MATLAB App Designer 计算器的设计 |
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MATLAB App Designer 计算器的设计
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作者初涉App设计，看到有前人写了guide版的计算器，所以萌生想法，想用App Designer来设计一个计算器。 有纰漏请指出，转载请说明。 学习交流请发邮件 [email protected] 一、效果展示开启时显示当前时间 点击“历史”按钮时可显示历史输入值
创建全局变量 properties (Access = private) str % the string of the expression ans % the answer his='' end启动时显示当前时间 function startupFcn(app) formatOut = 'HH:MM:SS'; app.monitor.Text=datestr(datetime("now"),formatOut); end把按键相应的字符添加到str中，+-*/ 同理 function btn1Pushed(app, event) app.str=strcat(app.str,'1'); app.monitor.Text=app.str; end“=”按钮，将str添加到history中，判断str是否为空，不为空，则进行计算 function btnEquButtonPushed(app, event) app.his = append(app.his,' ',app.str) if length(app.str) ~= 0 app.ans=eval(app.str); app.ans=num2str(app.ans) app.monitor.Text=app.ans; app.str=app.ans; end end清空按钮 function clearButtonPushed(app, event) app.str=''; app.his=''; app.monitor.Text=app.str; end退出 function exitButtonPushed(app, event) delete(app.UIFigure); end历史输入 function historyButtonPushed(app, event) app.monitor.Text=app.his; end 三、完整代码 classdef app1 < matlab.apps.AppBase % Properties that correspond to app components properties (Access = public) UIFigure matlab.ui.Figure Toolbar matlab.ui.container.Toolbar PushTool matlab.ui.container.toolbar.PushTool history matlab.ui.control.Button exit matlab.ui.control.Button clear matlab.ui.control.Button backspace matlab.ui.control.Button btnDiv matlab.ui.control.Button btnMul matlab.ui.control.Button btnSub matlab.ui.control.Button btnPlus matlab.ui.control.Button btnEqu matlab.ui.control.Button point matlab.ui.control.Button btn0 matlab.ui.control.Button btn3 matlab.ui.control.Button btn2 matlab.ui.control.Button btn1 matlab.ui.control.Button btn6 matlab.ui.control.Button btn5 matlab.ui.control.Button btn4 matlab.ui.control.Button btn9 matlab.ui.control.Button btn8 matlab.ui.control.Button btn7 matlab.ui.control.Button monitor matlab.ui.control.Label end properties (Access = private) str % the string of the expression ans % the answer his='' end % Callbacks that handle component events methods (Access = private) % Code that executes after component creation function startupFcn(app) formatOut = 'HH:MM:SS'; app.monitor.Text=datestr(datetime("now"),formatOut); end % Callback function: UIFigure, btn1 function btn1Pushed(app, event) app.str=strcat(app.str,'1'); app.monitor.Text=app.str; end % Button pushed function: btn2 function btn2ButtonPushed(app, event) app.str=strcat(app.str,'2'); app.monitor.Text=app.str; end % Button pushed function: btnEqu function btnEquButtonPushed(app, event) app.his = append(app.his,' ',app.str) if length(app.str) ~= 0 app.ans=eval(app.str); app.ans=num2str(app.ans) app.monitor.Text=app.ans; app.str=app.ans; end end % Button pushed function: btnPlus function btnPlusButtonPushed(app, event) app.str=strcat(app.str,'+'); app.monitor.Text=app.str; end % Button pushed function: btn3 function btn3ButtonPushed(app, event) app.str=strcat(app.str,'3'); app.monitor.Text=app.str; end % Button pushed function: btn4 function btn4ButtonPushed(app, event) app.str=strcat(app.str,'4'); app.monitor.Text=app.str; end % Button pushed function: btn5 function btn5ButtonPushed(app, event) app.str=strcat(app.str,'5'); app.monitor.Text=app.str; end % Button pushed function: btn6 function btn6ButtonPushed(app, event) app.str=strcat(app.str,'6'); app.monitor.Text=app.str; end % Button pushed function: btn7 function btn7ButtonPushed(app, event) app.str=strcat(app.str,'7'); app.monitor.Text=app.str; end % Button pushed function: btn8 function btn8ButtonPushed(app, event) app.str=strcat(app.str,'8'); app.monitor.Text=app.str; end % Button pushed function: btn9 function btn9ButtonPushed(app, event) app.str=strcat(app.str,'9'); app.monitor.Text=app.str; end % Button pushed function: btn0 function btn0ButtonPushed(app, event) app.str=strcat(app.str,'0'); app.monitor.Text=app.str; end % Button pushed function: point function pointButtonPushed(app, event) app.str=strcat(app.str,'.'); app.monitor.Text=app.str; end % Button pushed function: btnSub function btnSubButtonPushed(app, event) app.str=strcat(app.str,'-'); app.monitor.Text=app.str; end % Button pushed function: btnMul function btnMulButtonPushed(app, event) app.str=strcat(app.str,'*'); app.monitor.Text=app.str; end % Button pushed function: btnDiv function btnDivButtonPushed(app, event) app.str=strcat(app.str,'/'); app.monitor.Text=app.str; end % Button pushed function: backspace function backspaceButtonPushed(app, event) L=length(app.str); app.str(L)=''; app.monitor.Text=app.str; end % Button pushed function: clear function clearButtonPushed(app, event) app.str=''; app.his=''; app.monitor.Text=app.str; end % Callback function function remButtonPushed(app, event) end % Button pushed function: exit function exitButtonPushed(app, event) delete(app.UIFigure); end % Button pushed function: history function historyButtonPushed(app, event) app.monitor.Text=app.his; 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 = [100 100 429 508]; app.UIFigure.Name = 'MATLAB App'; app.UIFigure.ButtonDownFcn = createCallbackFcn(app, @btn1Pushed, true); % Create Toolbar app.Toolbar = uitoolbar(app.UIFigure); % Create PushTool app.PushTool = uipushtool(app.Toolbar); % Create monitor app.monitor = uilabel(app.UIFigure); app.monitor.Tag = 'monitor'; app.monitor.BackgroundColor = [0.502 0.502 0.502]; app.monitor.HorizontalAlignment = 'right'; app.monitor.WordWrap = 'on'; app.monitor.FontSize = 35; app.monitor.Position = [54 387 290 122]; app.monitor.Text = ''; % Create btn7 app.btn7 = uibutton(app.UIFigure, 'push'); app.btn7.ButtonPushedFcn = createCallbackFcn(app, @btn7ButtonPushed, true); app.btn7.Tag = 'btn7'; app.btn7.BackgroundColor = [0.902 0.902 0.902]; app.btn7.FontSize = 25; app.btn7.FontWeight = 'bold'; app.btn7.Position = [55 300 50 50]; app.btn7.Text = '7'; % Create btn8 app.btn8 = uibutton(app.UIFigure, 'push'); app.btn8.ButtonPushedFcn = createCallbackFcn(app, @btn8ButtonPushed, true); app.btn8.Tag = 'btn8'; app.btn8.BackgroundColor = [0.902 0.902 0.902]; app.btn8.FontSize = 25; app.btn8.FontWeight = 'bold'; app.btn8.Position = [135 300 50 50]; app.btn8.Text = '8'; % Create btn9 app.btn9 = uibutton(app.UIFigure, 'push'); app.btn9.ButtonPushedFcn = createCallbackFcn(app, @btn9ButtonPushed, true); app.btn9.Tag = 'btn9'; app.btn9.BackgroundColor = [0.902 0.902 0.902]; app.btn9.FontSize = 25; app.btn9.FontWeight = 'bold'; app.btn9.Position = [215 300 50 50]; app.btn9.Text = '9'; % Create btn4 app.btn4 = uibutton(app.UIFigure, 'push'); app.btn4.ButtonPushedFcn = createCallbackFcn(app, @btn4ButtonPushed, true); app.btn4.Tag = 'btn4'; app.btn4.BackgroundColor = [0.902 0.902 0.902]; app.btn4.FontSize = 25; app.btn4.FontWeight = 'bold'; app.btn4.Position = [55 230 50 50]; app.btn4.Text = '4'; % Create btn5 app.btn5 = uibutton(app.UIFigure, 'push'); app.btn5.ButtonPushedFcn = createCallbackFcn(app, @btn5ButtonPushed, true); app.btn5.Tag = 'btn5'; app.btn5.BackgroundColor = [0.902 0.902 0.902]; app.btn5.FontSize = 25; app.btn5.FontWeight = 'bold'; app.btn5.Position = [135 230 50 50]; app.btn5.Text = '5'; % Create btn6 app.btn6 = uibutton(app.UIFigure, 'push'); app.btn6.ButtonPushedFcn = createCallbackFcn(app, @btn6ButtonPushed, true); app.btn6.Tag = 'btn6'; app.btn6.BackgroundColor = [0.902 0.902 0.902]; app.btn6.FontSize = 25; app.btn6.FontWeight = 'bold'; app.btn6.Position = [215 230 50 50]; app.btn6.Text = '6'; % Create btn1 app.btn1 = uibutton(app.UIFigure, 'push'); app.btn1.ButtonPushedFcn = createCallbackFcn(app, @btn1Pushed, true); app.btn1.Tag = 'btn1'; app.btn1.BackgroundColor = [0.902 0.902 0.902]; app.btn1.FontSize = 25; app.btn1.FontWeight = 'bold'; app.btn1.Position = [55 160 50 50]; app.btn1.Text = '1'; % Create btn2 app.btn2 = uibutton(app.UIFigure, 'push'); app.btn2.ButtonPushedFcn = createCallbackFcn(app, @btn2ButtonPushed, true); app.btn2.Tag = 'btn2'; app.btn2.BackgroundColor = [0.902 0.902 0.902]; app.btn2.FontSize = 25; app.btn2.FontWeight = 'bold'; app.btn2.Position = [135 160 50 50]; app.btn2.Text = '2'; % Create btn3 app.btn3 = uibutton(app.UIFigure, 'push'); app.btn3.ButtonPushedFcn = createCallbackFcn(app, @btn3ButtonPushed, true); app.btn3.Tag = 'btn3'; app.btn3.BackgroundColor = [0.902 0.902 0.902]; app.btn3.FontSize = 25; app.btn3.FontWeight = 'bold'; app.btn3.Position = [215 160 50 50]; app.btn3.Text = '3'; % Create btn0 app.btn0 = uibutton(app.UIFigure, 'push'); app.btn0.ButtonPushedFcn = createCallbackFcn(app, @btn0ButtonPushed, true); app.btn0.Tag = 'btn0'; app.btn0.FontSize = 25; app.btn0.FontWeight = 'bold'; app.btn0.Position = [55 90 50 50]; app.btn0.Text = '0'; % Create point app.point = uibutton(app.UIFigure, 'push'); app.point.ButtonPushedFcn = createCallbackFcn(app, @pointButtonPushed, true); app.point.Tag = 'btnClear'; app.point.FontSize = 25; app.point.FontWeight = 'bold'; app.point.Position = [135 90 50 50]; app.point.Text = '.'; % Create btnEqu app.btnEqu = uibutton(app.UIFigure, 'push'); app.btnEqu.ButtonPushedFcn = createCallbackFcn(app, @btnEquButtonPushed, true); app.btnEqu.Tag = 'btnEqu'; app.btnEqu.FontSize = 25; app.btnEqu.FontWeight = 'bold'; app.btnEqu.Position = [215 90 50 50]; app.btnEqu.Text = '='; % Create btnPlus app.btnPlus = uibutton(app.UIFigure, 'push'); app.btnPlus.ButtonPushedFcn = createCallbackFcn(app, @btnPlusButtonPushed, true); app.btnPlus.Tag = 'btnPlus'; app.btnPlus.FontSize = 25; app.btnPlus.FontWeight = 'bold'; app.btnPlus.Position = [295 300 50 50]; app.btnPlus.Text = '+'; % Create btnSub app.btnSub = uibutton(app.UIFigure, 'push'); app.btnSub.ButtonPushedFcn = createCallbackFcn(app, @btnSubButtonPushed, true); app.btnSub.Tag = 'btnSub'; app.btnSub.FontSize = 25; app.btnSub.FontWeight = 'bold'; app.btnSub.Position = [295 230 50 50]; app.btnSub.Text = '-'; % Create btnMul app.btnMul = uibutton(app.UIFigure, 'push'); app.btnMul.ButtonPushedFcn = createCallbackFcn(app, @btnMulButtonPushed, true); app.btnMul.Tag = 'btnMul'; app.btnMul.FontSize = 25; app.btnMul.FontWeight = 'bold'; app.btnMul.Position = [295 160 50 50]; app.btnMul.Text = '*'; % Create btnDiv app.btnDiv = uibutton(app.UIFigure, 'push'); app.btnDiv.ButtonPushedFcn = createCallbackFcn(app, @btnDivButtonPushed, true); app.btnDiv.Tag = 'btnDiv'; app.btnDiv.FontSize = 25; app.btnDiv.FontWeight = 'bold'; app.btnDiv.Position = [295 90 50 50]; app.btnDiv.Text = '/'; % Create backspace app.backspace = uibutton(app.UIFigure, 'push'); app.backspace.ButtonPushedFcn = createCallbackFcn(app, @backspaceButtonPushed, true); app.backspace.Tag = 'btn0'; app.backspace.FontSize = 25; app.backspace.FontWeight = 'bold'; app.backspace.Position = [215 19 51 50]; app.backspace.Text = '←'; % Create clear app.clear = uibutton(app.UIFigure, 'push'); app.clear.ButtonPushedFcn = createCallbackFcn(app, @clearButtonPushed, true); app.clear.Tag = 'btnClear'; app.clear.FontSize = 25; app.clear.FontWeight = 'bold'; app.clear.Position = [295 19 50 50]; app.clear.Text = 'C'; % Create exit app.exit = uibutton(app.UIFigure, 'push'); app.exit.ButtonPushedFcn = createCallbackFcn(app, @exitButtonPushed, true); app.exit.Tag = 'btnDiv'; app.exit.BackgroundColor = [0.502 0.502 0.502]; app.exit.FontSize = 20; app.exit.FontWeight = 'bold'; app.exit.Position = [56 19 49 50]; app.exit.Text = 'exit'; % Create history app.history = uibutton(app.UIFigure, 'push'); app.history.ButtonPushedFcn = createCallbackFcn(app, @historyButtonPushed, true); app.history.Tag = 'btnClear'; app.history.FontSize = 20; app.history.FontWeight = 'bold'; app.history.Position = [135 19 50 50]; app.history.Text = '历史'; % Show the figure after all components are created app.UIFigure.Visible = 'on'; end end % App creation and deletion methods (Access = public) % Construct app function app = app1 % Create UIFigure and components createComponents(app) % Register the app with App Designer registerApp(app, app.UIFigure) % Execute the startup function runStartupFcn(app, @startupFcn) if nargout == 0 clear app end end % Code that executes before app deletion function delete(app) % Delete UIFigure when app is deleted delete(app.UIFigure) end end end
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