Python中Wxpython实现剪切、复制、粘贴和文件打开示例

class MyFrame(wx.Frame):
    def __init__(self):
        super().__init__(None, title='My Frame')

        # 创建菜单栏
        menubar = wx.MenuBar()

        # 创建编辑菜单
        edit_menu = wx.Menu()
        edit_menu.Append(wx.ID_CUT, 'Cut')
        edit_menu.Append(wx.ID_COPY, 'Copy')
        edit_menu.Append(wx.ID_PASTE, 'Paste')
        menubar.Append(edit_menu, '&Edit')

        # 设置菜单栏
        self.SetMenuBar(menubar)

        # 绑定事件处理函数
        self.Bind(wx.EVT_MENU, self.on_cut, id=wx.ID_CUT)
        self.Bind(wx.EVT_MENU, self.on_copy, id=wx.ID_COPY)
        self.Bind(wx.EVT_MENU, self.on_paste, id=wx.ID_PASTE)

    def on_cut(self, event):
        # 获取当前选中的文本
        text = self.GetText()

        # 将选中文本复制到剪贴板
        wx.TheClipboard.SetData(wx.TextDataObject(text))

        # 删除选中文本
        self.Remove(self.GetSelectionStart(), self.GetSelectionEnd())

    def on_copy(self, event):
        # 获取当前选中的文本
        text = self.GetText()

        # 将选中文本复制到剪贴板
        wx.TheClipboard.SetData(wx.TextDataObject(text))

    def on_paste(self, event):
        # 从剪贴板获取文本
        text = wx.TheClipboard.GetData()

        # 将文本插入到当前光标位置
        self.InsertText(text)


if __name__ == '__main__':
    app = wx.App()
    frame = MyFrame()
    frame.Show()
    app.MainLoop()

class MyFrame(wx.Frame):
    def __init__(self):
        super().__init__(None, title='My Frame')

        # 创建菜单栏
        menubar = wx.MenuBar()

        # 创建文件菜单
        file_menu = wx.Menu()
        file_menu.Append(wx.ID_OPEN, 'Open')
        menubar.Append(file_menu, '&File')

        # 设置菜单栏
        self.SetMenuBar(menubar)

        # 绑定事件处理函数
        self.Bind(wx.EVT_MENU, self.on_open, id=wx.ID_OPEN)

    def on_open(self, event):
        # 创建文件打开对话框
        dialog = wx.FileDialog(self, 'Open File', '', '', 'All Files (*.*)|*.*', wx.FD_OPEN)

        # 显示文件打开对话框
        if dialog.ShowModal() == wx.ID_OK:
            # 获取用户选择的文件路径
            filename = dialog.GetPath()

            # 读取文件内容
            with open(filename, 'r') as f:
                text = f.read()

            # 将文件内容显示在窗口中
            self.SetLabel(text)


if __name__ == '__main__':
    app = wx.App()
    frame = MyFrame()
    frame.Show()
    app.MainLoop()