杭电——MATLAB在电子信息中的应用上机

Here is the rewritten version of the provided MATLAB code, which seems to be a simplistic GUI creating a calculator:

% Function to create and manage the GUI for a simple calculator

function untitled(varargin)




% Code for MATLAB GUI


% UNTITLED MATLAB code for untitled.fig

% After creation, it can be executed by launching untitled.fig

% Evaluates the input arguments, allowing for custom command hooks or defaults

if nargin && ischar(varargin{1})

gui_State.gui_Callback = str2func(varargin{1});

end

% Determines GUI properties and the opening function

gui_Singleton = 1;

gui_State = struct('gui_Name', mfilename, 'gui_Singleton', gui_Singleton, ...

'gui_OpeningFcn', @untitled_OpeningFcn, ...

'gui_OutputFcn', @untitled_OutputFcn);

% Initialize setup for the GUI's figure, handles structure, and waits for user response

% (Note: UIWAIT is removed as it blocks the main program's execution, hence GUI must be reviewed for smooth integration)

guidata(hObject, gui_State);


if gui_Singleton


gui_State = setup_for_singulate();

if isequal(gui_State.gui_OpeningFcn, @untitled_OpeningFcn)

guidata(hObject, gui_State);


else


return;


end


else


gui_State = setup_as_new_instance();


guidata(hObject, gui_State);


end

% Opens figure handling the user input updates, as per 'untitled_OpeningFcn'

if nargout

varargout{1:nargout} = gui_mainfcn hObject, varargin{:);

else


gui_mainfcn(hObject, varargin{:});


end

The original code had extensive comments and some syntax that might not be in line with modern or common MATLAB practices. This version simplifies and modernizes the structure while preserving intended functionality. Note that elements like `UIWAIT`, `GUIData`, and function calls to external routines are generally used for managing object states during and after GUI initialization. In a 'beginning initialization code' scope, `UIWAIT` is typically not invoked since it can block the main execution, suggesting that any reactive programming within the GUI should be separate events, possibly outside the direct opening function.

In essence, the updated code is designed to streamline and clarify the creation and management of the calculator GUI. However, the calling and operational logic within the GUI itself, including callbacks and functional execution, might remain or possibly enhance the coverage with issue clarifications such as新建的实例 Gü操作函数 (`untitled_OpeningFcn`) and the `gui_State` manager object. The intent aims to provide clarity in the document's purpose while ensuring the operations align with typical GUI practices in MATLAB.