【wxPython学习】1 安装与HelloWorld

╰半夏微凉° 2023-02-22 15:53 17阅读 0赞

# 0 前言 #

不定期学习wxPython，随学随写，不定期更新，争取一周至少一更。  
wxPython是一个经典的，基于Python的GUI界面。

# 1 安装 #

pip install wxPython

# 2 Hello World #

# First things, first. Import the wxPython package.
    import wx
    
    # Next, create an application object.
    app = wx.App()
    
    # Then a frame.
    frm = wx.Frame(None, title="Hello World")
    
    # Show it.
    frm.Show()
    
    # Start the event loop.
    app.MainLoop()

import wx; a=wx.App(); wx.Frame(None, title="Hello World").Show(); a.MainLoop()

#!/usr/bin/env python
    """
    Hello World, but with more meat.
    """
    
    import wx
    
    class HelloFrame(wx.Frame):
        """
        A Frame that says Hello World
        """
    
        def __init__(self, *args, **kw):
            # ensure the parent's __init__ is called
            super(HelloFrame, self).__init__(*args, **kw)
    
            # create a panel in the frame
            pnl = wx.Panel(self)
    
            # put some text with a larger bold font on it
            st = wx.StaticText(pnl, label="Hello World!")
            font = st.GetFont()
            font.PointSize += 10
            font = font.Bold()
            st.SetFont(font)
    
            # and create a sizer to manage the layout of child widgets
            sizer = wx.BoxSizer(wx.VERTICAL)
            sizer.Add(st, wx.SizerFlags().Border(wx.TOP|wx.LEFT, 25))
            pnl.SetSizer(sizer)
    
            # create a menu bar
            self.makeMenuBar()
    
            # and a status bar
            self.CreateStatusBar()
            self.SetStatusText("Welcome to wxPython!")
    
    
        def makeMenuBar(self):
            """
            A menu bar is composed of menus, which are composed of menu items.
            This method builds a set of menus and binds handlers to be called
            when the menu item is selected.
            """
    
            # Make a file menu with Hello and Exit items
            fileMenu = wx.Menu()
            # The "\t..." syntax defines an accelerator key that also triggers
            # the same event
            helloItem = fileMenu.Append(-1, "&Hello...\tCtrl-H",
                    "Help string shown in status bar for this menu item")
            fileMenu.AppendSeparator()
            # When using a stock ID we don't need to specify the menu item's
            # label
            exitItem = fileMenu.Append(wx.ID_EXIT)
    
            # Now a help menu for the about item
            helpMenu = wx.Menu()
            aboutItem = helpMenu.Append(wx.ID_ABOUT)
    
            # Make the menu bar and add the two menus to it. The '&' defines
            # that the next letter is the "mnemonic" for the menu item. On the
            # platforms that support it those letters are underlined and can be
            # triggered from the keyboard.
            menuBar = wx.MenuBar()
            menuBar.Append(fileMenu, "&File")
            menuBar.Append(helpMenu, "&Help")
    
            # Give the menu bar to the frame
            self.SetMenuBar(menuBar)
    
            # Finally, associate a handler function with the EVT_MENU event for
            # each of the menu items. That means that when that menu item is
            # activated then the associated handler function will be called.
            self.Bind(wx.EVT_MENU, self.OnHello, helloItem)
            self.Bind(wx.EVT_MENU, self.OnExit,  exitItem)
            self.Bind(wx.EVT_MENU, self.OnAbout, aboutItem)
    
    
        def OnExit(self, event):
            """Close the frame, terminating the application."""
            self.Close(True)
    
    
        def OnHello(self, event):
            """Say hello to the user."""
            wx.MessageBox("Hello again from wxPython")
    
    
        def OnAbout(self, event):
            """Display an About Dialog"""
            wx.MessageBox("This is a wxPython Hello World sample",
                          "About Hello World 2",
                          wx.OK|wx.ICON_INFORMATION)
    
    
    if __name__ == '__main__':
        # When this module is run (not imported) then create the app, the
        # frame, show it, and start the event loop.
        app = wx.App()
        frm = HelloFrame(None, title='Hello World 2')
        frm.Show()
        app.MainLoop()

# 3 参考 #

[wxPython官方网站手册][wxPython]

[wxPython]: https://wxpython.org/pages/overview/