为啥GUI的callback函数不起作用了呢？

qUzalq

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！

• 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;
  

8 J! h& A0 ?$ L

• 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
  # O4 ^1 c4 N) M

0 i* c( Q! U; J( a

! l* f3 s0 x4 @

• 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
  

regngfpcb

看不完你的帖子

mutougeda

withdraw_callback函数里面inputbox和balancebox中得b都小写了，改为大写的；deposit_callback函数中的也一样

qUzalq

mutougeda 发表于 2020-9-21 18:52
* E! N/ n) S" z0 X* bwithdraw_callback函数里面inputbox和balancebox中得b都小写了，改为大写的；deposit_callback函数中的也一 ...

原来是这样，我也是刚刚发现的
6 F% A+ p/ x* Z& M/ y" E9 Z