wxPython wx.MenuItem中的SetHelp()函数

在这篇文章中，我们将学习与wxPython的wx.MenuItem类相关的SetHelp()函数。SetHelp()函数只是用来设置与菜单项相关的帮助字符串。SetHelp()函数只接受helpstring作为一个参数。

语法。

wx.MenuItem.SetHelp(self, helpString)

参数。

代码示例。

import wx
  
  
class Example(wx.Frame):
  
    def __init__(self, *args, **kwargs):
        super(Example, self).__init__(*args, **kwargs)
  
        self.InitUI()
  
    def InitUI(self):
        self.locale = wx.Locale(wx.LANGUAGE_ENGLISH)
        self.menubar = wx.MenuBar()
        self.fileMenu = wx.Menu()
        self.st = wx.StaticText(self, label ="", pos =(20, 20), 
                                         style = wx.ALIGN_LEFT)
        self.item = wx.MenuItem(self.fileMenu, 1, '&Radio', 
                                      kind = wx.ITEM_CHECK)
  
        # set help string for menu item
        self.item.SetHelp(helpString ="New Help String")
  
        # print help string associated with menu item
        help = self.item.GetHelp()
  
        # set text of st as help string of item
        self.st.SetLabel(help)
        self.fileMenu.Append(self.item)
        self.menubar.Append(self.fileMenu, '&File')
        self.SetMenuBar(self.menubar)
        self.SetSize((350, 250))
        self.SetTitle('Icons and shortcuts')
        self.Centre()
  
def main():
    app = wx.App()
    ex = Example(None)
    ex.Show()
    app.MainLoop()
  
  
if __name__ == '__main__':
    main()

输出：