choice.py

import wx


# 自定义一个窗口类MyFrame
class MyFrame(wx.Frame):
    def __init__(self):
        super().__init__(parent=None, title="下拉列表", size=(400, 130))
        self.Center()  # 设置窗口居中
        # 放一个面板，用于布局其他控件
        panel = wx.Panel(parent=self)
        hbox1 = wx.BoxSizer(wx.HORIZONTAL)
        # 创建静态文本
        statictext = wx.StaticText(panel, label='选择你喜欢的编程语言：')
        list1 = ['Python', 'Java', "C++"]
        ch1 = wx.ComboBox(panel, -1, value='C', choices=list1, style=wx.CB_SORT)
        # 添加事件处理
        self.Bind(wx.EVT_COMBOBOX, self.on_combobox, ch1)

        hbox1.Add(statictext, 1, flag=wx.LEFT | wx.RIGHT | wx.FIXED_MINSIZE, border=5)
        hbox1.Add(ch1, 1, flag=wx.LEFT | wx.RIGHT | wx.FIXED_MINSIZE, border=5)

        hbox2 = wx.BoxSizer(wx.HORIZONTAL)
        statictext = wx.StaticText(panel, label='选择性别：')
        list2 = ['男', '女']
        ch2 = wx.Choice(panel, -1, choices=list2)
        ch2.SetSelection(0)
        hbox2.Add(statictext, 1, flag=wx.LEFT | wx.RIGHT | wx.FIXED_MINSIZE, border=5)
        hbox2.Add(ch2, 1, flag=wx.LEFT | wx.RIGHT | wx.FIXED_MINSIZE, border=5)

        # 添加事件处理
        self.Bind(wx.EVT_CHOICE, self.on_choice, ch2)
        vbox = wx.BoxSizer(wx.VERTICAL)
        vbox.Add(hbox1, 1, flag=wx.ALL | wx.EXPAND, border=5)
        vbox.Add(hbox2, 1, flag=wx.ALL | wx.EXPAND, border=5)

        panel.SetSizer(vbox)

    def on_combobox(self, event):
        print("选择{0}".format(event.GetString()))

    def on_choice(self, event):
        print("选择{0}".format(event.GetString()))


# 自定以一个应用程序类
class App(wx.App):
    def OnInit(self):
        # 创建窗口对象
        frame = MyFrame()
        frame.Show()
        return True

    def OnExit(self):
        print("应用程序退出")
        return 0


if __name__ == '__main__':
    app = App()  # 创建自定以对象App
    app.MainLoop()  # 进入事件主循环