matlab实现GUI界面的学生成绩管理系统的删除与修改代码

以下是一个简单的 MATLAB GUI 界面的学生成绩管理系统的删除与修改代码的示例：

删除代码：

function delete_button_Callback(hObject, eventdata, handles)
% hObject    handle to delete_button (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get index of selected row
selected_row = get(handles.grade_table, 'UserData');
if isempty(selected_row)
    errordlg('Please select a row to delete.', 'Error');
    return;
end

% Delete row from table data
table_data = get(handles.grade_table, 'Data');
table_data(selected_row,:) = [];
set(handles.grade_table, 'Data', table_data);

% Clear selection
set(handles.grade_table, 'UserData', []);

修改代码：

function edit_button_Callback(hObject, eventdata, handles)
% hObject    handle to edit_button (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get index of selected row
selected_row = get(handles.grade_table, 'UserData');
if isempty(selected_row)
    errordlg('Please select a row to edit.', 'Error');
    return;
end

% Open dialog box to edit data
table_data = get(handles.grade_table, 'Data');
[row, col] = size(table_data);
prompt = cell(1, col);
for i = 1:col
    prompt{i} = sprintf('Enter new value for %s:', table_data{1,i});
end
title = 'Edit Grade';
dims = [1 50];
definput = cell(1, col);
for i = 1:col
    definput{i} = table_data{selected_row,i};
end
new_data = inputdlg(prompt, title, dims, definput);
if isempty(new_data)
    return;
end

% Update table data
for i = 1:col
    table_data{selected_row,i} = new_data{i};
end
set(handles.grade_table, 'Data', table_data);

% Clear selection
set(handles.grade_table, 'UserData', []);

需要注意的是，这两个回调函数需要与 MATLAB GUI 界面中的按钮进行绑定。在 MATLAB 的 GUIDE 工具中，可以通过双击按钮来打开回调函数的编辑界面，并将以上代码粘贴到回调函数中。