c++学生管理系统.doc

/ Student.cpp : Defines the entry point for the console application./#include stdafx.h#include console.h#include student.h#include studentui.hCStudentUI theUI;CStudentFile theFile(student.dat);/ 定义命令函数void DoAddRec(void);void DoDelRec(void);void DoListAllRec(void);void DoFindRec(void);void main()const int nItemNum = 7;char *strItemnItemNum = Add a student data record, Delete a student data record,-, List all data records, Find a student data record,-,Exit ;theUI._SetOptionsTitle( Main Menu );for (;) int nIndex = theUI._GetOptions(strItem,0,0,nItemNum);switch(nIndex)case 0:/ Add a student data recordDoAddRec();break;case 1:/ Delete a student data recordDoDelRec();break;case 2:/ List all data recordsDoListAllRec();break;case 3:/ Find a student data recordDoFindRec();break;break;case 4:/ Exitreturn;void DoAddRec(void)CStudentRec rec;if ( theUI.InputStuRec( rec ) ) theFile.Add( rec );DoListAllRec();void DoDelRec(void)CStudentRec rec;char strID80, str80= No find the record of ;strcpy(strID, theUI._InputBox( Input Deleted Student ID , 0, 0 );if (strID) int nIndex = theFile.Seek( strID, rec );if (nIndex=0) theFile.Delete( strID );DoListAllRec(); else strcat( str, strID );strcat( str, ! );theUI._MessageBox( Notice , str, 1 );void DoListAllRec(void)int nCount = theFile.GetRecCount();CStudentRec *stu;stu = new CStudentRecnCount;theFile.GetStuRec( stu );theUI.DispStuRecs( stu, nCount );delete nCountstu;void DoFindRec(void)CStudentRec rec;char strID80, str80= No find the record of ;strcpy(strID, theUI._InputBox( Input Finded Student ID , 0, 0 );if (strID) int nIndex = theFile.Seek( strID, rec );if (nIndex=0)theUI.DispStuRecs( &rec, 1 );else strcat( str, strID );strcat( str, ! );theUI._MessageBox( Notice , str, 1 );#include #include #include #include class CStudentRecpublic:CStudentRec()chFlag = N;/ 默认构造函数CStudentRec();/ 默认析构函数friendostream& operator ( istream& is, CStudentRec& stu );CStudentRec& operator = (CStudentRec &stu)/ 赋值运算符重载strncpy(strName, stu.strName, 20);strncpy(strID, stu.strID, 10);for (int i=0; i3; i+)fScorei = stu.fScorei;fAve = stu.fAve;chFlag = stu.chFlag;return *this;charchFlag;/ 标志,A表示正常，N表示空charstrName20;/ 姓名charstrID10;/ 学号floatfScore3;/ 三门成绩floatfAve;/ 总平均分;/ CStudentRec类的实现ostream& operator ( istream& is, CStudentRec& stu )char name20,id10;is.read(&stu.chFlag, sizeof(char);is.read(name, sizeof(name);is.read(id, sizeof(id);is.read(char*)stu.fScore, sizeof(float)*3);is.read(char*)&stu.fAve, sizeof(float);strncpy(stu.strName, name, sizeof(name);strncpy(stu.strID, id, sizeof(id);return is;class CStudentFilepublic:CStudentFile(char* filename);CStudentFile();voidAdd(CStudentRec stu);/ 添加记录voidDelete(char* id);/ 删除学号为id的记录voidUpdate(int nRec, CStudentRec stu);/ 更新记录号为nRec的内容，nRec从0开始 intSeek(char* id, CStudentRec &stu);/ 按学号查找, 返回记录号，-1表示没有找到 intGetRecCount(void);/ 获取文件中的记录数intGetStuRec( CStudentRec* data );/ 获取所有记录,返回记录数private:char*strFileName;/ 文件名;/ CStudentFile类的实现CStudentFile:CStudentFile(char* filename)strFileName = new charstrlen(filename)+1;strcpy(strFileName, filename);CStudentFile:CStudentFile()if (strFileName) delete strFileName;void CStudentFile:Add(CStudentRec stu)/ 打开文件用于添加fstream file(strFileName, ios:out|ios:app|ios:binary );filestu;file.close();void CStudentFile:Delete(char *id)CStudentRec temp;int nDel = Seek(id, temp); if (nDel0) return;/ 设置记录中的chFlag为Ntemp.chFlag = N;Update( nDel, temp );void CStudentFile:Update(int nRec, CStudentRec stu)fstream file(strFileName, ios:in|ios:out|ios:binary);/ 二进制读写方式if (!file) coutthe strFileName file cant open !n;return ; int nSize = sizeof(CStudentRec) - 1;file.seekg( nRec * nSize);filestu;file.close();int CStudentFile:Seek(char* id, CStudentRec& stu)/ 按学号查找 int nRec = -1;fstream file(strFileName, ios:in|ios:nocreate);/ 打开文件用于只读if (!file) coutthe strFileNamestu;if (strcmp(id, stu.strID) = 0) & (stu.chFlag = A)nRec = i;break;i+;file.close();return nRec;intCStudentFile:GetRecCount(void)fstream file(strFileName, ios:in|ios:nocreate);/ 打开文件用于只读if (!file) coutthe strFileNamedata;if (data.chFlag = A)nRec+;file.close();return nRec;int CStudentFile:GetStuRec( CStudentRec* data)fstream file(strFileName, ios:in|ios:nocreate);/ 打开文件用于只读if (!file) coutthe strFileNamestu;if (stu.chFlag = A) datanRec = stu;nRec+;file.close();return nRec;/ 文件studentui.h中的内容class CStudentUI: public CConUIpublic:CStudentUI();bool InputStuRec(CStudentRec &stu);/ 通过键盘输入记录void DispStuRecs(CStudentRec *stu, int nNum);/ 显示nNum个记录private:void DispListHead(int nRow = 0);/ 显示表头;CStudentUI:CStudentUI()_SetMainFrameTitle(Management For The Student Scores);_InitMainFrame(7);DispListHead();bool CStudentUI:InputStuRec(CStudentRec &stu)bool bRes = false;char *str5 = Name:, Student ID:, Score 1:, Score 2:, Score 3:;_SetMultiInputTitle( Input student record data );bRes = _InputMultiBox(str, 0, 0, 20, str, 5); if (bRes)strncpy(stu.strName, str0, 20);strncpy(stu.strID, str1, 10);stu.fAve = (float)0.0;for (int i=0; i3; i+) stu.fScorei = (float)atof(stri+2);stu.fAve += stu.fScorei;stu.fAve = float(stu.fAve/3.0);stu.chFlag = A;return bRes;void CStudentUI:DispListHead(int nRow)int nSizeX, nSizeY;_GetWindowSize(&nSizeX, &nSizeY);/ 获得窗口的大小_SaveSettings();_SetBackColor(15);/ 背景色为白色_SetForeColor(0);/ 文本色为黑色_FillBox(0, nRow, nSizeX-1, 1, false);/ 画背景水平条_SetCursorPos(0, nRow);cout.setf(ios:left);coutsetw(10) Rec NOsetw(20)Student Namesetw(10) ID;coutsetw(10)Score 1setw(10)Score 2setw(10)Score 3;coutAveragenMaxLine，/ 则可按PageUp和PageDown向上和向下翻页/ 若nNumnMaxLine，则按ESC键退出const int nMaxLine = 20;int nStart, nEnd, nPage = 0, nMaxPages, nRow=0;nMaxPages = (nNum-1)/nMaxLine;/ 最大可显示的页数unsigned int ch;int nSizeX, nSizeY, nBkColor, nForeColor;for (;) nStart = nPage * nMaxLine;nEnd = nStart + nMaxLine;if (nEnd=nNum) nEnd = nNum;nRow = 0;_ClearWindow();for (int i=nStart; inEnd; i+) if (stui.chFlag = A) _SetCursorPos( 1, nRow );nRow+;cout.setf(ios:left);coutsetw(10)i+1setw(20)stui.strNamesetw(10)stui.strID;coutsetw(10)stui.fScore0setw(10)stui.fScore1setw(10)stui.fScore2;coutstui.fAve;cout.flush();/ 必须有这行代码，否则显示不出来if (nMaxPages = 0) break;else / 显示提示信息,背景为黄色，前景色为黑色nBkColor = _GetBackColor();nForeColor = _GetForeColor();_SetBackColor( 14 );/ 黄色_SetForeColor( 0 );/ 黑色_GetWindowSize( &nSizeX, &nSizeY );_FillBox( 0, nSizeY-1, nSizeX, 1, false );_SetCursorPos( 1, nSizeY-1 );coutPAGE: nPage RECS: nNum;cout.flush();_SetForeColor( nBkColor );cout PL. press PAGEUP or;cout.flush();/ 恢复原来的颜色设置_SetBackColor( nBkColor );_SetForeColor( nForeColor );for(;)ch = _GetKeyChar();/ 当按下ESC退出if (ch = VK_ESCAPE) return;if (ch = VK_PRIOR ) / PAGEUP键nPage-;if (nPagenMaxPages) nPage = nMaxPages;break;/*用于控制台窗口界面设计，版本1.02002 - 20032006.5(1) 添加了控制台窗口的字体设计，(2) 添加了边框型式，(3) 添加主框架窗口的界面*/#include #include #include #include #include #include typedef struct CONSOLE_FONT DWORD index; COORD dim; *PCONSOLE_FONT; typedef BOOL (WINAPI *GetConsoleFontInfoFunc)(HANDLE,BOOL,DWORD,PCONSOLE_FONT); typedef COORD (WINAPI *GetConsoleFontSizeFunc)(HANDLE, DWORD); typedef BOOL (WINAPI *GetCurrentConsoleFontFunc)(HANDLE, BOOL, PCONSOLE_FONT); typedef DWORD (WINAPI *GetNumberOfConsoleFontsFunc)(); typedef BOOL (WINAPI *SetConsoleFontFunc)(HANDLE, DWORD); GetConsoleFontInfoFunc pGetConsoleFontInfo; GetConsoleFontSizeFunc pGetConsoleFontSize; GetCurrentConsoleFontFunc pGetCurrentConsoleFont; GetNumberOfConsoleFontsFunc pGetNumberOfConsoleFonts; SetConsoleFontFunc pSetConsoleFont; PCONSOLE_FONT fonts = NULL; int GetAvailableFonts(HANDLE hCon,PCONSOLE_FONT *fonts) int fontcount = pGetNumberOfConsoleFonts(); *fonts = new CONSOLE_FONTfontcount; pGetConsoleFontInfo(hCon,0,fontcount,*fonts); return fontcount; BOOL SetFont(HANDLE hCon,int index) if (!pSetConsoleFont(hCon,index) return FALSE; return TRUE; BOOL Init() HINSTANCE hLib = NULL; BOOL bRet = TRUE; hLib = LoadLibrary(KERNEL32.DLL); if (hLib = NULL) return FALSE; pGetConsoleFontInfo = (GetConsoleFontInfoFunc)GetProcAddress(hLib,GetConsoleFontInfo); pGetConsoleFontSize = (GetConsoleFontSizeFunc)GetProcAddress(hLib,GetConsoleFontSize); pGetCurrentConsoleFont = (GetCurrentConsoleFontFunc)GetProcAddress(hLib,GetCurrentConsoleFont); pGetNumberOfConsoleFonts = (GetNumberOfConsoleFontsFunc)GetProcAddress(hLib,GetNumberOfConsoleFonts); pSetConsoleFont = (SetConsoleFontFunc)GetProcAddress(hLib,SetConsoleFont); return bRet; class CConsolepublic:CConsole();CConsole();void _ClearWindow(void);/ 清除当前窗口文本，并将光标移至左上角，即位置(0,0)void _DefineWindow(int left, int top, int right, int bottom);/ 重新定义一个窗口，使得所有操作都与这个窗口有关void _GetConwinSize(int *sizex, int *sizey);/ 返回控制台窗口的大小void _GetWindowSize(int *sizex, int *sizey);/ 返回当前窗口的大小void _SaveWindow(void);/ 将当前窗口内容保存到内存中void _SaveWindow(CHAR_INFO *buf);/ 将当前窗口内容保存到指定内存中void _PutWindow(int absX, int absY);/ 将内存的内容写到指定位置处，(absX,absY)是绝对坐标void _PutWindow(int absX, int absY, CHAR_INFO *buf);/ 将指定内容写到指定位置处，(absX,absY)是绝对坐标void _DrawBox(int x, int y, int length, int height, int mode = 0);/ 在指定位置(x, y)绘制一个长为length，宽为height的框，/ 当mode为0是单线，1为双线，2为混合，其它为单线void _FillBox(int x, int y, int length, int height, bool solid = true);/ 填充指定范围的区域，若solid为true则擦除原来区域内容, 否则不擦除void _DrawCharLine(int x, int y, int length, char ch);/ 在指定位置(x, y)绘制一个长为length字符线条，字符由ch指定void _SaveSettings(void);/ 保存当前的属性：光标、颜色和窗口void _LoadSettings(void);/ 恢复_SaveSettings保存的属性void _ShowCursor(bool show = true);/ 显示/隐藏光标void _OutText(char *str, int nch = -1);/ 在当前光标处输出nch个字符void _OutTextXY(int x, int y, char *str, int nch = -1);/ 在指定位置处输出nch个字符void _SetCursorPos(int x, int y);/ 将光标移动到指定位置void _GetCursorPos(int *x, int *y);/ 获取当前光标的位置void _SetBackColor(int color);/ 设置当前背景色int _GetBackColor(void);/ 获取当前背景色void _SetForeColor(int color);/ 设置当前前景色int _GetForeColor(void);/ 获取当前前景色/ 当color = 0表示 黑色/ 当color = 1表示 蓝色/ 当color = 2表示 绿色/ 当color = 3表示 青色/ 当color = 4表示 红色/ 当color = 5表示 洋红/ 当color = 6表示 综色/ 当color = 7表示 淡灰/ 当color = 8表示 深灰/ 当color = 9表示 淡蓝/ 当color = 10 表示 淡绿/ 当color = 11 表示 淡青/ 当color = 12 表示 淡红/ 当color = 13 表示 淡洋红/ 当color = 14 表示 黄色/ 当color = 15 表示 白色unsigned int _GetKeyChar(void);/ 返回用户按键的字符，不等待，没有按键时返回0,/ 若是非打印字符，返回虚拟键码int _GetMouse(int *mx, int *my, int *state);/ 获取鼠标位置(*mx, *my)，鼠标按钮操作状态*state, 1时为单击，2时为双击/ 返回鼠标操作的按钮，5为最右键，1为最左键，2为第2个键，依次类推，一直到4/ 没有鼠标信息或不在当前窗口范围时返回-1，没有按下鼠标按钮，返回0private:HANDLEhOut;/ 输出句柄HANDLEhIn;/ 输入句柄SMALL_RECTrcWindow;/ 窗口WORDbkColor16;/ 背景颜色WORDfoColor16;/ 前景颜色intbkColorIndex, foColorIndex;/ 颜色索引值intnSaveColor2;/ 保存颜色intnSavePos2;/ 保存光标位置boolbSaveShow;/ 保存光标是否显示SMALL_RECT rcSave;/ 保存窗口boolbSaved;/ 是否可以调用_LoadSettingsCHAR_INFOcharInfo100*40;/ 保存窗口内容unsigned int nMaxCols, nMaxRows;/ 最大的行和列;/ CConsole类实现代码CConsole:CConsole()hOut = GetStdHandle(STD_OUTPUT_HANDLE);/ 获取标准输出设备句柄hIn = GetStdHandle(STD_INPUT_HANDLE);/ 获取标准输入设备句柄 / 设置默认字体PCONSOLE_FONT fonts = NULL; HANDLE hConsole = GetStdHandle( STD_ERROR_HANDLE ); Init(); int count = GetAvailableFonts(hConsole,&fonts); SetFont(hConsole,fontscount-1.index); SetConsoleOutputCP(437);/ 设置代码页SMALL_RECT rc = 0,0, 80-1, 25-1;rcWindow = rc;/ 定义默认的窗口大小COORD size = 80, 25;SetConsoleScreenBufferSize(hOut,size);/ 设置缓冲区大小SetConsoleWindowInfo(hOut,true ,&rc);/ 显示全部控制台窗口/ 定义颜色foColor0 = bkColor0 = 0;foColor1 = FOREGROUND_BLUE;foColor2 = FOREGROUND_GREEN;foColor3 = FOREGROUND_BLUE | FOREGROUND_GREEN;foColor4 = FOREGROUND_RED;foColor5 = FOREGROUND_RED | FOREGROUND_BLUE;foColor6 = FOREGROUND_RED | FOREGROUND_GREEN;foColor7 = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;bkColor1 = BACKGROUND_BLUE;bkColor2 = BACKGROUND_GREEN;bkColor3 = BACKGROUND_BLUE | BACKGROUND_GREEN;bkColor4 = BACKGROUND_RED;bkColor5 = BACKGROUND_RED | BACKGROUND_BLUE;bkColor6 = BACKGROUND_RED | BACKGROUND_GREEN;bkColor7 = BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE;for (int i=0; i=7; i+)foColori+8 = foColori + FOREGROUND_INTENSITY; bkColori+8 = bkColori + BACKGROUND_INTENSITY; bkColorIndex = 15;/ 白色foColorIndex = 0; / 黑色SetConsoleTextAttribute(hOut, bkColorbkColorIndex|foColorfoColorIndex);_ClearWindow();_SetCursorPos(0, 0);bSaved = false;nMaxCols = nMaxRows = 0;CConsole:CConsole()CloseHandle(hOut);/ 关闭标准输出设备句柄CloseHandle(hIn);/ 关闭标准输入设备句柄void CConsole:_DrawCharLine(int x, int y, int length, char ch)COORD pos = rcWindow.Left + x, rcWindow.Top + y;CONSOLE_SCREEN_BUFFER_INFO bInfo; GetConsoleScreenBufferInfo( hOut, &bInfo );WORD att = bInfo.wAttributes;for (int i = 0; i5) mode = 0;if (mode = 0) / 单线chBox0 = (char)0xda;/ 左上角点chBox1 = (char)0xbf;/ 右上角点chBox2 = (char)0xc0;/ 左下角点chBox3 = (char)0xd9;/ 右下角点chBox4 = (char)0xc4;/ 水平chBox5 = (char)0xc4;/ 水平chBox6 = (char)0xb3;/ 坚直 else if (mode = 1)/ 双线chBox0 = (char)0xc9;/ 左上角点chBox1 = (char)0xbb;/ 右上角点chBox2 = (char)0xc8;/ 左下角点chBox3 = (char)0xbc;/ 右下角点chBox4 = (char)0xcd;/ 水平chBox5 = (char)0xcd;/ 水平chBox6 = (char)0xba;/ 坚直 else if (mode = 2)/ 混合, 上双余单chBox0 = (char)0xd5;/ 左上角点chBox1 = (char)0xb8;/ 右上角点chBox2 = (char)0xc0;/ 左下角点chBox3 = (char)0xd9;/ 右下角点chBox4 = (char)0xcd;/ 上水平chBox5 = (char)0xc4;/ 下水平chBox6 = (char)0xb3;/ 坚直 else if (mode = 3)/ 混合, 上单双余chBox0 = (char)0xd6;/ 左上角点chBox1 = (char)0xb7;/ 右上角点chBox2 = (char)0xc8;/ 左下角点chBox3 = (char)0xbc;/ 右下角点chBox4 = (char)0xc4;/ 上水平chBox5 = (char)0xcd;/ 下水平chBox6 = (char)0xba;/ 坚直 else if (mode = 4)/ 混合, 下单余双chBox0 = (char)0xc9;/ 左上角点chBox1 = (char)0xbb;/ 右上角点chBox2 = (char)0xd3;/ 左下角点chBox3 = (char)0xbd;/ 右下角点chBox4 = (char)0xcd;/ 上水平chBox5 = (char)0xc4;/ 下水平chBox6 = (char)0xba;/ 坚直 else if (m