从旋转按钮Glade/GTK3获取值(python)

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, GObject

class MyWindow(Gtk.Window):
    def __init__(self):
        Gtk.Window.__init__(self, title="旋转按钮示例")
        self.set_default_size(200, 200)

        builder = Gtk.Builder()
        builder.add_from_file("path/to/your/glade/file.glade")

        self.spin_button = builder.get_object("spin_button")

        self.add(self.spin_button)

        self.connect("destroy", Gtk.main_quit)
        self.show_all()

    def get_spin_button_value(self):
        value = self.spin_button.get_value()
        print("旋转按钮的值为：", value)

win = MyWindow()
win.get_spin_button_value()
Gtk.main()