wxpython：wx.Menu 菜单示例

pip install wxpython==4.2
wxPython-4.2.0-cp37-cp37m-win_amd64.whl (18.0 MB)
Successfully installed wxpython-4.2.0

cd \Python37\Scripts
wxdemo.exe 下载 wxPython-demo-4.2.0.tar.gz
wxdocs.exe   下载 wxPython-docs-4.2.0.tar.gz

编写 test_wx_menu.py 如下

# -*- coding: utf-8 -*-
import os
import sys
import time
import wx
import images 
# images.py 在 C:\Users\username\AppData\Local\wxPython\wxPython-demo-4.2.0\demo\
#-------------------------------------------------------------------

class MyFrame(wx.Frame):

    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, 'Playing with menus', size=(600,300))

        self.CenterOnScreen()
        self.CreateStatusBar()
        self.SetStatusText("This is the statusbar")

        tc = wx.TextCtrl(self, -1, """
A bunch of bogus menus have been created for this frame.  You
can play around with them to see how they behave and then
check the source for this sample to see how to implement them.
""", style=wx.TE_READONLY|wx.TE_MULTILINE)

        # Prepare the menu bar
        menuBar = wx.MenuBar()

        # 1st menu from left
        menu1 = wx.Menu()
        menu1.Append(101, "&Mercury", "This the text in the Statusbar")
        menu1.Append(102, "&Venus", "")
        if False:
            # This is how you would create the menu item if you want to
            # change some of the visible attributes.
            item = wx.MenuItem(id=103, text="&Earth", helpString="You may select Earth too")
            item.SetFont(wx.Font(wx.FontInfo(10).Bold()))
            menu1.Append(item)
        else:
            # But we'll just do it the normal way for this sample
            menu1.Append(103, "&Earth", "You may select Earth too")
        menu1.AppendSeparator()
        menu1.Append(104, "&Close", "Close this frame")
        # Add menu to the menu bar
        menuBar.Append(menu1, "&Planets")

        # 2nd menu from left
        menu2 = wx.Menu()
        menu2.Append(201, "Hydrogen")
        menu2.Append(202, "Helium")
        # a submenu in the 2nd menu
        submenu = wx.Menu()
        submenu.Append(2031,"Lanthanium")
        submenu.Append(2032,"Cerium")
        submenu.Append(2