使用setappdata,getappdata等完成数据参数交换
function varargout = test1(varargin) % TEST1 M-file for test1.fig % TEST1, by itself, creates a new TEST1 or raises the existing % singleton*. % % H = TEST1 returns the handle to a new TEST1 or the handle to % the existing singleton*. % % TEST1('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in TEST1.M with the given input arguments. % % TEST1('Property','Value',...) creates a new TEST1 or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before test1_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to test1_OpeningFcn via varargin. % % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)". % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help test1 % Last Modified by GUIDE v2.5 04-Oct-2012 17:21:13 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @test1_OpeningFcn, ... 'gui_OutputFcn', @test1_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 % End initialization code - DO NOT EDIT % --- Executes just before test1 is made visible. function test1_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to test1 (see VARARGIN) % Choose default command line output for test1 handles.output = hObject; % Update handles structure guidata(hObject, handles); setappdata(handles.btn_draw,'numa',1); setappdata(handles.btn_draw,'numb',1); setappdata(handles.btn_draw,'numc',1); % UIWAIT makes test1 wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = test1_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; % --- Executes on button press in btn_draw. function btn_draw_Callback(hObject, eventdata, handles) % hObject handle to btn_draw (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) %求解一元二次方程 myres=roots([getappdata(hObject,'numa'),getappdata(hObject,'numb'),getappdata(hObject,'numc')]); set(handles.result,'string',mat2str(myres)) ; function a_num_Callback(hObject, eventdata, handles) % hObject handle to a_num (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 a_num as text % str2double(get(hObject,'String')) returns contents of a_num as a double numa=str2double(get(hObject,'string')); if isnan(numa) errordlg('请输入数字','输入错误','modal'); end setappdata(handles.btn_draw,'numa',numa); % --- Executes during object creation, after setting all properties. function a_num_CreateFcn(hObject, eventdata, handles) % hObject handle to a_num (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function b_num_Callback(hObject, eventdata, handles) % hObject handle to b_num (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 b_num as text % str2double(get(hObject,'String')) returns contents of b_num as a double numb=str2double(get(hObject,'string')); if isnan(numb) errordlg('请输入数字','输入错误','modal'); end setappdata(handles.btn_draw,'numb',numb); % --- Executes during object creation, after setting all properties. function b_num_CreateFcn(hObject, eventdata, handles) % hObject handle to b_num (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function c_num_Callback(hObject, eventdata, handles) % hObject handle to c_num (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 c_num as text % str2double(get(hObject,'String')) returns contents of c_num as a double numc=str2double(get(hObject,'string')); if isnan(numc) errordlg('请输入数字','输入错误','modal'); end setappdata(handles.btn_draw,'numc',numc); % --- Executes during object creation, after setting all properties. function c_num_CreateFcn(hObject, eventdata, handles) % hObject handle to c_num (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end
SETAPPDATA Set application-defined data.
SETAPPDATA(H, NAME, VALUE) sets application-defined data for
the object with handle H. The application-defined data,
which is created if it does not already exist, is
assigned a NAME and a VALUE. VALUE may be anything.
GETAPPDATA Get value of application-defined data.
VALUE = GETAPPDATA(H, NAME) gets the value of the
application-defined data with name specified by NAME in the
object with handle H. If the application-defined data does
not exist, an empty matrix will be returned in VALUE.
VALUES = GETAPPDATA(H) returns all application-defined data
for the object with handle H.
RMAPPDATA Remove application-defined data.
RMAPPDATA(H, NAME) removes the application-defined data NAME,
from the object specified by handle H.
ISAPPDATA True if application-defined data exists.
ISAPPDATA(H, NAME) returns 1 if application-defined data with
the specified NAME exists on the object specified by handle H,
and returns 0 otherwise.