matlab实现简易计算器的作业项目源码.zip

classdef calculator_exported < matlab.apps.AppBase % Properties that correspond to app components properties (Access = public) UIFigure matlab.ui.Figure TextArea matlab.ui.control.TextArea Button matlab.ui.control.Button Button_2 matlab.ui.control.Button Button_3 matlab.ui.control.Button Button_4 matlab.ui.control.Button Button_5 matlab.ui.control.Button Button_6 matlab.ui.control.Button Button_7 matlab.ui.control.Button Button_8 matlab.ui.control.Button Button_9 matlab.ui.control.Button Button_10 matlab.ui.control.Button Button_11 matlab.ui.control.Button Button_12 matlab.ui.control.Button Button_13 matlab.ui.control.Button Button_14 matlab.ui.control.Button Button_15 matlab.ui.control.Button Button_16 matlab.ui.control.Button Button_17 matlab.ui.control.Button xButton matlab.ui.control.Button Button_21 matlab.ui.control.Button CButton matlab.ui.control.Button Button_18 matlab.ui.control.Button xButton_2 matlab.ui.control.Button Button_20 matlab.ui.control.Button end properties (Access = private) express_str = '' % the expression string ans = '' % the answer end % Callbacks that handle component events methods (Access = private) % Button pushed function: Button function Num_0Pushed(app, event) if strcmp(app.TextArea.Value,'0') else app.express_str = strcat(app.express_str,'0'); app.TextArea.Value = app.express_str; end end % Button pushed function: Button_3 function Num_1Pushed(app, event) app.express_str = strcat(app.express_str,'1'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_4 function Num_2Pushed(app, event) app.express_str = strcat(app.express_str,'2'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_5 function Num_3Pushed(app, event) app.express_str = strcat(app.express_str,'3'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_9 function Num_4Pushed(app, event) app.express_str = strcat(app.express_str,'4'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_8 function Num_5Pushed(app, event) app.express_str = strcat(app.express_str,'5'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_7 function Num_6Pushed(app, event) app.express_str = strcat(app.express_str,'6'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_12 function Num_7Pushed(app, event) app.express_str = strcat(app.express_str,'7'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_11 function Num_8Pushed(app, event) app.express_str = strcat(app.express_str,'8'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_10 function Num_9Pushed(app, event) app.express_str = strcat(app.express_str,'9'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_6 function Dot_Pushed(app, event) app.express_str = strcat(app.express_str,'.'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_20 function Lbracket_Pushed(app, event) app.express_str = strcat(app.express_str,'('); app.TextArea.Value = app.express_str; end % Button pushed function: Button_21 function Rbracket_Pushed(app, event) app.express_str = strcat(app.express_str,')'); app.TextArea.Value = app.express_str; end % Button pushed function: xButton function Squre_Pushed(app, event) app.express_str = strcat(app.express_str,'^2'); app.TextArea.Value = app.express_str; end % Button pushed function: CButton function Clear_Pushed(app, event) app.express_str = ''; app.TextArea.Value = '0'; end % Button pushed function: Button_18 function Delete_Pushed(app, event) tail = length(app.express_str); app.express_str = app.express_str(1,1:tail-1); app.TextArea.Value = app.express_str; end % Button pushed function: Button_13 function Divide_Pushed(app, event) app.express_str = strcat(app.express_str,'/'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_14 function Multip_Pushed(app, event) app.express_str = strcat(app.express_str,'*'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_15 function Sub_Pushed(app, event) app.express_str = strcat(app.express_str,'-'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_16 function Add_Pushed(app, event) app.express_str = strcat(app.express_str,'+'); app.TextArea.Value = app.express_str; end % Button pushed function: xButton_2 function Invert_Pushed(app, event) if length(app.express_str)>0 try result = eval(app.express_str); app.ans = num2str(1/result); app.express_str = app.ans; app.TextArea.Value = app.ans; catch app.express_str = ''; app.TextArea.Value = 'error'; end end end % Button pushed function: Button_17 function Pow_Pushed(app, event) app.express_str = strcat(app.express_str,'^'); app.TextArea.Value = app.express_str; end % Button pushed function: Button_2 function Equal_Pushed(app, event) if length(app.express_str)>0 try result = eval(app.express_str); app.ans = num2str(result); app.express_str = app.ans; app.TextArea.Value = app.ans; catch app.express_str = ''; app.TextArea.Value = 'error'; end end end end % Component initialization methods (Access = private) % Create UIFigure and components function createComponents(app) % Create UIFigure and hide until all components are created app.UIFigure = uifigure('Visible', 'off'); app.UIFigure.Position = [100 100 357 481]; app.UIFigure.Name = 'MATLAB App'; % Create TextArea app.TextArea = uitextarea(app.UIFigure); app.TextArea.Tag = 'result'; app.TextArea.Editable = 'off'; app.TextArea.HorizontalAlignment = 'right'; app.TextArea.FontSize = 24; app.TextArea.Position = [38 351 285 79]; app.TextArea.Value = {'0'}; % Create Button app.Button = uibutton(app.UIFigure, 'push'); app.Button.ButtonPushedFcn = createCallbackFcn(app, @Num_0Pushed, true); app.Button.Tag = '0'; app.Button.FontSize = 24; app.Button.Position = [38 63 100 42];