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在做《Matlab面向对象编程》第七章取存款的GUI功能时，生成面板的时候没有报错，但是更改存取款数的值并按withdraw和deposit两个按钮没有反应，存款总数一直不变，感觉是callback函数没有起作用，能帮我看看哪里不对嘛？谢谢！/ P& _; l$ m2 Q* V9 L8 L B
- balance = 500;%总金额
- input = 0;%存取款数
- hfig = figure('pos',[100,100,300,300]);
- withdrawButton = uicontrol('parent',hfig,'string','withdraw',...
- 'pos',[60 28 60 28]);
- depositButton = uicontrol('parent',hfig,'string','deposit',...
- 'pos',[180 28 60 28]);
- inputBox = uicontrol('parent',hfig,'style','edit','pos',[60 85 180 28],...
- 'string',num2str(input),'Tag','inputBox');
- balanceBox = uicontrol('parent',hfig,'style','edit','pos',[180 142 60 28],...
- 'string',num2str(balance),'Tag','balanceBox');
- textBox = uicontrol('parent',hfig,'style','text','pos',[60 142 60 28],...
- 'string','balance');
- % set(withdrawButton,'callback',@(o,e)withdraw_callback(o,e));
- % set(depositButton,'callback',@(o,e)deposit_callback(o,e));
- withdrawButton.Callback=@withdraw_callback;
- depositButton.Callback=@deposit_callback;
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+ O) O; A6 T8 ~7 I6 x; o" }6 \- function withdraw_callback(o,e)
- hfig = get(o,'parent');%取款
- inputBox = findobj(hfig,'Tag','inputbox');
- input = str2double(get(inputBox,'string'));
- balanceBox = findobj(hfig,'Tag','balancebox');
- balance = str2double(get(balanceBox,'string'));
- balance = balance - input;
- set(balanceBox,'string',num2str(balance));
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9 ^+ K* Z+ U% g0 Y5 e: @- function deposit_callback(o,e)
- hfig = get(o,'parent');%存款
- inputBox = findobj(hfig,'Tag','inputbox');
- input = str2double(get(inputBox,'string'));
- balanceBox = findobj(hfig,'Tag','balancebox');
- balance = str2double(get(balanceBox,'string'));
- balance = balance + input;
- set(balanceBox,'string',num2str(balance));
- end
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发表于 2020-9-21 16:03
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支持！
反对！
楼主
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