Maltab中，如何用APP设计一个能够进行简单的十进制加、减、乘、除等计算功能的计算器

在MATLAB中，可以使用APP Designer来创建一个简单的计算器应用程序。下面是一些步骤：

1. 打开MATLAB并选择“APP Designer”选项卡。
2. 在APP Designer窗口中，选择“Blank App”模板并命名您的应用程序。
3. 添加一个“Numeric Edit Field”组件，用于输入数字。
4. 添加四个“Push Button”组件，分别对应加、减、乘、除操作。
5. 在每个按钮的回调函数中，编写相应的计算代码，并将结果输出到一个“Text Area”组件中。
6. 保存并运行您的应用程序。

以下是一个简单的计算器应用程序的示例代码：

classdef Calculator < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure      matlab.ui.Figure
        NumberField   matlab.ui.control.NumericEditField
        AddButton     matlab.ui.control.Button
        SubtractButton matlab.ui.control.Button
        MultiplyButton matlab.ui.control.Button
        DivideButton  matlab.ui.control.Button
        ResultArea    matlab.ui.control.TextArea
    end

    % Callbacks that handle component events
    methods (Access = private)

        % Button pushed function: AddButton
        function AddButtonPushed(app, event)
            a = app.NumberField.Value;
            b = app.ResultArea.Value;
            c = a + b;
            app.ResultArea.Value = c;
        end

        % Button pushed function: SubtractButton
        function SubtractButtonPushed(app, event)
            a = app.NumberField.Value;
            b = app.ResultArea.Value;
            c = b - a;
            app.ResultArea.Value = c;
        end

        % Button pushed function: MultiplyButton
        function MultiplyButtonPushed(app, event)
            a = app.NumberField.Value;
            b = app.ResultArea.Value;
            c = a * b;
            app.ResultArea.Value = c;
        end

        % Button pushed function: DivideButton
        function DivideButtonPushed(app, event)
            a = app.NumberField.Value;
            b = app.ResultArea.Value;
            c = b / a;
            app.ResultArea.Value = c;
        end
    end

    % App initialization and construction
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)
            % Create UIFigure and components
            app.UIFigure = uifigure;
            app.UIFigure.Position = [100 100 320 240];
            app.UIFigure.Name = 'Calculator';

            % Create NumberField
            app.NumberField = uieditfield(app.UIFigure, 'numeric');
            app.NumberField.Position = [24 189 100 22];

            % Create AddButton
            app.AddButton = uibutton(app.UIFigure, 'push');
            app.AddButton.ButtonPushedFcn = createCallbackFcn(app, @AddButtonPushed, true);
            app.AddButton.Position = [24 122 100 22];
            app.AddButton.Text = 'Add';

            % Create SubtractButton
            app.SubtractButton = uibutton(app.UIFigure, 'push');
            app.SubtractButton.ButtonPushedFcn = createCallbackFcn(app, @SubtractButtonPushed, true);
            app.SubtractButton.Position = [24 93 100 22];
            app.SubtractButton.Text = 'Subtract';

            % Create MultiplyButton
            app.MultiplyButton = uibutton(app.UIFigure, 'push');
            app.MultiplyButton.ButtonPushedFcn = createCallbackFcn(app, @MultiplyButtonPushed, true);
            app.MultiplyButton.Position = [24 64 100 22];
            app.MultiplyButton.Text = 'Multiply';

            % Create DivideButton
            app.DivideButton = uibutton(app.UIFigure, 'push');
            app.DivideButton.ButtonPushedFcn = createCallbackFcn(app, @DivideButtonPushed, true);
            app.DivideButton.Position = [24 35 100 22];
            app.DivideButton.Text = 'Divide';

            % Create ResultArea
            app.ResultArea = uitextarea(app.UIFigure);
            app.ResultArea.Position = [160 35 136 176];
            app.ResultArea.Value = '0';
        end
    end

    % App creation and deletion
    methods (Access = public)

        % Construct app
        function app = Calculator

            % Create UIFigure and components
            createComponents(app)

            % Run the app
            run(app)
        end
    end
end

您可以将此代码复制并粘贴到APP Designer中，然后进行修改和定制，以满足您的需求。