├── StudentInfoSystem.pro ├── StudentInfoSystem.pro.user ├── cho.txt ├── choose.cpp ├── choose.h ├── code_convert.cpp ├── course.cpp ├── course.h ├── crs.txt ├── main.cpp ├── mainwindow.cpp ├── mainwindow.h ├── mainwindow.ui ├── stu.txt ├── student.cpp └── student.h /StudentInfoSystem.pro: -------------------------------------------------------------------------------- 1 | #------------------------------------------------- 2 | # 3 | # Project created by QtCreator 2017-08-16T16:09:20 4 | # 5 | #------------------------------------------------- 6 | 7 | QT += core gui 8 | 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 10 | 11 | TARGET = StudentInfoSystem 12 | TEMPLATE = app 13 | 14 | # The following define makes your compiler emit warnings if you use 15 | # any feature of Qt which as been marked as deprecated (the exact warnings 16 | # depend on your compiler). Please consult the documentation of the 17 | # deprecated API in order to know how to port your code away from it. 18 | DEFINES += QT_DEPRECATED_WARNINGS 19 | 20 | # You can also make your code fail to compile if you use deprecated APIs. 21 | # In order to do so, uncomment the following line. 22 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 23 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 24 | 25 | 26 | SOURCES += \ 27 | main.cpp \ 28 | mainwindow.cpp \ 29 | student.cpp \ 30 | course.cpp \ 31 | choose.cpp \ 32 | code_convert.cpp 33 | 34 | HEADERS += \ 35 | mainwindow.h \ 36 | student.h \ 37 | course.h \ 38 | choose.h 39 | 40 | FORMS += \ 41 | mainwindow.ui 42 | -------------------------------------------------------------------------------- /StudentInfoSystem.pro.user: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | EnvironmentId 7 | 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556 | 18 557 | 558 | 559 | Version 560 | 18 561 | 562 | 563 | -------------------------------------------------------------------------------- /cho.txt: -------------------------------------------------------------------------------- 1 | 10000 英语 85 2 | 10001 英语 78 3 | 10002 英语 95 4 | 10001 语文 72 5 | 10002 语文 90 6 | 10003 语文 88 7 | 10002 历史 89 8 | 10003 历史 88 9 | 10004 历史 94 10 | 10005 历史 74 11 | 10001 地理 88 12 | 10002 地理 87 13 | 10003 地理 92 14 | 10004 地理 93 15 | 10005 地理 69 16 | 10003 数学 88 17 | 10002 数学 99 18 | 10005 计算机 82 19 | 10004 计算机 86 20 | 10003 计算机 88 21 | 10002 计算机 93 22 | 10001 计算机 87 23 | -------------------------------------------------------------------------------- /choose.cpp: -------------------------------------------------------------------------------- 1 | #include "choose.h" 2 | #include 3 | #include 4 | #include 5 | choose::choose() 6 | { 7 | choose::count = 0; 8 | choose::head = NULL; 9 | } 10 | 11 | choose::~choose() 12 | { 13 | 14 | } 15 | 16 | bool choose::read(const char *filename) 17 | { 18 | FILE *fp = fopen(filename, "r"); 19 | if(fp == NULL) 20 | return 0; 21 | char ch; 22 | int i = 0; 23 | int mode = 0; 24 | StuCrsInfo *p = new StuCrsInfo; 25 | p->next = NULL; 26 | char grade_temp[20]; 27 | while((ch = fgetc(fp)) != EOF) 28 | { 29 | if(mode == 0 && ch != ' ' && ch != '\n') 30 | p->stu[i++]=ch; 31 | else if(mode == 1 && ch != ' ' && ch != '\n') 32 | p->crs[i++] = ch; 33 | else if(mode == 2 && ch != ' ' && ch != '\n') 34 | grade_temp[i++] = ch; 35 | else if(ch == '\n') 36 | { 37 | grade_temp[i] = '\0'; 38 | i = 0; 39 | mode = 0; 40 | p->grade = atoi(grade_temp); 41 | if(choose::serh(p, 2) == NULL) 42 | { 43 | if(choose::head != NULL) 44 | p->next = choose::head; 45 | choose::head = p; 46 | ++choose::count; 47 | } 48 | p = new StuCrsInfo; 49 | p->next = NULL; 50 | } 51 | else if(ch == ' ') 52 | { 53 | if(mode == 0) 54 | { 55 | p->stu[i] = '\0'; 56 | i = 0; 57 | } 58 | else if(mode == 1) 59 | { 60 | p->crs[i] = '\0'; 61 | i = 0; 62 | } 63 | mode++; 64 | } 65 | } 66 | fclose(fp); 67 | return 1; 68 | } 69 | 70 | bool choose::save(const char *filename) 71 | { 72 | StuCrsInfo *p = choose::head; 73 | FILE *fp = fopen(filename, "w"); 74 | while(p != NULL) 75 | { 76 | fprintf(fp, p->stu); 77 | fprintf(fp, " "); 78 | fprintf(fp, p->crs); 79 | fprintf(fp, " "); 80 | char buffer[20]; 81 | itoa(p->grade, buffer, 10); 82 | fprintf(fp, buffer); 83 | fprintf(fp, "\n"); 84 | p = p->next; 85 | } 86 | fclose(fp); 87 | return 1; 88 | } 89 | 90 | bool choose::add(StuCrsInfo *info) 91 | { 92 | if(choose::serh(info, 2) != NULL) 93 | return 0; 94 | choose::count += 1; 95 | info->next = choose::head; 96 | choose::head = info; 97 | return 1; 98 | } 99 | 100 | bool choose::del(StuCrsInfo *info, int type) 101 | { 102 | StuCrsInfo *point; 103 | StuCrsInfo *p = choose::head; 104 | if((point = choose::serh(info, type)) == NULL) 105 | return 0; 106 | choose::count -= 1; 107 | if(p == point) 108 | { 109 | choose::head = choose::head->next; 110 | return 1; 111 | } 112 | while(p->next != NULL) 113 | if(p->next == point) 114 | break; 115 | else 116 | p = p->next; 117 | p->next = p->next->next; 118 | return 1; 119 | } 120 | 121 | StuCrsInfo *choose::serh(StuCrsInfo *info, int type) 122 | { 123 | StuCrsInfo *p = choose::head; 124 | while(p != NULL) 125 | { 126 | if(type == 0 && strcmp(info->stu, p->stu) == 0) 127 | return p; 128 | else if(type == 1 && strcmp(info->crs, p->crs) == 0) 129 | return p; 130 | else if(type == 2 && strcmp(info->crs, p->crs) == 0 && strcmp(info->stu, p->stu) == 0) 131 | return p; 132 | else if(type == 3 && strcmp(info->stu, p->stu) == 0) 133 | { 134 | StuCrsInfo *temp = new StuCrsInfo; 135 | strcpy(temp->crs, p->crs); 136 | strcpy(temp->stu, p->stu); 137 | temp->grade = p->grade; 138 | temp->next = info; 139 | info = temp; 140 | } 141 | else if(type == 4 && strcmp(info->crs, p->crs) == 0) 142 | { 143 | StuCrsInfo *temp = new StuCrsInfo; 144 | strcpy(temp->crs, p->crs); 145 | strcpy(temp->stu, p->stu); 146 | temp->grade = p->grade; 147 | temp->next = info; 148 | info = temp; 149 | } 150 | p = p->next; 151 | } 152 | return (type < 3) ? NULL : info; 153 | } 154 | 155 | bool choose::addgrade(StuCrsInfo *p) 156 | { 157 | StuCrsInfo *node = choose::serh(p, 2); 158 | if(node == NULL) 159 | return 0; 160 | node->grade = p->grade; 161 | return 1; 162 | } 163 | 164 | bool choose::delgrade(StuCrsInfo *p) 165 | { 166 | StuCrsInfo *node = choose::serh(p, 2); 167 | if(node == NULL) 168 | return 0; 169 | node->grade = -1; 170 | return 1; 171 | } 172 | -------------------------------------------------------------------------------- /choose.h: -------------------------------------------------------------------------------- 1 | #ifndef CHOOSE_H 2 | #define CHOOSE_H 3 | 4 | struct StuCrsInfo{ 5 | char stu[20]; 6 | char crs[20]; 7 | int grade; 8 | StuCrsInfo *next; 9 | }; 10 | 11 | class choose{ 12 | public: 13 | choose(); 14 | ~choose(); 15 | int count; 16 | StuCrsInfo *head; 17 | bool read(const char *); 18 | bool save(const char *); 19 | StuCrsInfo *serh(StuCrsInfo *, int); 20 | bool add(StuCrsInfo *); 21 | bool del(StuCrsInfo *, int); 22 | bool addgrade(StuCrsInfo *); 23 | bool delgrade(StuCrsInfo *); 24 | }; 25 | #endif // CHOOSE_H 26 | -------------------------------------------------------------------------------- /code_convert.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | * Refer to : http://blog.csdn.net/denny97104/article/details/45443055 3 | */ 4 | #include 5 | #include 6 | #include 7 | 8 | QByteArray AnsiToUtf8(QByteArray &ansi) 9 | { 10 | int len; 11 | QByteArray result; 12 | //ANSI转UNICODE 13 | len = MultiByteToWideChar(CP_ACP, NULL, ansi.data(), -1, NULL, 0); 14 | WCHAR * unicode = new WCHAR[len+1]; 15 | memset(unicode, 0, len * 2 + 2); 16 | MultiByteToWideChar(CP_ACP, NULL, ansi.data(), -1, unicode, len); 17 | //UNICODE转utf8 18 | len = WideCharToMultiByte(CP_UTF8, 0, unicode, -1, NULL, 0, NULL, NULL); 19 | char *utf8=new char[len + 1]; 20 | memset(utf8, 0, len + 1); 21 | WideCharToMultiByte (CP_UTF8, 0, unicode, -1, utf8, len, NULL,NULL); 22 | result = utf8; 23 | delete[] unicode; 24 | delete[] utf8; 25 | return result; 26 | } 27 | -------------------------------------------------------------------------------- /course.cpp: -------------------------------------------------------------------------------- 1 | #include "course.h" 2 | #include 3 | #include 4 | #include 5 | course::course() 6 | { 7 | course::count = 0; 8 | course::head = NULL; 9 | } 10 | 11 | course::~course() 12 | { 13 | 14 | } 15 | 16 | bool course::read(const char *filename) 17 | { 18 | FILE *fp = fopen(filename, "r"); 19 | if(fp == NULL) 20 | return 0; 21 | char ch; 22 | int i = 0; 23 | int mode = 0; 24 | char score_temp[20] = {'\0'}; 25 | char type_temp; 26 | CourseInfo *p = new CourseInfo; 27 | p->next = NULL; 28 | while((ch = fgetc(fp)) != EOF) 29 | { 30 | if(mode == 0 && ch != ' ' && ch != '\n') 31 | p->name[i++]=ch; 32 | else if(mode == 1 && ch != ' ' && ch != '\n') 33 | score_temp[i++] = ch; 34 | else if(mode == 2 && ch != ' ' && ch != '\n') 35 | type_temp = ch; 36 | else if(ch == '\n') 37 | { 38 | score_temp[i] = '\0'; 39 | p->score = atoi(score_temp); 40 | p->type = type_temp - '0'; 41 | i = 0; 42 | mode = 0; 43 | CourseInfo *point; 44 | if((point = course::serh(p, 0, course::head)) != NULL) 45 | { 46 | strcpy(point->name, p->name); 47 | } 48 | else 49 | { 50 | if(course::head != NULL) 51 | p->next = course::head; 52 | course::head = p; 53 | ++course::count; 54 | } 55 | p = new CourseInfo; 56 | p->next = NULL; 57 | } 58 | else if(ch == ' ') 59 | { 60 | if(mode == 0) 61 | { 62 | p->name[i] = '\0'; 63 | i = 0; 64 | } 65 | mode++; 66 | } 67 | } 68 | fclose(fp); 69 | return 1; 70 | } 71 | 72 | bool course::save(const char *filename, CourseInfo *head) 73 | { 74 | CourseInfo *p = head; 75 | FILE *fp = fopen(filename, "w"); 76 | while(p != NULL) 77 | { 78 | fprintf(fp, p->name); 79 | fprintf(fp, " "); 80 | char buffer[20]; 81 | itoa(p->score, buffer, 10); 82 | fprintf(fp, buffer); 83 | fprintf(fp, " "); 84 | itoa(p->type, buffer, 10); 85 | fprintf(fp, buffer); 86 | fprintf(fp, "\n"); 87 | p = p->next; 88 | } 89 | fclose(fp); 90 | return 1; 91 | } 92 | 93 | bool course::add(CourseInfo *info) 94 | { 95 | if(!(course::serh(info, 0, head) == NULL)) 96 | return 0; 97 | course::count += 1; 98 | info->next = course::head; 99 | course::head = info; 100 | return 1; 101 | } 102 | 103 | bool course::del(CourseInfo *info, bool type) 104 | { 105 | CourseInfo *point; 106 | CourseInfo *p = course::head; 107 | if((point = course::serh(info, type, course::head)) == NULL) 108 | return 0; 109 | course::count -= 1; 110 | if(p == point) 111 | { 112 | course::head = course::head->next; 113 | return 1; 114 | } 115 | while(p->next != NULL) 116 | if(p->next == point) 117 | break; 118 | else 119 | p = p->next; 120 | p->next = p->next->next; 121 | return 1; 122 | } 123 | 124 | CourseInfo *course::serh(CourseInfo *info, int type, CourseInfo *head) 125 | { 126 | CourseInfo *p = head; 127 | while(p != NULL) 128 | { 129 | if(type == 0 && strcmp(info->name, p->name) == 0) 130 | return p; 131 | else if(type == 1 && info->score == p->score) 132 | return p; 133 | p = p->next; 134 | } 135 | return NULL; 136 | } 137 | -------------------------------------------------------------------------------- /course.h: -------------------------------------------------------------------------------- 1 | #ifndef COURSE_H 2 | #define COURSE_H 3 | #define COURSE_NAME_SIZE 20 4 | 5 | struct CourseInfo{ 6 | char name[COURSE_NAME_SIZE]; 7 | int score; 8 | int type; 9 | CourseInfo *next; 10 | }; 11 | 12 | class course{ 13 | public: 14 | course(); 15 | ~course(); 16 | int count; 17 | CourseInfo *head; 18 | bool read(const char *); 19 | bool save(const char *, CourseInfo *head); 20 | CourseInfo *serh(CourseInfo *, int, CourseInfo *head); 21 | bool add(CourseInfo *); 22 | bool del(CourseInfo *, bool); 23 | }; 24 | #endif // COURSE_H 25 | -------------------------------------------------------------------------------- /crs.txt: -------------------------------------------------------------------------------- 1 | 地理 2 0 2 | 语文 3 0 3 | 计算机 2 1 4 | 英语 3 1 5 | 数学 3 2 6 | 历史 2 2 7 | -------------------------------------------------------------------------------- /main.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | * 本程序中读取文件编码请使用ansi! 3 | */ 4 | 5 | #include "mainwindow.h" 6 | #include 7 | int main(int argc, char *argv[]) 8 | { 9 | QApplication a(argc, argv); 10 | MainWindow w; 11 | w.show(); 12 | return a.exec(); 13 | } 14 | -------------------------------------------------------------------------------- /mainwindow.cpp: -------------------------------------------------------------------------------- 1 | #include "mainwindow.h" 2 | #include "ui_mainwindow.h" 3 | #include 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | #include 13 | #include 14 | #include 15 | #include 16 | #include 17 | #include 18 | #include 19 | #include "student.h" 20 | #include "course.h" 21 | #include "choose.h" 22 | 23 | student Student; 24 | course Course; 25 | choose Choose; 26 | 27 | extern QByteArray AnsiToUtf8(QByteArray &ansi); 28 | 29 | MainWindow::MainWindow(QWidget *parent) : 30 | QMainWindow(parent), 31 | ui(new Ui::MainWindow) 32 | { 33 | ui->setupUi(this); 34 | //预先读取文件 35 | Student.read("stu.txt"); 36 | Course.read("crs.txt"); 37 | Choose.read("cho.txt"); 38 | MainWindow::display_course_info(); 39 | MainWindow::display_choose_info(); 40 | MainWindow::display_student_info(); 41 | //窗口大小设置 42 | setWindowFlags(windowFlags()& ~Qt::WindowMaximizeButtonHint); 43 | setFixedSize(this->width(), this->height()); 44 | //右键菜单设置 45 | Act_Stu_Del = new QAction(tr("删除学生信息"), this); 46 | Act_Stu_Chg = new QAction(tr("修改学生信息"), this); 47 | Act_Stu_Add = new QAction(tr("添加学生信息"), this); 48 | Act_Crs_Del = new QAction(tr("删除课程"), this); 49 | Act_Crs_Add = new QAction(tr("添加课程"), this); 50 | Act_Cho_Del = new QAction(tr("退课"), this); 51 | Act_Cho_Add = new QAction(tr("选课"), this); 52 | Act_Srh_Stu = new QAction(tr("搜索当前学生所选的课程"), this); 53 | Act_Srh_Crs = new QAction(tr("搜索选择当前课程的学生"), this); 54 | Act_ADDGRADE = new QAction(tr("添加成绩"), this); 55 | Act_DELGRADE = new QAction(tr("删除成绩"), this); 56 | Act_Calc = new QAction(tr("计算学分绩"), this); 57 | connect(Act_Stu_Del, SIGNAL(triggered()), this, SLOT(on_stu_del_triggered())); 58 | connect(Act_Stu_Chg, SIGNAL(triggered()), this, SLOT(on_stu_chg_triggered())); 59 | connect(Act_Stu_Add, SIGNAL(triggered()), this, SLOT(on_stu_add_triggered())); 60 | connect(Act_Crs_Del, SIGNAL(triggered()), this, SLOT(on_class_del_triggered())); 61 | connect(Act_Crs_Add, SIGNAL(triggered()), this, SLOT(on_class_add_triggered())); 62 | connect(Act_Cho_Del, SIGNAL(triggered()), this, SLOT(on_delete_class_triggered())); 63 | connect(Act_Cho_Add, SIGNAL(triggered()), this, SLOT(on_choose_class_triggered())); 64 | connect(Act_Srh_Stu, SIGNAL(triggered()), this, SLOT(on_search_stu_triggered())); 65 | connect(Act_Srh_Crs, SIGNAL(triggered()), this, SLOT(on_search_class_triggered())); 66 | connect(Act_ADDGRADE, SIGNAL(triggered()), this, SLOT(on_add_grade_triggered())); 67 | connect(Act_DELGRADE, SIGNAL(triggered()), this, SLOT(on_del_grade_triggered())); 68 | connect(Act_Calc, SIGNAL(triggered()), this, SLOT(on_caculate_triggered())); 69 | } 70 | 71 | void MainWindow::contextMenuEvent(QContextMenuEvent *) 72 | { 73 | //qDebug()<tabWidget->currentIndex(); 74 | QCursor cur=this->cursor(); 75 | QMenu *menu = new QMenu; 76 | if(ui->tabWidget->currentIndex() == 0) 77 | { 78 | menu->addAction(Act_Stu_Del); 79 | menu->addAction(Act_Stu_Chg); 80 | menu->addAction(Act_Stu_Add); 81 | menu->addAction(Act_Srh_Stu); 82 | menu->addAction(Act_Calc); 83 | } 84 | else if(ui->tabWidget->currentIndex() == 1) 85 | { 86 | menu->addAction(Act_Crs_Del); 87 | menu->addAction(Act_Crs_Add); 88 | menu->addAction(Act_Srh_Crs); 89 | } 90 | else if(ui->tabWidget->currentIndex() == 2) 91 | { 92 | menu->addAction(Act_Cho_Del); 93 | menu->addAction(Act_Cho_Add); 94 | menu->addAction(Act_Srh_Stu); 95 | menu->addAction(Act_Srh_Crs); 96 | menu->addAction(Act_ADDGRADE); 97 | menu->addAction(Act_DELGRADE); 98 | menu->addAction(Act_Calc); 99 | } 100 | menu->exec(cur.pos()); 101 | delete menu; 102 | } 103 | 104 | MainWindow::~MainWindow() 105 | { 106 | delete ui; 107 | } 108 | 109 | //============DisplayToTableWeight 110 | void MainWindow::display_student_info() 111 | { 112 | ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch); 113 | ui->tableWidget->clearContents(); 114 | for(int loop = 0; loop < ui->tableWidget->rowCount();) 115 | ui->tableWidget->removeRow(loop); 116 | StuInfo *p = Student.head; 117 | while(p != NULL) 118 | { 119 | int rows = ui->tableWidget->rowCount(); 120 | ui->tableWidget->insertRow(rows); 121 | ui->tableWidget->setItem(rows, 0, new QTableWidgetItem(p->name)); 122 | ui->tableWidget->setItem(rows, 1, new QTableWidgetItem(p->id)); 123 | p = p->next; 124 | } 125 | } 126 | 127 | void MainWindow::display_course_info() 128 | { 129 | ui->tableWidget_2->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch); 130 | ui->tableWidget_2->clearContents(); 131 | for(int loop = 0; loop < ui->tableWidget_2->rowCount();) 132 | ui->tableWidget_2->removeRow(loop); 133 | CourseInfo *p = Course.head; 134 | while(p != NULL) 135 | { 136 | int rows = ui->tableWidget_2->rowCount(); 137 | ui->tableWidget_2->insertRow(rows); 138 | ui->tableWidget_2->setItem(rows, 0, new QTableWidgetItem(p->name)); 139 | ui->tableWidget_2->setItem(rows, 1, new QTableWidgetItem(QString::number(p->score))); 140 | ui->tableWidget_2->setItem(rows, 2, new QTableWidgetItem((p->type == 0)?"通过型":((p->type == 1)?"等级型":"分数型"))); 141 | p = p->next; 142 | } 143 | } 144 | 145 | void MainWindow::display_choose_info() 146 | { 147 | ui->tableWidget_3->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch); 148 | ui->tableWidget_3->clearContents(); 149 | for(int loop = 0; loop < ui->tableWidget_3->rowCount();) 150 | ui->tableWidget_3->removeRow(loop); 151 | StuCrsInfo *p = Choose.head; 152 | while(p != NULL) 153 | { 154 | StuInfo *ps = new StuInfo; 155 | ps->next = NULL; 156 | strcpy(ps->id, p->stu); 157 | char name_tmp[20] = {'\0'}; 158 | StuInfo *pss = Student.serh(ps, 1); 159 | strcpy(name_tmp, (pss == NULL)?"":pss->name); 160 | delete ps; 161 | 162 | CourseInfo *pc = new CourseInfo; 163 | pc->next = NULL; 164 | strcpy(pc->name, p->crs); 165 | int score_tmp; 166 | CourseInfo *pcs = Course.serh(pc, 0, Course.head); 167 | score_tmp = (pcs == NULL)?-1:pcs->score; 168 | delete pc; 169 | 170 | int rows = ui->tableWidget_3->rowCount(); 171 | ui->tableWidget_3->insertRow(rows); 172 | ui->tableWidget_3->setItem(rows, 0, new QTableWidgetItem(p->stu)); 173 | ui->tableWidget_3->setItem(rows, 1, new QTableWidgetItem(name_tmp)); 174 | ui->tableWidget_3->setItem(rows, 2, new QTableWidgetItem(p->crs)); 175 | ui->tableWidget_3->setItem(rows, 3, new QTableWidgetItem(QString::number(score_tmp))); 176 | ui->tableWidget_3->setItem(rows, 4, new QTableWidgetItem(((p->grade)==-1)?"":QString::number(p->grade))); 177 | p = p->next; 178 | } 179 | } 180 | 181 | //============StudentInfos 182 | void MainWindow::on_stu_read_triggered() 183 | { 184 | QStringList fileNames = QFileDialog::getOpenFileNames(this, "打开文件", ".", ("文本文件(*.txt)")); 185 | if(fileNames.size() == 0) return; 186 | for(int i = 0; i < fileNames.size(); ++i) 187 | { 188 | QByteArray bytearray = fileNames[i].toLocal8Bit(); 189 | char *temp = bytearray.data(); 190 | if(temp == NULL) continue; 191 | Student.read(temp); 192 | } 193 | char buffer[20]; 194 | itoa(Student.count, buffer,10); 195 | char output[100]; 196 | strcat(output, "导入完成，当前一共有"); 197 | strcat(output, buffer); 198 | strcat(output, "个数据"); 199 | QMessageBox::information(NULL, "导入完成", output, QMessageBox::Ok, QMessageBox::Ok); 200 | MainWindow::display_student_info(); 201 | MainWindow::display_choose_info(); 202 | } 203 | 204 | void MainWindow::on_stu_save_triggered() 205 | { 206 | QString fileName = QFileDialog::getOpenFileName(this, "另存为...", ".", ("文本文件(*.txt)")); 207 | if(fileName.length() == 0) return; 208 | QByteArray bytearray = fileName.toLocal8Bit(); 209 | char *temp = bytearray.data(); 210 | Student.save(temp); 211 | QMessageBox::information(NULL, "保存完成", "保存完成", QMessageBox::Ok, QMessageBox::Ok); 212 | MainWindow::display_student_info(); 213 | } 214 | 215 | void MainWindow::on_stu_del_triggered() 216 | { 217 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 218 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 219 | ui->tableWidget_3->selectedItems()); 220 | char temp[20] = {'\0'}; 221 | QString text; 222 | if(!items.count() || ui->tabWidget->currentIndex() == 1) 223 | { 224 | text = QInputDialog::getText(NULL, tr("删除学生数据"), tr("请输入学号信息")); 225 | } 226 | else 227 | { 228 | QTableWidgetItem *item=(ui->tabWidget->currentIndex() == 0)?items.at(1):items.at(0); 229 | text = item->text(); 230 | } 231 | if(text == NULL) 232 | return; 233 | QByteArray bytearray = text.toLocal8Bit(); 234 | bytearray = AnsiToUtf8(bytearray); 235 | strcpy(temp, bytearray.data()); 236 | StuInfo *p = new StuInfo; 237 | p->next = NULL; 238 | strcpy(p->id, temp); 239 | if(Student.del(p, 1)) 240 | { 241 | StuCrsInfo *ps = new StuCrsInfo; 242 | ps->next = NULL; 243 | strcpy(ps->stu, p->id); 244 | while(Choose.del(ps, 0)); 245 | delete ps; 246 | QMessageBox::information(NULL, "删除结果", "删除成功", QMessageBox::Ok, QMessageBox::Ok); 247 | } 248 | else 249 | QMessageBox::information(NULL, "删除结果", "删除失败-不存在此学号", QMessageBox::Ok, QMessageBox::Ok); 250 | delete p; 251 | MainWindow::display_student_info(); 252 | MainWindow::display_choose_info(); 253 | } 254 | 255 | void MainWindow::on_stu_add_triggered() 256 | { 257 | QString text = QInputDialog::getText(NULL, tr("添加学生数据"), tr("请输入学号信息")); 258 | if(text == NULL) 259 | return; 260 | QByteArray bytearray = text.toLocal8Bit(); 261 | bytearray = AnsiToUtf8(bytearray); 262 | char *stuid = bytearray.data(); 263 | 264 | QString text2 = QInputDialog::getText(NULL, tr("添加学生数据"), tr("请输入姓名信息")); 265 | if(text2 == NULL) 266 | return; 267 | QByteArray bytearray2 = text2.toLocal8Bit(); 268 | bytearray2 = AnsiToUtf8(bytearray2); 269 | char *stuname = bytearray2.data(); 270 | 271 | StuInfo *p = new StuInfo; 272 | p->next = NULL; 273 | strcpy(p->id, stuid); 274 | strcpy(p->name, stuname); 275 | 276 | if(Student.add(p)) 277 | QMessageBox::information(NULL, "添加结果", "添加成功", QMessageBox::Ok, QMessageBox::Ok); 278 | else 279 | QMessageBox::information(NULL, "添加结果", "添加失败-学号重复", QMessageBox::Ok, QMessageBox::Ok); 280 | MainWindow::display_student_info(); 281 | MainWindow::display_choose_info(); 282 | } 283 | 284 | void MainWindow::on_stu_chg_triggered() 285 | { 286 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 287 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 288 | ui->tableWidget_3->selectedItems()); 289 | char stuid[20] = {'\0'}; 290 | QString text; 291 | if(!items.count() || ui->tabWidget->currentIndex() == 1) 292 | { 293 | text = QInputDialog::getText(NULL, tr("修改学生数据"), tr("请输入学号信息")); 294 | } 295 | else 296 | { 297 | QTableWidgetItem *item=(ui->tabWidget->currentIndex() == 0)?items.at(1):items.at(0); 298 | text = item->text(); 299 | } 300 | if(text == NULL) 301 | return; 302 | QByteArray bytearray = text.toLocal8Bit(); 303 | bytearray = AnsiToUtf8(bytearray); 304 | strcpy(stuid, bytearray.data()); 305 | 306 | QString text2 = QInputDialog::getText(NULL, tr("修改学生数据"), tr("请输入新姓名信息")); 307 | if(text2 == NULL) 308 | return; 309 | QByteArray bytearray2 = text2.toLocal8Bit(); 310 | bytearray2 = AnsiToUtf8(bytearray2); 311 | char *stunewname = bytearray2.data(); 312 | StuInfo *p = new StuInfo; 313 | p->next = NULL; 314 | strcpy(p->id, stuid); 315 | strcpy(p->name, stunewname); 316 | if(Student.chg(p, 0)) 317 | QMessageBox::information(NULL, "修改结果", "修改成功", QMessageBox::Ok, QMessageBox::Ok); 318 | else 319 | QMessageBox::information(NULL, "修改结果", "修改失败-学号不存在", QMessageBox::Ok, QMessageBox::Ok); 320 | delete p; 321 | MainWindow::display_student_info(); 322 | MainWindow::display_choose_info(); 323 | } 324 | 325 | //============CourseInfos 326 | void MainWindow::on_class_read_triggered() 327 | { 328 | QStringList fileNames = QFileDialog::getOpenFileNames(this, "打开文件", ".", ("文本文件(*.txt)")); 329 | if(fileNames.size() == 0) return; 330 | for(int i = 0; i < fileNames.size(); ++i) 331 | { 332 | QByteArray bytearray = fileNames[i].toLocal8Bit(); 333 | char *temp = bytearray.data(); 334 | if(temp == NULL) continue; 335 | Course.read(temp); 336 | } 337 | char buffer[20]; 338 | itoa(Course.count, buffer,10); 339 | char output[100]; 340 | strcat(output, "导入完成，当前一共有"); 341 | strcat(output, buffer); 342 | strcat(output, "个课程信息"); 343 | QMessageBox::information(NULL, "导入完成", output, QMessageBox::Ok, QMessageBox::Ok); 344 | MainWindow::display_course_info(); 345 | MainWindow::display_choose_info(); 346 | } 347 | 348 | void MainWindow::on_class_save_triggered() 349 | { 350 | QString fileName = QFileDialog::getOpenFileName(this, "另存为...", ".", ("文本文件(*.txt)")); 351 | if(fileName.length() == 0) return; 352 | QByteArray bytearray = fileName.toLocal8Bit(); 353 | char *temp = bytearray.data(); 354 | Course.save(temp, Course.head); 355 | QMessageBox::information(NULL, "保存完成", "保存完成", QMessageBox::Ok, QMessageBox::Ok); 356 | MainWindow::display_course_info(); 357 | } 358 | 359 | void MainWindow::on_class_del_triggered() 360 | { 361 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 362 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 363 | ui->tableWidget_3->selectedItems()); 364 | char temp[20] = {'\0'}; 365 | QString text; 366 | if(!items.count() || ui->tabWidget->currentIndex() == 0) 367 | { 368 | text = QInputDialog::getText(NULL, tr("删除课程数据"), tr("请输入课程名")); 369 | } 370 | else 371 | { 372 | QTableWidgetItem *item=(ui->tabWidget->currentIndex() == 1)?items.at(0):items.at(2); 373 | text = item->text(); 374 | } 375 | if(text == NULL) 376 | return; 377 | QByteArray bytearray = text.toLocal8Bit(); 378 | bytearray = AnsiToUtf8(bytearray); 379 | strcpy(temp, bytearray.data()); 380 | CourseInfo *p = new CourseInfo; 381 | p->next = NULL; 382 | strcpy(p->name, temp); 383 | if(Course.del(p, 0)) 384 | { 385 | StuCrsInfo *ps = new StuCrsInfo; 386 | ps->next = NULL; 387 | strcpy(ps->crs, p->name); 388 | while(Choose.del(ps, 1)); 389 | delete ps; 390 | QMessageBox::information(NULL, "删除结果", "删除成功", QMessageBox::Ok, QMessageBox::Ok); 391 | } 392 | else 393 | QMessageBox::information(NULL, "删除结果", "删除失败-不存在此课程", QMessageBox::Ok, QMessageBox::Ok); 394 | delete p; 395 | MainWindow::display_course_info(); 396 | MainWindow::display_choose_info(); 397 | } 398 | 399 | void MainWindow::on_class_add_triggered() 400 | { 401 | QString text = QInputDialog::getText(NULL, tr("添加课程数据"), tr("请输入课程名")); 402 | if(text == NULL) 403 | return; 404 | QByteArray bytearray = text.toLocal8Bit(); 405 | bytearray = AnsiToUtf8(bytearray); 406 | char *coursename = bytearray.data(); 407 | 408 | QString text2 = QInputDialog::getText(NULL, tr("添加课程数据"), tr("请输入该课程的学分")); 409 | if(text2 == NULL) 410 | return; 411 | QByteArray bytearray2 = text2.toLocal8Bit(); 412 | char *coursescore = bytearray2.data(); 413 | 414 | CourseInfo *p = new CourseInfo; 415 | p->next = NULL; 416 | p->score = atoi(coursescore); 417 | strcpy(p->name, coursename); 418 | if(Course.add(p)) 419 | QMessageBox::information(NULL, "添加结果", "添加成功", QMessageBox::Ok, QMessageBox::Ok); 420 | else 421 | QMessageBox::information(NULL, "添加结果", "添加失败-课程重复", QMessageBox::Ok, QMessageBox::Ok); 422 | MainWindow::display_course_info(); 423 | MainWindow::display_choose_info(); 424 | } 425 | 426 | //============ChooseInfos 427 | void MainWindow::on_choose_class_triggered() 428 | { 429 | QString text = QInputDialog::getText(NULL, tr("添加选课数据"), tr("请输入学号")); 430 | if(text == NULL) 431 | return; 432 | QByteArray bytearray = text.toLocal8Bit(); 433 | bytearray = AnsiToUtf8(bytearray); 434 | char *stuid = bytearray.data(); 435 | 436 | QString text2 = QInputDialog::getText(NULL, tr("添加选课数据"), tr("请输入课程名")); 437 | if(text2 == NULL) 438 | return; 439 | QByteArray bytearray2 = text2.toLocal8Bit(); 440 | bytearray2 = AnsiToUtf8(bytearray2); 441 | char *coursename = bytearray2.data(); 442 | 443 | StuCrsInfo *p = new StuCrsInfo; 444 | p->next = NULL; 445 | strcpy(p->stu, stuid); 446 | strcpy(p->crs, coursename); 447 | CourseInfo *pc = new CourseInfo; 448 | strcpy(pc->name, coursename); 449 | StuInfo *ps = new StuInfo; 450 | strcpy(ps->id, stuid); 451 | if(Student.serh(ps, 1) == NULL) 452 | QMessageBox::information(NULL, "选课结果", "选课失败-学生不存在", QMessageBox::Ok, QMessageBox::Ok); 453 | else if(Course.serh(pc, 0, Course.head) == NULL) 454 | QMessageBox::information(NULL, "选课结果", "选课失败-课程不存在", QMessageBox::Ok, QMessageBox::Ok); 455 | else if(Choose.add(p)) 456 | QMessageBox::information(NULL, "选课结果", "选课成功", QMessageBox::Ok, QMessageBox::Ok); 457 | else 458 | QMessageBox::information(NULL, "选课结果", "选课失败-已选过", QMessageBox::Ok, QMessageBox::Ok); 459 | delete ps; 460 | delete pc; 461 | MainWindow::display_choose_info(); 462 | } 463 | 464 | void MainWindow::on_delete_class_triggered() 465 | { 466 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 467 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 468 | ui->tableWidget_3->selectedItems()); 469 | char stuid[20] = {'\0'}; 470 | char coursename[20] = {'\0'}; 471 | QString text, text2; 472 | if(!items.count() || ui->tabWidget->currentIndex() != 2) 473 | { 474 | text = QInputDialog::getText(NULL, tr("输入退课数据"), tr("请输入学号")); 475 | if(text == NULL) 476 | return; 477 | 478 | text2 = QInputDialog::getText(NULL, tr("输入退课数据"), tr("请输入课程名")); 479 | if(text2 == NULL) 480 | return; 481 | } 482 | else 483 | { 484 | QTableWidgetItem *item=items.at(0); 485 | text = item->text(); 486 | item = items.at(2); 487 | text2 = item->text(); 488 | } 489 | QByteArray bytearray = text.toLocal8Bit(); 490 | bytearray = AnsiToUtf8(bytearray); 491 | strcpy(stuid, bytearray.data()); 492 | QByteArray bytearray2 = text2.toLocal8Bit(); 493 | bytearray2 = AnsiToUtf8(bytearray2); 494 | strcpy(coursename, bytearray2.data()); 495 | 496 | StuCrsInfo *p = new StuCrsInfo; 497 | p->next = NULL; 498 | strcpy(p->stu, stuid); 499 | strcpy(p->crs, coursename); 500 | CourseInfo *pc = new CourseInfo; 501 | strcpy(pc->name, coursename); 502 | StuInfo *ps = new StuInfo; 503 | strcpy(ps->id, stuid); 504 | if(Student.serh(ps, 1) == NULL) 505 | QMessageBox::information(NULL, "退课结果", "退课失败-学生不存在", QMessageBox::Ok, QMessageBox::Ok); 506 | else if(Course.serh(pc, 0, Course.head) == NULL) 507 | QMessageBox::information(NULL, "退课结果", "退课失败-课程不存在", QMessageBox::Ok, QMessageBox::Ok); 508 | else if(Choose.del(p, 2)) 509 | QMessageBox::information(NULL, "退课结果", "退课成功", QMessageBox::Ok, QMessageBox::Ok); 510 | else 511 | QMessageBox::information(NULL, "退课结果", "退课失败-未选课", QMessageBox::Ok, QMessageBox::Ok); 512 | delete p; 513 | delete ps; 514 | delete pc; 515 | MainWindow::display_choose_info(); 516 | } 517 | 518 | void MainWindow::on_choose_read_triggered() 519 | { 520 | QStringList fileNames = QFileDialog::getOpenFileNames(this, "打开文件", ".", ("文本文件(*.txt)")); 521 | if(fileNames.size() == 0) return; 522 | for(int i = 0; i < fileNames.size(); ++i) 523 | { 524 | QByteArray bytearray = fileNames[i].toLocal8Bit(); 525 | char *temp = bytearray.data(); 526 | if(temp == NULL) continue; 527 | Choose.read(temp); 528 | } 529 | char buffer[20]; 530 | itoa(Choose.count, buffer,10); 531 | char output[100]; 532 | strcat(output, "导入完成，当前一共有"); 533 | strcat(output, buffer); 534 | strcat(output, "个数据"); 535 | QMessageBox::information(NULL, "导入完成", output, QMessageBox::Ok, QMessageBox::Ok); 536 | MainWindow::display_choose_info(); 537 | } 538 | 539 | void MainWindow::on_choose_save_triggered() 540 | { 541 | QString fileName = QFileDialog::getOpenFileName(this, "另存为...", ".", ("文本文件(*.txt)")); 542 | if(fileName.length() == 0) return; 543 | QByteArray bytearray = fileName.toLocal8Bit(); 544 | char *temp = bytearray.data(); 545 | Choose.save(temp); 546 | QMessageBox::information(NULL, "保存完成", "保存完成", QMessageBox::Ok, QMessageBox::Ok); 547 | MainWindow::display_choose_info(); 548 | } 549 | 550 | void MainWindow::on_search_stu_triggered() 551 | { 552 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 553 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 554 | ui->tableWidget_3->selectedItems()); 555 | char stuid[20] = {'\0'}; 556 | QString text; 557 | if(!items.count() || ui->tabWidget->currentIndex() == 1) 558 | { 559 | text = QInputDialog::getText(NULL, tr("搜索"), tr("请输入学号")); 560 | } 561 | else 562 | { 563 | QTableWidgetItem *item = (ui->tabWidget->currentIndex() == 0)?items.at(1):items.at(0); 564 | text = item->text(); 565 | } 566 | if(text == NULL) 567 | return; 568 | QByteArray bytearray = text.toLocal8Bit(); 569 | bytearray = AnsiToUtf8(bytearray); 570 | strcpy(stuid, bytearray.data()); 571 | 572 | StuCrsInfo *p = new StuCrsInfo; 573 | strcpy(p->stu, stuid); 574 | p->next = NULL; 575 | 576 | StuInfo *ps = new StuInfo; 577 | strcpy(ps->id, stuid); 578 | ps->next = NULL; 579 | if(Student.serh(ps,1) == NULL) 580 | { 581 | QMessageBox::information(NULL, "搜索完成", "不存在该学生", QMessageBox::Ok, QMessageBox::Ok); 582 | delete ps; 583 | return; 584 | } 585 | delete ps; 586 | p = Choose.serh(p, 3); 587 | char output[1000]; 588 | strcpy(output, "该学生选择的课程有：\n"); 589 | while(p->next != NULL) 590 | { 591 | strcat(output, p->crs); 592 | strcat(output, "\n"); 593 | p = p->next; 594 | } 595 | QMessageBox::information(NULL, "搜索完成", output, QMessageBox::Ok, QMessageBox::Ok); 596 | delete p; 597 | } 598 | 599 | void MainWindow::on_search_class_triggered() 600 | { 601 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 602 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 603 | ui->tableWidget_3->selectedItems()); 604 | char coursename[20] = {'\0'}; 605 | QString text; 606 | if(!items.count() || ui->tabWidget->currentIndex() == 0) 607 | { 608 | text = QInputDialog::getText(NULL, tr("搜索"), tr("请输入课程名")); 609 | } 610 | else 611 | { 612 | QTableWidgetItem *item = (ui->tabWidget->currentIndex() == 1)?items.at(0):items.at(2); 613 | text = item->text(); 614 | } 615 | if(text == NULL) 616 | return; 617 | QByteArray bytearray = text.toLocal8Bit(); 618 | bytearray = AnsiToUtf8(bytearray); 619 | strcpy(coursename, bytearray.data()); 620 | 621 | StuCrsInfo *p = new StuCrsInfo; 622 | strcpy(p->crs, coursename); 623 | p->next = NULL; 624 | 625 | CourseInfo *pc = new CourseInfo; 626 | strcpy(pc->name, coursename); 627 | pc->next = NULL; 628 | if(Course.serh(pc, 0, Course.head) == NULL) 629 | { 630 | QMessageBox::information(NULL, "搜索完成", "不存在该课程", QMessageBox::Ok, QMessageBox::Ok); 631 | delete pc; 632 | return; 633 | } 634 | delete pc; 635 | p = Choose.serh(p, 4); 636 | char output[1000]; 637 | strcpy(output, "选择该课程的学生有：\n"); 638 | while(p->next != NULL) 639 | { 640 | strcat(output, p->stu); 641 | strcat(output, "\n"); 642 | p = p->next; 643 | } 644 | QMessageBox::information(NULL, "搜索完成", output, QMessageBox::Ok, QMessageBox::Ok); 645 | delete p; 646 | } 647 | 648 | void MainWindow::on_add_grade_triggered() 649 | { 650 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 651 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 652 | ui->tableWidget_3->selectedItems()); 653 | QString text, text2; 654 | if(!items.count() || ui->tabWidget->currentIndex() != 2) 655 | { 656 | text = QInputDialog::getText(NULL, tr("添加成绩"), tr("请输入学号")); 657 | text2 = QInputDialog::getText(NULL, tr("添加成绩"), tr("请输入课程名")); 658 | } 659 | else 660 | { 661 | QTableWidgetItem *item = items.at(0); 662 | text = item->text(); 663 | item = items.at(2); 664 | text2 = item->text(); 665 | } 666 | if(text == NULL) 667 | return; 668 | QByteArray bytearray = text.toLocal8Bit(); 669 | bytearray = AnsiToUtf8(bytearray); 670 | char *stuid = bytearray.data(); 671 | if(text2 == NULL) 672 | return; 673 | QByteArray bytearray2 = text2.toLocal8Bit(); 674 | bytearray2 = AnsiToUtf8(bytearray2); 675 | char *coursename = bytearray2.data(); 676 | 677 | QString text3 = QInputDialog::getText(NULL, tr("添加成绩"), tr("请输入成绩")); 678 | if(text3 == NULL) 679 | return; 680 | QByteArray bytearray3 = text3.toLocal8Bit(); 681 | bytearray3 = AnsiToUtf8(bytearray3); 682 | int score = atoi(bytearray3.data()); 683 | 684 | StuCrsInfo *p = new StuCrsInfo; 685 | p->next = NULL; 686 | strcpy(p->stu, stuid); 687 | strcpy(p->crs, coursename); 688 | p->grade = score; 689 | CourseInfo *pc = new CourseInfo; 690 | strcpy(pc->name, coursename); 691 | StuInfo *ps = new StuInfo; 692 | strcpy(ps->id, stuid); 693 | if(Student.serh(ps, 1) == NULL) 694 | QMessageBox::information(NULL, "添加结果", "登记成绩失败-学生不存在", QMessageBox::Ok, QMessageBox::Ok); 695 | else if(Course.serh(pc, 0, Course.head) == NULL) 696 | QMessageBox::information(NULL, "添加结果", "登记成绩失败-课程不存在", QMessageBox::Ok, QMessageBox::Ok); 697 | else if(Choose.addgrade(p)) 698 | QMessageBox::information(NULL, "添加结果", "登记成绩成功", QMessageBox::Ok, QMessageBox::Ok); 699 | else 700 | QMessageBox::information(NULL, "添加结果", "登记成绩失败-未选课", QMessageBox::Ok, QMessageBox::Ok); 701 | delete ps; 702 | delete pc; 703 | MainWindow::display_choose_info(); 704 | } 705 | 706 | void MainWindow::on_del_grade_triggered() 707 | { 708 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 709 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 710 | ui->tableWidget_3->selectedItems()); 711 | QString text, text2; 712 | if(!items.count() || ui->tabWidget->currentIndex() != 2) 713 | { 714 | text = QInputDialog::getText(NULL, tr("删除成绩"), tr("请输入学号")); 715 | text2 = QInputDialog::getText(NULL, tr("删除成绩"), tr("请输入课程名")); 716 | } 717 | else 718 | { 719 | QTableWidgetItem *item = items.at(0); 720 | text = item->text(); 721 | item = items.at(2); 722 | text2 = item->text(); 723 | } 724 | if(text == NULL) 725 | return; 726 | QByteArray bytearray = text.toLocal8Bit(); 727 | bytearray = AnsiToUtf8(bytearray); 728 | char *stuid = bytearray.data(); 729 | if(text2 == NULL) 730 | return; 731 | QByteArray bytearray2 = text2.toLocal8Bit(); 732 | bytearray2 = AnsiToUtf8(bytearray2); 733 | char *coursename = bytearray2.data(); 734 | 735 | StuCrsInfo *p = new StuCrsInfo; 736 | p->next = NULL; 737 | strcpy(p->stu, stuid); 738 | strcpy(p->crs, coursename); 739 | CourseInfo *pc = new CourseInfo; 740 | strcpy(pc->name, coursename); 741 | StuInfo *ps = new StuInfo; 742 | strcpy(ps->id, stuid); 743 | if(Student.serh(ps, 1) == NULL) 744 | QMessageBox::information(NULL, "删除结果", "删除成绩失败-学生不存在", QMessageBox::Ok, QMessageBox::Ok); 745 | else if(Course.serh(pc, 0, Course.head) == NULL) 746 | QMessageBox::information(NULL, "删除结果", "删除成绩失败-课程不存在", QMessageBox::Ok, QMessageBox::Ok); 747 | else if(Choose.delgrade(p)) 748 | QMessageBox::information(NULL, "删除结果", "删除成绩成功", QMessageBox::Ok, QMessageBox::Ok); 749 | else 750 | QMessageBox::information(NULL, "删除结果", "删除成绩失败-未选课", QMessageBox::Ok, QMessageBox::Ok); 751 | delete ps; 752 | delete pc; 753 | MainWindow::display_choose_info(); 754 | } 755 | 756 | void MainWindow::on_caculate_triggered() 757 | { 758 | QListitems = (ui->tabWidget->currentIndex() == 0) ? ui->tableWidget->selectedItems() : 759 | ((ui->tabWidget->currentIndex() == 1) ? ui->tableWidget_2->selectedItems() : 760 | ui->tableWidget_3->selectedItems()); 761 | char stuid[20] = {'\0'}; 762 | QString text; 763 | if(!items.count() || ui->tabWidget->currentIndex() == 1) 764 | { 765 | text = QInputDialog::getText(NULL, tr("计算学分绩"), tr("请输入学号")); 766 | } 767 | else 768 | { 769 | QTableWidgetItem *item = (ui->tabWidget->currentIndex() == 0)?items.at(1):items.at(0); 770 | text = item->text(); 771 | } 772 | if(text == NULL) 773 | return; 774 | QByteArray bytearray = text.toLocal8Bit(); 775 | bytearray = AnsiToUtf8(bytearray); 776 | strcpy(stuid, bytearray.data()); 777 | 778 | StuCrsInfo *p = new StuCrsInfo; 779 | strcpy(p->stu, stuid); 780 | p->next = NULL; 781 | 782 | StuInfo *ps = new StuInfo; 783 | strcpy(ps->id, stuid); 784 | ps->next = NULL; 785 | if(Student.serh(ps,1) == NULL) 786 | { 787 | QMessageBox::information(NULL, "计算学分绩", "不存在该学生", QMessageBox::Ok, QMessageBox::Ok); 788 | delete ps; 789 | return; 790 | } 791 | delete ps; 792 | 793 | p = Choose.serh(p, 3); 794 | 795 | double gpa = 0; 796 | int score_cnt = 0; 797 | while(p->next != NULL) 798 | { 799 | if(p->grade >= 0) 800 | { 801 | CourseInfo *pc = new CourseInfo; 802 | strcpy(pc->name, p->crs); 803 | CourseInfo *tmp = Course.serh(pc, 0, Course.head); 804 | delete pc; 805 | score_cnt += tmp->score; 806 | gpa += (tmp->score * p->grade); 807 | } 808 | p = p->next; 809 | } 810 | if(score_cnt == 0) 811 | gpa = 0; 812 | else 813 | gpa /= (20 * score_cnt); 814 | char output[20]; 815 | sprintf(output, "%lf", gpa); 816 | QMessageBox::information(NULL, "计算完成", output, QMessageBox::Ok, QMessageBox::Ok); 817 | delete p; 818 | 819 | } 820 | -------------------------------------------------------------------------------- /mainwindow.h: -------------------------------------------------------------------------------- 1 | #ifndef MAINWINDOW_H 2 | #define MAINWINDOW_H 3 | 4 | #include 5 | #include 6 | 7 | namespace Ui { 8 | class MainWindow; 9 | } 10 | 11 | class MainWindow : public QMainWindow 12 | { 13 | Q_OBJECT 14 | 15 | public: 16 | explicit MainWindow(QWidget *parent = 0); 17 | ~MainWindow(); 18 | void display_student_info(); 19 | void display_course_info(); 20 | void display_choose_info(); 21 | void contextMenuEvent(QContextMenuEvent *); 22 | 23 | private slots: 24 | void on_stu_read_triggered(); 25 | void on_stu_save_triggered(); 26 | void on_stu_del_triggered(); 27 | void on_stu_add_triggered(); 28 | void on_stu_chg_triggered(); 29 | void on_class_read_triggered(); 30 | void on_class_save_triggered(); 31 | void on_class_del_triggered(); 32 | void on_class_add_triggered(); 33 | void on_choose_class_triggered(); 34 | void on_delete_class_triggered(); 35 | void on_choose_read_triggered(); 36 | void on_choose_save_triggered(); 37 | void on_search_stu_triggered(); 38 | void on_search_class_triggered(); 39 | void on_add_grade_triggered(); 40 | void on_del_grade_triggered(); 41 | void on_caculate_triggered(); 42 | 43 | private: 44 | Ui::MainWindow *ui; 45 | QAction *Act_Stu_Del; 46 | QAction *Act_Stu_Chg; 47 | QAction *Act_Stu_Add; 48 | QAction *Act_Crs_Del; 49 | QAction *Act_Crs_Add; 50 | QAction *Act_Cho_Del; 51 | QAction *Act_Cho_Add; 52 | QAction *Act_Srh_Stu; 53 | QAction *Act_Srh_Crs; 54 | QAction *Act_ADDGRADE; 55 | QAction *Act_DELGRADE; 56 | QAction *Act_Calc; 57 | }; 58 | 59 | #endif // MAINWINDOW_H 60 | -------------------------------------------------------------------------------- /mainwindow.ui: -------------------------------------------------------------------------------- 1 | 2 | 3 | MainWindow 4 | 5 | 6 | 7 | 0 8 | 0 9 | 547 10 | 348 11 | 12 | 13 | 14 | 学生信息管理系统 15 | 16 | 17 | 18 | 19 | 20 | 0 21 | 0 22 | 551 23 | 321 24 | 25 | 26 | 27 | 0 28 | 29 | 30 | 31 | 学生信息 32 | 33 | 34 | 35 | 36 | 10 37 | 10 38 | 511 39 | 251 40 | 41 | 42 | 43 | QAbstractItemView::NoEditTriggers 44 | 45 | 46 | QAbstractItemView::SingleSelection 47 | 48 | 49 | QAbstractItemView::SelectRows 50 | 51 | 52 | true 53 | 54 | 55 | 240 56 | 57 | 58 | 25 59 | 60 | 61 | 62 | 姓名 63 | 64 | 65 | 66 | 67 | 学号 68 | 69 | 70 | 71 | 72 | 73 | 74 | 课程信息 75 | 76 | 77 | 78 | 79 | 10 80 | 10 81 | 511 82 | 251 83 | 84 | 85 | 86 | QAbstractItemView::NoEditTriggers 87 | 88 | 89 | QAbstractItemView::SingleSelection 90 | 91 | 92 | QAbstractItemView::SelectRows 93 | 94 | 95 | true 96 | 97 | 98 | 160 99 | 100 | 101 | 102 | 课程名 103 | 104 | 105 | 106 | 107 | 学分 108 | 109 | 110 | 111 | 112 | 类型 113 | 114 | 115 | 116 | 117 | 118 | 119 | 选课信息 120 | 121 | 122 | 123 | 124 | 10 125 | 10 126 | 511 127 | 251 128 | 129 | 130 | 131 | QAbstractItemView::NoEditTriggers 132 | 133 | 134 | QAbstractItemView::SingleSelection 135 | 136 | 137 | QAbstractItemView::SelectRows 138 | 139 | 140 | true 141 | 142 | 143 | 96 144 | 145 | 146 | 25 147 | 148 | 149 | 150 | 学号 151 | 152 | 153 | 154 | 155 | 姓名 156 | 157 | 158 | 159 | 160 | 所选课程 161 | 162 | 163 | 164 | 165 | 学分 166 | 167 | 168 | 169 | 170 | 成绩 171 | 172 | 173 | 174 | 175 | 176 | 177 | 178 | 179 | 180 | 0 181 | 0 182 | 547 183 | 23 184 | 185 | 186 | 187 | 188 | 学生管理 189 | 190 | 191 | 192 | 193 | 194 | 195 | 196 | 197 | 198 | 199 | 200 | 201 | 课程管理 202 | 203 | 204 | 205 | 206 | 207 | 208 | 209 | 210 | 211 | 选课管理 212 | 213 | 214 | 215 | 216 | 217 | 218 | 219 | 220 | 221 | 222 | 223 | 224 | 225 | 226 | 227 | 228 | 229 | 230 | 231 | 读取文件 232 | 233 | 234 | 读取文件 235 | 236 | 237 | O 238 | 239 | 240 | 241 | 242 | 保存为 243 | 244 | 245 | 保存到文件中 246 | 247 | 248 | S 249 | 250 | 251 | 252 | 253 | 删除信息 254 | 255 | 256 | 手动删除学生信息 257 | 258 | 259 | D 260 | 261 | 262 | 263 | 264 | 添加信息 265 | 266 | 267 | 手动添加学生信息 268 | 269 | 270 | A 271 | 272 | 273 | 274 | 275 | 读取文件 276 | 277 | 278 | 读取文件 279 | 280 | 281 | O 282 | 283 | 284 | 285 | 286 | 保存为 287 | 288 | 289 | 保存到文件中 290 | 291 | 292 | S 293 | 294 | 295 | 296 | 297 | 删除课程 298 | 299 | 300 | 手动删除课程信息 301 | 302 | 303 | D 304 | 305 | 306 | 307 | 308 | 添加课程 309 | 310 | 311 | 手动添加课程信息 312 | 313 | 314 | A 315 | 316 | 317 | 318 | 319 | 修改信息 320 | 321 | 322 | 修改学生信息 323 | 324 | 325 | M 326 | 327 | 328 | 329 | 330 | 选择课程 331 | 332 | 333 | C 334 | 335 | 336 | 337 | 338 | 退选课程 339 | 340 | 341 | D 342 | 343 | 344 | 345 | 346 | 查询单个学生 347 | 348 | 349 | B 350 | 351 | 352 | 353 | 354 | 查询单个课程 355 | 356 | 357 | A 358 | 359 | 360 | 361 | 362 | 读取文件 363 | 364 | 365 | O 366 | 367 | 368 | 369 | 370 | 保存为 371 | 372 | 373 | S 374 | 375 | 376 | 377 | 378 | 添加成绩 379 | 380 | 381 | 382 | 383 | 删除成绩 384 | 385 | 386 | 387 | 388 | 计算学分绩 389 | 390 | 391 | 392 | 393 | 394 | 395 | 396 | -------------------------------------------------------------------------------- /stu.txt: -------------------------------------------------------------------------------- 1 | bob 10000 2 | alice 10001 3 | 赵六 10002 4 | 王五 10003 5 | 李四 10004 6 | 张三 10005 7 | -------------------------------------------------------------------------------- /student.cpp: -------------------------------------------------------------------------------- 1 | #include "student.h" 2 | #include 3 | #include 4 | #include 5 | student::student() 6 | { 7 | student::count = 0; 8 | student::head = NULL; 9 | } 10 | 11 | student::~student() 12 | { 13 | 14 | } 15 | 16 | bool student::read(const char *filename) 17 | { 18 | FILE *fp = fopen(filename, "r"); 19 | if(fp == NULL) 20 | return 0; 21 | char ch; 22 | int i = 0; 23 | bool mode = 0; 24 | StuInfo *p = new StuInfo; 25 | p->next = NULL; 26 | while((ch = fgetc(fp)) != EOF) 27 | { 28 | if(mode == 0 && ch != ' ' && ch != '\n') 29 | p->name[i++]=ch; 30 | else if(mode == 1 && ch != ' ' && ch != '\n') 31 | p->id[i++] = ch; 32 | else if(ch == '\n') 33 | { 34 | p->id[i] = '\0'; 35 | i = 0; 36 | mode = 0; 37 | StuInfo *point; 38 | if((point = student::serh(p, 1)) != NULL) 39 | { 40 | strcpy(point->name, p->name); 41 | } 42 | else 43 | { 44 | if(student::head != NULL) 45 | p->next = student::head; 46 | student::head = p; 47 | ++student::count; 48 | } 49 | p = new StuInfo; 50 | p->next = NULL; 51 | } 52 | else if(ch == ' ') 53 | { 54 | p->name[i] = '\0'; 55 | i = 0; 56 | mode = 1; 57 | } 58 | } 59 | fclose(fp); 60 | return 1; 61 | } 62 | 63 | /* 64 | //when read Chinese from a unicode file 65 | bool student::read(const char *filename) 66 | { 67 | QFile file(filename); 68 | file.open(QIODevice::ReadOnly | QIODevice::Text); 69 | while (!file.atEnd()) 70 | { 71 | QByteArray line = file.readLine(); 72 | char *info = line.data(); 73 | 74 | if(strcmp("", info) == 0) 75 | break; 76 | int flag = 0; 77 | char name[20], id[20]; 78 | for(int i = 0; i < 20; ++i) 79 | { 80 | name[i] = '\0'; 81 | id[i] = '\0'; 82 | } 83 | for(int i = 0; i < (int)strlen(info); ++i) 84 | if(flag == 0 && info[i] != ' ' && info[i] != '\n') 85 | name[i] = info[i]; 86 | else if(flag != 0 && info[i] != ' ' && info[i] != '\n') 87 | id[i - flag] = info[i]; 88 | else if(info[i] == ' ') 89 | flag = i+1; 90 | else if(info[i] == '\n') 91 | break; 92 | StuInfo *p = new StuInfo; 93 | p->next = NULL; 94 | strcpy(p->id, id); 95 | strcpy(p->name, name); 96 | StuInfo *point; 97 | if((point = student::serh(p, 1)) != NULL) 98 | { 99 | strcpy(point->name, p->name); 100 | } 101 | else 102 | { 103 | if(student::head != NULL) 104 | p->next = head; 105 | head = p; 106 | ++student::count; 107 | } 108 | } 109 | file.close(); 110 | return 1; 111 | } 112 | */ 113 | 114 | bool student::save(const char *filename) 115 | { 116 | StuInfo *p = student::head; 117 | FILE *fp = fopen(filename, "w"); 118 | while(p != NULL) 119 | { 120 | fprintf(fp, p->name); 121 | fprintf(fp, " "); 122 | fprintf(fp, p->id); 123 | fprintf(fp, "\n"); 124 | p = p->next; 125 | } 126 | fclose(fp); 127 | return 1; 128 | } 129 | 130 | bool student::add(StuInfo *info) 131 | { 132 | if(!(student::serh(info, 1) == NULL)) 133 | return 0; 134 | student::count += 1; 135 | info->next = student::head; 136 | student::head = info; 137 | return 1; 138 | } 139 | 140 | bool student::del(StuInfo *info, bool type) 141 | { 142 | StuInfo *point; 143 | StuInfo *p = student::head; 144 | if((point = student::serh(info, type)) == NULL) 145 | return 0; 146 | student::count -= 1; 147 | if(p == point) 148 | { 149 | student::head = student::head->next; 150 | return 1; 151 | } 152 | while(p->next != NULL) 153 | if(p->next == point) 154 | break; 155 | else 156 | p = p->next; 157 | p->next = p->next->next; 158 | return 1; 159 | } 160 | 161 | bool student::chg(StuInfo *info, bool type) 162 | { 163 | StuInfo *point; 164 | if((point = student::serh(info, 1)) == NULL) 165 | return 0; 166 | if(type == 0) 167 | strcpy(point->name, info->name); 168 | else if(type == 1) 169 | strcpy(point->id, info->id); 170 | return 1; 171 | } 172 | 173 | StuInfo *student::serh(StuInfo *info, int type) 174 | { 175 | StuInfo *p = student::head; 176 | while(p != NULL) 177 | { 178 | if(type == 0 && strcmp(info->name, p->name) == 0) 179 | return p; 180 | else if(type == 1 && strcmp(info->id, p->id) == 0) 181 | return p; 182 | p = p->next; 183 | } 184 | return NULL; 185 | } 186 | -------------------------------------------------------------------------------- /student.h: -------------------------------------------------------------------------------- 1 | #ifndef STUDENT_H 2 | #define STUDENT_H 3 | 4 | #define STU_INFO_SIZE 20 5 | struct StuInfo{ 6 | char name[STU_INFO_SIZE]; 7 | char id[STU_INFO_SIZE]; 8 | StuInfo *next; 9 | }; 10 | 11 | class student{ 12 | public: 13 | student(); 14 | ~student(); 15 | int count; 16 | StuInfo *head; 17 | bool read(const char *); 18 | bool save(const char *); 19 | StuInfo *serh(StuInfo *, int); 20 | bool add(StuInfo *); 21 | bool del(StuInfo *, bool); 22 | bool chg(StuInfo *, bool); 23 | }; 24 | 25 | #endif // STUDENT_H 26 | --------------------------------------------------------------------------------