MATLAB：获取用户数据的问题＆＃39;从一个轴

Question

我的目标是从图像中创建一个切换按钮，并能够通过其他功能检索切换按钮的状态。我通过在userdata中存储信息并相应地处理该信息来完成此操作。但是，在某些函数中检索userdata时遇到了问题。我遇到问题的代码如下所示：

    % --- Executes on mouse press over axes background.
    function image1_Select(hObject, eventdata, handles)

    data = get(handles.axes1, 'UserData');

    if data == '1'  % was enabled
      data = '0';
      set(handles.button, 'enable', 'off') %controls a different button
      image = imread('im1.jpg');
      set(handles.axes1, 'CData', image) %when pressed, the image displayed toggles
    elseif data == '0' % was disabled
      data = '1';
      set(handles.button, 'enable', 'on')
      image = imread('im2.jpg');
      set(handles.axes1, 'CData', image)
    else
      errordlg('There has been an error, try again', 'Error')
      data = '0';
      set(handles.button, 'enable', 'off')
      image = imread('im1.jpg');
      set(handles.axes1, 'CData', image)
    end

    set(handles.axes1, 'UserData', data)

    % --- Executes on mouse press over axes background.
    function image2_Select(hObject, eventdata, handles)

    data = get(handles.axes2, 'UserData');

    if data == '1'  % was enabled
      data = '0';
      set(handles.button2, 'enable', 'off')
      image = imread('otherim1.jpg');
      set(handles.axes2, 'CData', image)
    elseif data == '0' % was disabled
      data = '1';
      set(handles.button2, 'enable', 'on')
      image = imread('otherim2.jpg');
      set(handles.axes2, 'CData', image)
    else
      errordlg('There has been an error, try again', 'Error')
      data = '0';
      set(handles.button2, 'enable', 'off')
      image = imread('otherim1.jpg');
      set(handles.axes2, 'CData', image)
    end

    set(handles.axes2, 'UserData', data)
    testdata = get(handles.axes1, 'UserData')

    function load(hObject, eventdata, handles)
      data1 = get(handles.axes1, 'UserData')
      data2 = get(handles.axes2, 'UserData')
      %other code, the above are the first lines in the function

testdata返回＆＃39; 1＆＃39; （如果之前调用set1）但data1和data2返回[ ]时应返回“{1}}”因为在set1之前调用了set2和load 发生了什么事？

谢谢！