayout *layout = new QVBoxLayout(centralWidget);

        QLabel *focusLabel = new QLabel("焦距 (mm):", this);
        QLineEdit *focusInput = new QLineEdit(this);
        QPushButton *calculateButton = new QPushButton("计算", this);
        QLabel *horizontalLabel = new QLabel("横向放大率:", this);
        QLabel *horizontalResult = new QLabel(this);
        QLabel *axialLabel = new QLabel("轴向放大率:", this);
        QLabel *axialResult = new QLabel(this);

        layout.addWidget(focusLabel);
        layout.addWidget(focusInput);
        layout.addWidget(calculateButton);
        layout.addWidget(horizontalLabel);
        layout.addWidget(horizontalResult);
        layout.addWidget(axialLabel);
        layout.addWidget(axialResult);

        connect(calculateButton, &QPushButton::clicked, this,
                [this, focusInput, focusLabel, horizontalResult, axialResult](bool checked) {
                    double focus = qAtof(focusInput->text().toStdString());
                    double object = 100; // 假设物距固定为100mm，实际应用中可让用户输入
                    double horizontalMag = calculateMagnification(focus, object);
                    double axialMag = focus / object;

                    horizontalResult->setText(QString::number(horizontalMag));
                    axialResult->setText(QString::number(axialMag));
                });

        resize(400, 200);
    }
};

int main(int argc, char *argv[]) {
    QApplication app(argc, argv);
    MyWindow window;
    window.show();
    return app.exec();
}