1 簡介

信息技術(shù)正在逐步深入,廣泛的應用到教育管理中,在技術(shù)上管理信息系統(tǒng)的實施已逐步成熟.要發(fā)展學校信息系統(tǒng),要高效率地有機地組織內(nèi)部信息,尤其是進行深化,細致的分析成績信息,就必須根據(jù)自身特點建立相適應的學生成績管理統(tǒng)計,分析系統(tǒng).本系統(tǒng)采用"自上而下地總體規(guī)劃,自下而上地應用開發(fā)"的策略,介紹了在matlab境下開發(fā)一個管理信息系統(tǒng)的過程.創(chuàng)建了一套行之有效的計算機管理學生成績的方案.

2 部分代碼

function varargout = chengji(varargin)gui_Singleton = 1;gui_State = struct('gui_Name', ? ? ? mfilename, ... ? ? ? ? ? ? ? ? ? 'gui_Singleton', ?gui_Singleton, ... ? ? ? ? ? ? ? ? ? 'gui_OpeningFcn', @chengji_OpeningFcn, ... ? ? ? ? ? ? ? ? ? 'gui_OutputFcn', ?@chengji_OutputFcn, ... ? ? ? ? ? ? ? ? ? 'gui_LayoutFcn', ?[] , ... ? ? ? ? ? ? ? ? ? 'gui_Callback', ? []);if nargin && ischar(varargin{1}) ? ?gui_State.gui_Callback = str2func(varargin{1});endif nargout ? ?[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});else ? ?gui_mainfcn(gui_State, varargin{:});end% End initialization code - DO NOT EDIT% --- Executes just before chengji is made visible.function chengji_OpeningFcn(hObject, eventdata, handles, varargin)handles.output = hObject;Hc_grid=uicontrol(gcf,'style','toggle','string','Grid','position',[650 165 60 29],'callback','grid');%在圖形窗口畫網(wǎng)格線guidata(hObject, handles);function varargout = chengji_OutputFcn(hObject, eventdata, handles) varargout{1} = handles.output;% --- Executes on selection change in listbox1.function listbox1_Callback(hObject, eventdata, handles)value=get(hObject,'value')-1;if(value==0) ?set(handles.edit1,'string','please choose a name'); %顯示成績 elseset(handles.edit1,'string',num2str(handles.chengji(value,:)));%確保edit1中是數(shù)字end% --- Executes during object creation, after setting all properties.function listbox1_CreateFcn(hObject, eventdata, handles)if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) ? ?set(hObject,'BackgroundColor','white');endfunction edit1_Callback(hObject, eventdata, handles)function edit1_CreateFcn(hObject, eventdata, handles)if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) ? ?set(hObject,'BackgroundColor','white');endfunction edit2_Callback(hObject, eventdata, handles)function edit2_CreateFcn(hObject, eventdata, handles)if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) ? ?set(hObject,'BackgroundColor','white');end% --- Executes on button press in pushbutton1.function pushbutton1_Callback(hObject, eventdata, handles)[FileName PathName]=uigetfile({'*.xls','Excel Files(*.xls)';'*.txt','Text Files(*.txt)';'*.*','All Files(*.*)'},'Choose a file');%uigetfile用來選擇讀入的文件L=length(FileName);if(L<5) ? ?errordlg('請選擇正確文件','File Open Error');%建立一個默認參數(shù)的錯誤對話框 ? ?return;endtest=FileName(1,end-3:end);%定義一個變量test用于文件類型的確定str=[PathName FileName];set(handles.edit2,'string',str);%使打來的文件路徑和文件名顯示在edit2global len;global ave1;global ave2;global ave3;global d1;global d2;global d3;switch test ? ?case '.txt' %當文件為記事本時 ? ?fin=fopen('chengji.txt','r'); ? ?str=fgetl(fin);%按行從文件中讀取數(shù)據(jù)，但不讀取換行符 ? ?[str1 str2 str3 str4]=strread(str,'%s %s %s %s','delimiter',' ');%delimiter用于指定分隔符；%s：輸出字符串 ? ?xingming(1)=str1;%就是單詞name ? ?counter=2; ? ?h=waitbar(0,'please wait a moment,reading the file now ............'); ? ?for i=1:100, ? ? ? ?waitbar(i/100,'h',[num2str(i),'%'])%顯示百分比 ? ? ? ?pause(.1) ? ?end ? ?while feof(fin)==0 ?%feof判斷是否為文件結(jié)尾 ? ? ? ? ?str=fgetl(fin); ? ? ? ? ?[name chinese math english]=strread(str,'%s %d %d %d','delimiter',' ?');% %d用于輸出十進制數(shù) ? ? ? ? ?xingming(counter)=name;%讀取學生姓名 ? ? ? ? ?chengji(counter-1,:)=[chinese math english];%定義一個成績的矩陣用于儲存成績 ? ? ? ? ?counter=counter+1; ? ? ? ? ?waitbar(counter/(counter+1),h,'On working......'); ? ?end ? ?waitbar(1,h,'Finished'); ? ?delete(h);%讀取數(shù)據(jù)完成后釋放h對象 ? ?set(handles.listbox1,'string',xingming); ? ?handles.chengji=chengji; ? ? ? ?len=length(chengji);%求矩陣的長度 ? ?d1=chengji(1:len,1); ? ?ave1=sum(d1);%求語文的總分 ? ?d2=chengji(1:len,2); ? ?ave2=sum(d2);%求數(shù)學的總分 ? ?d3=chengji(1:len,3); ? ?ave3=sum(d3);%求英語的總分 ? ?fclose(fin); ? ?%當文件格式為表格時 ? ?case '.xls' %當文件為表格時 ? ?h=waitbar(0,'please wait a moment');%創(chuàng)建一個進度條 ? ?for i=1:100, ? ? ? ?waitbar(i/100,h,[num2str(i),'%'])%顯示百分比 ? ? ? ?pause(.1) ? ?end ? ?waitbar(1,h,'Finished'); ? ?delete(h); ? ?[chengji xingming]=xlsread(str); ? ?set(handles.listbox1,'string',xingming(:,1)); ? ?handles.chengji=chengji; ? ?len=length(chengji);%求矩陣的長度 ? ?d1=chengji(1:len,1); ? ?ave1=sum(d1);%求語文的總分 ? ?d2=chengji(1:len,2); ? ?ave2=sum(d2);%求數(shù)學的總分 ? ?d3=chengji(1:len,3); ? ?ave3=sum(d3);%求英語的總分 ? ?otherwise ? ? ? ?errordlg('Wrong File','File Open Error'); ? ? ? ?returnend ?guidata(hObject,handles);% --- Executes on button press in pushbutton2.function pushbutton2_Callback(hObject, eventdata, handles)clc;clear all;close(gcf);function pushbutton1_CreateFcn(hObject, eventdata, handles)function popupmenu1_Callback(hObject, eventdata, handles)val=get(hObject,'Value');str=get(hObject,'String');global len;global d1;global d2;global d3;global d;global ave1;global ave2;global ave3;global ave;switch str{val} ? ? ? ?case 'chinese' ? ? ? ?d=d1; ? ? ? ?ave=ave1/len;%求語文的平均分 ? ?case ?'math' ? ? ? d=d2; ? ? ? ave=ave2/len;%求數(shù)學的平均分 ? ?case 'english' ? ? ? d=d3; ? ? ? ave=ave3/len;%求英語的平均分endguidata(hObject,handles);function popupmenu1_CreateFcn(hObject, eventdata, handles)if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) ? ?set(hObject,'BackgroundColor','white');end

3 仿真結(jié)果

4 參考文獻

[1]張穎. 學生成績統(tǒng)計,分析軟件的設計與實現(xiàn)[D]. 內(nèi)蒙古師范大學, 2011.

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