h_main=figure(‘name’,‘a demo of gui design’,‘menubar’,‘none’,…

'numbertitle','off','position',[100 100 300 100]);

h_edit=uicontrol('style','edit','backgroundcolor',[1 1 1],'position',[20 20 50 20],...

'tag','myedit','string','1','horizontalalignment','left');

h_but1=uicontrol('style','pushbutton','position',[20 50 50 20],'string','INC',...

'callback',['v=eval(get(h_edit,''string''));',...

'set(h_edit,''string'',int2str(v+1));']);

h_but2=uicontrol('style','pushbutton','position',[80 50 50 20],'string','DEC',...

'callback',['v=eval(get(h_edit,''string''));','set(h_edit,''string'',int2str(v-1));']);
 

注意：价格根据项目的难易程度来定价格。