?? prev_next_callback.m
字號:
function varargout = Prev_Next_Callback(h, eventdata, handles, str)
%獲取索引指針和地址
index = handles.Index;
Addresses = handles.Addresses;
%根據(jù)被單擊的按鈕修改顯示結(jié)果
switch str
case 'Prev'
%索引值減1
i = index - 1;
%如果索引值小于1,設(shè)置其為Addresses數(shù)組最后一個元素的索引
if i < 1
i = length(Addresses);
end
case 'Next'
%索引值增加1
i = index + 1;
%如果索引值超出范圍,設(shè)置其為Addresses數(shù)組第一個元素的索引
if i > length(Addresses)
i = 1;
end
end
%為被選索引獲取相應(yīng)數(shù)據(jù)
Current_Name = Addresses(i).Name;
Current_Phone = Addresses(i).Phone;
set(handles.Contact_Name,'string',Current_Name)
set(handles.Contact_Phone,'string',Current_Phone)
%刷新索引指針以反映新的索引
handles.Index = i;
guidata(h,handles)
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