Question

这是使用GUIDE的GUI的代码

function varargout = testcreat(varargin)
    gui_Singleton = 1;
    gui_State = struct('gui_Name',       mfilename, ...
                       'gui_Singleton',  gui_Singleton, ...
                       'gui_OpeningFcn', @testcreat_OpeningFcn, ...
                       'gui_OutputFcn',  @testcreat_OutputFcn, ...
                       'gui_LayoutFcn',  [] , ...
                       'gui_Callback',   []);
    if nargin && ischar(varargin{1})
        gui_State.gui_Callback = str2func(varargin{1});
    end

    if nargout
        [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
    else
        gui_mainfcn(gui_State, varargin{:});
    end

function testcreat_OpeningFcn(hObject, eventdata, handles, varargin)
    handles.output = hObject;
    guidata(hObject, handles);

function varargout = testcreat_OutputFcn(hObject, eventdata, handles) 
    varargout{1} = handles.output;

function edit1_Callback(hObject, eventdata, handles)

function edit1_CreateFcn(hObject, eventdata, handles)
    if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
        set(hObject,'BackgroundColor','white');
    end

function pushbutton1_Callback(hObject, eventdata, handles)
    a=get(handles.edit1,'String');
    set(handles.text1,'String',a);
    guidata(hObject,handles);

我正在尝试在Matlab中构建一个GUI，上面的代码是一个测试。但它不会运行，它会提供错误信息，如：

Attempt to reference field of non-structure array.
Error in testcreat>pushbutton1_Callback (line 104)
    a=get(handles.edit1,'String');
Error in gui_mainfcn (line 95)
        feval(varargin{:});
Error in testcreat (line 42)
    gui_mainfcn(gui_State, varargin{:});
Error in @(hObject,eventdata)testcreat('pushbutton1_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating uicontrol Callback

有人知道为什么吗？

Answer 1

我终于明白了。 ORZ 这是因为我试图通过直接在.fig文件中操作来使用GUI。如果是这样，数据无法传输。正确的方法是按下.m文件中的运行按钮！

希望没有人像我一样做同样愚蠢的事情。

在Matlab中使用GUIDE时出错

1 个答案: