Question

matlab gui 实现对输入数据的计算，输入包括4个edit text和1个popupmenu

计算按钮的代码

function pushbutton1_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
%计算按钮回调函数
%参数定义
rou=610;g=9.8;
pg=str2double(get(handles.edit2,'String'));
p0=str2double(get(handles.edit3,'String'));
h0=str2double(get(handles.edit7,'String'));
A=str2double(get(handles.edit8,'String'));
C0=str2double(get(handles.popupmenu2_Value,'String'));
%计算公式
Q=rou*C0*A*(2*((pg-p0)/rou+g*h0))^(1/2);
QQQ = num2str(Q);
set(handles.edit9,'String','泄漏速率为：',QQQ,'kg/s');
guidata(hObject,handles);
纯小白 求大神指点哪里有错误！！！感激不尽

Answer 1

报什么错误了？？看着似乎没什么问题
不过
set(handles.edit9,'String','泄漏速率为：',QQQ,'kg/s');
这一句最好把string先准备好
str = ['泄漏速率为：',QQQ,'kg/s'];
set(handles.edit9,'String',str);
否则可能参数会有点问题啊