顺着实验发下matlab计算器

本文实现了mlapp的简易计算器实现，并打包了app；

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

        % Button pushed function: Button_0
        function Button_0Pushed(app, event)
           numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'0');
           end
        end

        % Button pushed function: Button_1
        function Button_1Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='1';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'1');
            end
        end

        % Button pushed function: Button_2
        function Button_2Pushed(app, event)
         numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='2';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'2');
            end
        end

        % Button pushed function: Button_3
        function Button_3Pushed(app, event)
           numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='3';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'3');
            end
        end

        % Button pushed function: Button_4
        function Button_4Pushed(app, event)
          numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='4';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'4');
            end
        end

        % Button pushed function: Button_5
        function Button_5Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='5';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'5');
            end
        end

        % Button pushed function: Button_6
        function Button_6Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='6';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'6');
            end
        end

        % Button pushed function: Button_7
        function Button_7Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='7';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'7');
            end
        end

        % Button pushed function: Button_8
        function Button_8Pushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='8';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'8');
            end
        end

        % Button pushed function: Button_9
        function Button_9Pushed(app, event)
           numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='9';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'9');
            end
        end

        % Button pushed function: Button_pi
        function Button_piPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='pi';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'pi');
            end
        end

        % Button pushed function: Button_point
        function Button_pointPushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'.');
        end

        % Button pushed function: Button_add
        function Button_addPushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'+');
        end

        % Button pushed function: Button_subtract
        function Button_subtractPushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'-');
        end

        % Button pushed function: Button_multiply
        function Button_multiplyPushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'*');
        end

        % Button pushed function: Button_devide
        function Button_devidePushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'/');
        end

        % Button pushed function: Button_left_bracket
        function Button_left_bracketPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            if(numbers_mat=='0')
                app.inputTextArea.Value='(';
            else
                app.inputTextArea.Value=strcat(app.inputTextArea.Value,'(');
            end
        end

        % Button pushed function: Button_right_bracket
        function Button_right_bracketPushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,')');
        end

        % Button pushed function: Button_equal
        function Button_equalPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            x=mat2str(numbers_mat);
            y1=eval(numbers_mat); 
            y=sprintf('%.10f',y1); 
            app.ResultsTextArea.Value=y;
            app.inputTextArea.Value='0';
        end

        % Button pushed function: CEButton
        function CEButtonPushed(app, event)
            app.inputTextArea.Value='0';
        end

        % Button pushed function: Button_plus_or_minus
        function Button_plus_or_minusPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            numbers_mat_2=strcat('0-',numbers_mat);
            y1=eval(numbers_mat_2); 
            y=sprintf('%.10f',y1); 
            app.ResultsTextArea.Value=y;
            app.inputTextArea.Value='0';
        end

        % Button pushed function: Button_per_cent
        function Button_per_centPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            numbers_mat_2=strcat('100*',numbers_mat);
            y1=eval(numbers_mat_2); 
            y=sprintf('%.10f',y1); 
            app.ResultsTextArea.Value=strcat(y,'%');
            app.inputTextArea.Value='0';
        end

        % Button pushed function: lgButton
        function lgButtonPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            numbers_mat_2=strcat('log10(',numbers_mat,')');
            y1=eval(numbers_mat_2); 
            y=sprintf('%.10f',y1); 
            app.ResultsTextArea.Value=y;
            app.inputTextArea.Value='0';
        end

        % Button pushed function: sqrtButton
        function sqrtButtonPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            numbers_mat_2=strcat('sqrt(',numbers_mat,')');
            y1=eval(numbers_mat_2); 
            y=sprintf('%.10f',y1); 
            app.ResultsTextArea.Value=y;
            app.inputTextArea.Value='0';
        end

        % Button pushed function: nButton
        function nButtonPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            x=str2double(numbers_mat);
            numbers_mat_2=factorial(x);
            %y1=eval(numbers_mat_2); 
            y=sprintf('%.10f',numbers_mat_2); 
            app.ResultsTextArea.Value=y;
            app.inputTextArea.Value='0';
        end

        % Button pushed function: DeleteButton
        function DeleteButtonPushed(app, event)
            numbers_mat=cell2mat(app.inputTextArea.Value);
            numbers_mat(end)=[];
            numbers_mat_2=strip(numbers_mat,'right');
            app.inputTextArea.Value=numbers_mat_2;
        end

        % Button pushed function: x_yButton
        function x_yButtonPushed(app, event)
            app.inputTextArea.Value=strcat(app.inputTextArea.Value,'.^');
        end
    end

 

实现界面：

 

 

参考文献：

https://wenku.baidu.com/view/2b3e8644f41fb7360b4c2e3f5727a5e9846a27fa.html