|
|
EDA365欢迎您登录！
您需要 登录 才可以下载或查看，没有帐号？注册
x
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！+ t3 a9 T6 n# s; x+ _: F: X
- 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;! ~2 I4 O1 C; e
% K/ { d5 i+ O1 U- B& d; y" ?: a$ G$ Z4 B, }/ @
! i7 A/ p1 a0 E/ K8 W" ]2 A- 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));
- end
' N) w A+ e' f' X7 S
/ w8 N8 k# ]/ y. e
5 F) p+ B5 l5 C+ \/ V) N1 C! K- d) g8 f
- 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* r- H! |* v* u2 f' r: d
3 E, @5 }% @* m! I5 O# G+ h1 \9 \/ V5 p
) E6 m. J7 v& a a6 M# W0 C3 b# e* S/ i4 m: |- X5 R0 W- ]
|
|
/1 
发表于 2020-9-21 16:03
收藏
淘帖
支持！
反对！
楼主