[求助][讨论]GUI中不同控件间实时数据传递问题

[jojocleo]

我现在做了个GUI界面，需要在其中的两个控件中进行实时数据传递，就是控件1的数据是个变量，随时间变化，而控件2需要这个变量的值进行判断。但是我在运行控件2的时候控件1的命令就会停止，控件2调用的这个变量也就不随时间变化了，这个问题怎么解决？我把一个简单的程序附上，大家看看。
function display_Callback(hObject, eventdata, handles)
% hObject handle to display (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
for i=1:1000
set(handles.edit_output,'string',num2str(i));
setappdata(handles.figure1,'angle',i);
pause(0.2)
end
%----------
function edit_output_Callback(hObject, eventdata, handles)
% hObject handle to edit_output (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit_output as text
% str2double(get(hObject,'String')) returns contents of edit_output
% as a double
%-----------
function send_Callback(hObject, eventdata, handles)
% hObject handle to send (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% global angle
global s
% a=get(handles.edit_input,'string');
% fwrite(s,a); %向com1口发送两个数据48和59
for i=1:100
getappdata(handles.figure1,'angle')
pause(0.2)
end
%-----------
output是显示窗口，把display中的变量i显示出来，i随时间变化，同时把i传递给send控件，运行send控件时，会使display中的命令停止。