wxpython的Hello,World代码探索

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python界面编程资料

https://wxpython.org/Phoenix/docs/html/gallery.html

#!/bin/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)

        # and put some text with a larger bold font on it
        st = wx.StaticText(pnl, label="Hello Friend!", pos=(500,260))
        font = st.GetFont()
        font.PointSize += 50
        font = font.Bold()
        st.SetFont(font)

        # create a menu bar
        self.makeMenuBar()

        # and a status bar
        self.CreateStatusBar()
        self.SetStatusText("Welcome to wxPython100!")


    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("This is a wxPython Hello World sample", 
                      "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 100')
    frm.Show()
    app.MainLoop()

super()的解释

https://www.cnblogs.com/lovemo1314/archive/2011/05/03/2035005.html

fileMenu.AppendSeparator()

这个函数是在两个子选项之间添加分隔符

MessageBox的标题是逗号后面的那句，消息内容是第一句。

wx.OK|wx.ICON_INFORMATION

红色矩形框，这一句少了会报错

不加到最后一个OnAbout也不行

每句都加也不行

只能加到最后一句

helloItem = fileMenu.Append(-1, "&Hello...\tCtrl-H",

"Help string shown in status bar for this menu item")

-1可以，-2可以，-3可以，-4不行，-4以下都不行。0---10000可以

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