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5 a1 C& F: A3 D& V3 D
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 openingFcn执行于窗口可见之前,这个时候你想做什么的话可以把代码写进去
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 function plott_OpeningFcn(hObject, eventdata, handles, varargin)t=1/200:1/200:1;plot(t,sin(2*pi*t*10),'r');8 [; ~, k* K) s: f9 b# I, b0 M5 Z9 G
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 function Grid_off_Callback(hObject, eventdata, handles)grid off;function Grid_on_Callback(hObject, eventdata, handles)grid on;function About_Callback(hObject, eventdata, handles)helpdlg('This is an example ','About')function Close_Callback(hObject, eventdata, handles)cla;%清除坐标轴delete(handles.figure1);%关闭图形窗口9 `! L/ L8 V& @1 x/ h4 v
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 L& A$ x. _0 r2 t) U! b0 Jfunction Plot_Callback(hObject, eventdata, handles)t=1/200:1/200:1;plot(t,sin(2*pi*t*10),'r');% --------------------------------------------------------------------function grid_on_Callback(hObject, eventdata, handles)grid on;% --------------------------------------------------------------------function grid_off_Callback(hObject, eventdata, handles)grid off;% --------------------------------------------------------------------function Clear_Callback(hObject, eventdata, handles)cla;% N% _  m6 v9 F' X
 
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