GUI get(hobject, 'userdata')输入后变量为空
在利用get(hobject, 'userdata')获取edit text控件输入时，得到的输出为[ ]，请问具体什么原因？程序代码如下：
function varargout = a(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton',gui_Singleton, ...
'gui_OpeningFcn', @a_OpeningFcn, ...
'gui_OutputFcn',@a_OutputFcn, ...
'gui_LayoutFcn',[] , ...
'gui_Callback', []);
if nargin && ischar(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end
if nargout
= gui_mainfcn(gui_State, varargin{:});
else
gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT
% --- Executes just before a is made visible.
function a_OpeningFcn(hObject, eventdata, handles, varargin)
handles.output = hObject;
= xlsread('user_information.xls')
if ~iscellstr(raw)
for i = 1 : numel(raw)
n(i) = isnumeric(raw{i});
end
raw{n} = num2str(raw{n});
end
handles.user = raw(2 : end, 1)'; %获得用户名和密码
handles.code = raw(2 : end, 2)';
guidata(hObject, handles);
% --- Outputs from this function are returned to the command line.
function varargout = a_OutputFcn(hObject, eventdata, handles)
varargout{1} = handles.output;
function login_user_Callback(hObject, eventdata, handles)
function login_user_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
function login_code_Callback(hObject, eventdata, handles)
function login_code_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end
% --- Executes on button press in log.
function log_Callback(hObject, eventdata, handles)
user = get(handles.login_user, 'string')
% set(gcf,'userdata','a')
code =get(handles.login_code, 'userdata') %%主要问题处
users = handles.user
codes = handles.code
n = find(strcmp(users, {user}));
if length(n) && isequal(codes{n}, code)
h = msgbox('登陆成功！');
uiwait(h);
delete(gcf);
figure(1)
set(1, 'name', '系统界面');
else
errordlg('用户名或密码错误！', '错误提示');
set(handles.login_code, 'string', '')
set(hObject, 'userdata', '')
end
输入相应字符并运行后
code =
[]
页:
[1]