用matlab做一个app的代码

以下是一个简单的 MATLAB App 代码示例，用于创建一个简单的计算器应用程序：

1. 首先，创建一个新的 MATLAB App 项目。在 MATLAB 工具栏上选择 "APPS"，然后选择 "App Designer"。

2. 在 App Designer 中，添加一个 "Grid Layout"，并在其上添加一些按钮和文本框，以创建一个简单的计算器界面。

3. 在 "Code View" 中，使用 MATLAB 代码编写应用程序逻辑。以下是一个简单的计算器应用程序示例：

classdef calculatorApp < matlab.apps.AppBase
    
    % Properties that correspond to app components
    properties (Access = public)
        UIFigure      matlab.ui.Figure
        GridLayout    matlab.ui.container.GridLayout
        Button0       matlab.ui.control.Button
        Button1       matlab.ui.control.Button
        Button2       matlab.ui.control.Button
        Button3       matlab.ui.control.Button
        Button4       matlab.ui.control.Button
        Button5       matlab.ui.control.Button
        Button6       matlab.ui.control.Button
        Button7       matlab.ui.control.Button
        Button8       matlab.ui.control.Button
        Button9       matlab.ui.control.Button
        ButtonPlus    matlab.ui.control.Button
        ButtonMinus   matlab.ui.control.Button
        ButtonTimes   matlab.ui.control.Button
        ButtonDivide  matlab.ui.control.Button
        ButtonEquals  matlab.ui.control.Button
        ButtonClear   matlab.ui.control.Button
        Display       matlab.ui.control.EditField
    end
    
    % Callbacks that handle component events
    methods (Access = private)
        
        % Button0 callback
        function Button0Pushed(app, event)
            app.Display.Value = [app.Display.Value, '0'];
        end
        
        % Button1 callback
        function Button1Pushed(app, event)
            app.Display.Value = [app.Display.Value, '1'];
        end
        
        % Button2 callback
        function Button2Pushed(app, event)
            app.Display.Value = [app.Display.Value, '2'];
        end
        
        % Button3 callback
        function Button3Pushed(app, event)
            app.Display.Value = [app.Display.Value, '3'];
        end
        
        % Button4 callback
        function Button4Pushed(app, event)
            app.Display.Value = [app.Display.Value, '4'];
        end
        
        % Button5 callback
        function Button5Pushed(app, event)
            app.Display.Value = [app.Display.Value, '5'];
        end
        
        % Button6 callback
        function Button6Pushed(app, event)
            app.Display.Value = [app.Display.Value, '6'];
        end
        
        % Button7 callback
        function Button7Pushed(app, event)
            app.Display.Value = [app.Display.Value, '7'];
        end
        
        % Button8 callback
        function Button8Pushed(app, event)
            app.Display.Value = [app.Display.Value, '8'];
        end
        
        % Button9 callback
        function Button9Pushed(app, event)
            app.Display.Value = [app.Display.Value, '9'];
        end
        
        % ButtonPlus callback
        function ButtonPlusPushed(app, event)
            app.Display.Value = [app.Display.Value, '+'];
        end
        
        % ButtonMinus callback
        function ButtonMinusPushed(app, event)
            app.Display.Value = [app.Display.Value, '-'];
        end
        
        % ButtonTimes callback
        function ButtonTimesPushed(app, event)
            app.Display.Value = [app.Display.Value, '*'];
        end
        
        % ButtonDivide callback
        function ButtonDividePushed(app, event)
            app.Display.Value = [app.Display.Value, '/'];
        end
        
        % ButtonEquals callback
        function ButtonEqualsPushed(app, event)
            result = eval(app.Display.Value);
            app.Display.Value = num2str(result);
        end
        
        % ButtonClear callback
        function ButtonClearPushed(app, event)
            app.Display.Value = '';
        end
    end
    
    % App initialization and construction
    methods (Access = private)
        
        % Create UIFigure and components
        function createComponents(app)
            
            % Create UIFigure and set properties
            app.UIFigure = uifigure('Visible', 'off');
            app.UIFigure.Position = [100 100 640 480];
            app.UIFigure.Name = 'Calculator';
            app.UIFigure.Resize = 'off';
            
            % Create GridLayout
            app.GridLayout = uigridlayout(app.UIFigure);
            app.GridLayout.ColumnWidth = {'1x', '1x', '1x', '1x'};
            app.GridLayout.RowHeight = {'1x', '1x', '1x', '1x', '1x'};
            app.GridLayout.Padding = [10 10 10 10];
            
            % Create Button0
            app.Button0 = uibutton(app.GridLayout, 'push');
            app.Button0.ButtonPushedFcn = createCallbackFcn(app, @Button0Pushed, true);
            app.Button0.Layout.Row = 5;
            app.Button0.Layout.Column = 2;
            app.Button0.Text = '0';
            
            % Create Button1
            app.Button1 = uibutton(app.GridLayout, 'push');
            app.Button1.ButtonPushedFcn = createCallbackFcn(app, @Button1Pushed, true);
            app.Button1.Layout.Row = 4;
            app.Button1.Layout.Column = 1;
            app.Button1.Text = '1';
            
            % Create Button2
            app.Button2 = uibutton(app.GridLayout, 'push');
            app.Button2.ButtonPushedFcn = createCallbackFcn(app, @Button2Pushed, true);
            app.Button2.Layout.Row = 4;
            app.Button2.Layout.Column = 2;
            app.Button2.Text = '2';
            
            % Create Button3
            app.Button3 = uibutton(app.GridLayout, 'push');
            app.Button3.ButtonPushedFcn = createCallbackFcn(app, @Button3Pushed, true);
            app.Button3.Layout.Row = 4;
            app.Button3.Layout.Column = 3;
            app.Button3.Text = '3';
            
            % Create Button4
            app.Button4 = uibutton(app.GridLayout, 'push');
            app.Button4.ButtonPushedFcn = createCallbackFcn(app, @Button4Pushed, true);
            app.Button4.Layout.Row = 3;
            app.Button4.Layout.Column = 1;
            app.Button4.Text = '4';
            
            % Create Button5
            app.Button5 = uibutton(app.GridLayout, 'push');
            app.Button5.ButtonPushedFcn = createCallbackFcn(app, @Button5Pushed, true);
            app.Button5.Layout.Row = 3;
            app.Button5.Layout.Column = 2;
            app.Button5.Text = '5';
            
            % Create Button6
            app.Button6 = uibutton(app.GridLayout, 'push');
            app.Button6.ButtonPushedFcn = createCallbackFcn(app, @Button6Pushed, true);
            app.Button6.Layout.Row = 3;
            app.Button6.Layout.Column = 3;
            app.Button6.Text = '6';
            
            % Create Button7
            app.Button7 = uibutton(app.GridLayout, 'push');
            app.Button7.ButtonPushedFcn = createCallbackFcn(app, @Button7Pushed, true);
            app.Button7.Layout.Row = 2;
            app.Button7.Layout.Column = 1;
            app.Button7.Text = '7';
            
            % Create Button8
            app.Button8 = uibutton(app.GridLayout, 'push');
            app.Button8.ButtonPushedFcn = createCallbackFcn(app, @Button8Pushed, true);
            app.Button8.Layout.Row = 2;
            app.Button8.Layout.Column = 2;
            app.Button8.Text = '8';
            
            % Create Button9
            app.Button9 = uibutton(app.GridLayout, 'push');
            app.Button9.ButtonPushedFcn = createCallbackFcn(app, @Button9Pushed, true);
            app.Button9.Layout.Row = 2;
            app.Button9.Layout.Column = 3;
            app.Button9.Text = '9';
            
            % Create ButtonPlus
            app.ButtonPlus = uibutton(app.GridLayout, 'push');
            app.ButtonPlus.ButtonPushedFcn = createCallbackFcn(app, @ButtonPlusPushed, true);
            app.ButtonPlus.Layout.Row = 5;
            app.ButtonPlus.Layout.Column = 3;
            app.ButtonPlus.Text = '+';
            
            % Create ButtonMinus
            app.ButtonMinus = uibutton(app.GridLayout, 'push');
            app.ButtonMinus.ButtonPushedFcn = createCallbackFcn(app, @ButtonMinusPushed, true);
            app.ButtonMinus.Layout.Row = 4;
            app.ButtonMinus.Layout.Column = 4;
            app.ButtonMinus.Text = '-';
            
            % Create ButtonTimes
            app.ButtonTimes = uibutton(app.GridLayout, 'push');
            app.ButtonTimes.ButtonPushedFcn = createCallbackFcn(app, @ButtonTimesPushed, true);
            app.ButtonTimes.Layout.Row = 3;
            app.ButtonTimes.Layout.Column = 4;
            app.ButtonTimes.Text = '*';
            
            % Create ButtonDivide
            app.ButtonDivide = uibutton(app.GridLayout, 'push');
            app.ButtonDivide.ButtonPushedFcn = createCallbackFcn(app, @ButtonDividePushed, true);
            app.ButtonDivide.Layout.Row = 2;
            app.ButtonDivide.Layout.Column = 4;
            app.ButtonDivide.Text = '/';
            
            % Create ButtonEquals
            app.ButtonEquals = uibutton(app.GridLayout, 'push');
            app.ButtonEquals.ButtonPushedFcn = createCallbackFcn(app, @ButtonEqualsPushed, true);
            app.ButtonEquals.Layout.Row = 5;
            app.ButtonEquals.Layout.Column = 4;
            app.ButtonEquals.Text = '=';
            
            % Create ButtonClear
            app.ButtonClear = uibutton(app.GridLayout, 'push');
            app.ButtonClear.ButtonPushedFcn = createCallbackFcn(app, @ButtonClearPushed, true);
            app.ButtonClear.Layout.Row = 1;
            app.ButtonClear.Layout.Column = 3;
            app.ButtonClear.Text = 'Clear';
            
            % Create Display
            app.Display = uieditfield(app.GridLayout, 'text');
            app.Display.Layout.Row = 1;
            app.Display.Layout.Column = [1 2 3 4];
            app.Display.Value = '';
        end
    end
    
    % App creation and deletion
    methods (Access = public)
        
        % Construct app
        function app = calculatorApp
            
            % Create UIFigure and components
            createComponents(app)
            
            % Show the figure after all components are created
            app.UIFigure.Visible = 'on';
        end
    end
end

4. 运行应用程序，你将看到一个简单的计算器界面。在界面上按下按钮，你将能够进行基本的数学计算。

注意：以上代码只是一个简单的示例，你可以根据自己的需要修改和扩展该代码。