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632 lines (630 loc) · 20 KB
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Copy pathglobal.cpp
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632 lines (630 loc) · 20 KB
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/*****************************
*文件名：global.cpp
*****************************/
#include<iostream>
#include<conio.h>
#include<fstream>
#include<windows.h>
#include<stdlib.h>
#include<string>
#include"global.h"
/*** 函数HideCursor(int):光标定位 ***/
void gotoxy(int x, int y){
COORD c;
c.X = x - 1;
c.Y = y - 1;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), c);
}
/*** 函数HideCursor(int):光标隐藏 ***/
void HideCursor(int mark){
CONSOLE_CURSOR_INFO cursor_info = { 1, mark };
SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cursor_info);
}
/*** 函数welcome():主界面 ***/
void menu(void){
char ch;
while (1){
system("cls");
cout << "◎★★★★【欢迎进入学生选课系统】★★★★◎\n";
cout << "* *\n";
cout << "* 0 退出系统 *\n";
cout << "* 1 注册 *\n";
cout << "* 2 教师端 *\n";
cout << "* 3 学生端 *\n";
cout << "* *\n";
cout << "********************************************\n";
ch = getch();
if (ch == '0') break;
else if (ch == '1') regis();
else if (ch == '2') login('1');
else if (ch == '3') login('0');
}
return;
}
/*** 函数regis():为老师或学生注册账号 ***/
void regis(){
system("cls");
char ch, type;
user newid;
Teacher newtea;
Student newstu;
printf("◎ ★★★★★★★★★★★【注册】★★★★★★★★★★★ ◎\n");
printf("* 接下来请选择您的身份，并输入用户名和密码 *\n");
printf("* 用户名和密码不超过20个字符 *\n");
printf("*=======================================================*\n");
printf("* 选择您的身份：1(教师) 0(学生) *\n"); //line 5
printf("* *\n"); //line 6
printf("* *\n"); //line 7
printf("* *\n"); //line 8
printf("* *\n"); //line 9
printf("* *\n"); //line 10
printf("*=======================================================*\n");
printf("* *\n"); //line 12
printf("* *\n"); //line 13
printf("*********************************************************\n");
HideCursor(0);
while (1) {
ch = getch();
if (ch == '1' || ch == '0') { newid.type = ch;break; }
}
type = ch;
HideCursor(1);
gotoxy(11,6);
if (ch == '1')printf("输入您的工号：");
else printf("输入您的学号：");
while (1){
HideCursor(1);
scanf("%s", &newid.username);
if (ch == '0') strcpy(newstu.Id, newid.username);
if (ch == '1') strcpy(newtea.Id, newid.username);
if (checkUser(newid.username)) {
gotoxy(16,7);
printf(" 账号已存在！");
HideCursor(0);
Sleep(1000);
gotoxy(16,7);
printf(" ");
gotoxy(25,6);
printf(" ");
gotoxy(25,6);
}
else break;
}
gotoxy(11,7);
printf(" ");
gotoxy(11,7);
printf("输入您的密码：");
scanf("%s", &newid.pw);
if (ch == '1') {
strcpy(newtea.pw, newid.pw);
gotoxy(11,8);
printf("输入您的姓名：");
scanf("%s", &newtea.Name);
gotoxy(11,9);
printf("输入您的专业：");
scanf("%s", &newtea.major);
gotoxy(11,10);
printf("输入您的职称：");
scanf("%s", &newtea.title);
}
if (ch == '0') {
strcpy(newstu.pw, newid.pw);
gotoxy(11,8);
printf("输入您的姓名：");
scanf("%s", &newstu.Name);
gotoxy(11,9);
printf("输入您的专业：");
scanf("%s", &newstu.major);
}
HideCursor(0);
gotoxy(13,12);
printf("请确认您的输入：1(确认) 0(取消)");
while (1) {
char ch = getch();
if (ch == '1'){
ofstream fout("users.txt", ios_base::app | ios_base::out);
fout << newid.type << ' ' << newid.username << ' ' << newid.pw << "\n";
if (type == '0'){
fout.clear();
fout.close();
fout.open("students.txt", ios_base::app | ios_base::out);
fout << newstu.Id << ' ' << newstu.pw << ' ' << newstu.Name << ' ' << newstu.major << ' ' << 0 << ' ' << '\n';
}
if (type == '1'){
fout.clear();
fout.close();
fout.open("teachers.txt", ios_base::app | ios_base::out);
fout << newtea.Id << ' ' << newtea.pw << ' ' << newtea.Name << ' ' << newtea.major << ' ' << newtea.title << ' ' << '\n';
}
fout.clear();
fout.close();
gotoxy(25,13);
printf("注册成功！\n");
Sleep(1500);
return;
}
else if (ch == '0') {
gotoxy(25,13);
printf("注册失败！");
Sleep(1500);
return;
}
}
}
/*** 函数login(char):登录 ***/
void login(char type){
Teacher tea;
Student stu;
system("cls");
char id[20], pw[30];
printf("◎★★★★★★★★【登录】★★★★★★★◎\n");
printf("* 用户您好！请输入您的账号和密码 *\n");
printf("*=======================================*\n");
printf("* 输入您的账号： *\n");
printf("* 输入您的密码： *\n");
printf("*=======================================*\n");
printf("* *\n");
printf("* *\n");
printf("*****************************************\n");
while (1){
HideCursor(1);
gotoxy(25,4);scanf("%s",id);
gotoxy(25,5);scanf("%s",pw);
if (checkLogin(id, pw, type)) break;
else {
gotoxy(4,7);
printf("账号不存在或账号密码不匹配，是否退出？");
gotoxy(10,8);
printf("1(选择退出) 0(重新输入)");
HideCursor(0);
char ch = getch();
if (ch == '1') return;
else {
gotoxy(10,8);printf(" ");
gotoxy(3,7);printf(" ");
gotoxy(25,5);printf(" ");
gotoxy(25,4);printf(" ");
}
}
}
gotoxy(10,8);
printf("登陆成功！即将进入页面！");
HideCursor(0);
Sleep(1500);
if (type == '1') tea.teacherMenu(id);
else stu.studentMenu(id);
return;
}
/*** 函数checkUser(char*):检查用户是否已存在 ***/
int checkUser(char *s){
ifstream fin("users.txt", ios_base::in);
int isfound = 0;
string tmp;
char t[50];
while (getline(fin, tmp)){
int p1 = tmp.find(' ');
int p2 = tmp.find(' ', p1 + 1);
strcpy(t, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
if (strcmp(t, s) == 0) { isfound = 1;break; }
}
if (fin.eof()) fin.clear();
if (isfound) return 1;
else return 0;
}
/*** 函数checkLogin(char*,char *,char):登录验证 ***/
int checkLogin(char *id, char *pw, char type){
ifstream fin("users.txt", ios_base::in);
int isfound = 0;
string tmp;
char idt[25], pwt[25], typet;
while (getline(fin, tmp)){
typet = tmp[0];
if (typet != type) continue;
int p1 = tmp.find(' ');
int p2 = tmp.find(' ', p1 + 1);
strcpy(idt, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
if (strcmp(idt, id)) continue;
strcpy(pwt, tmp.substr(p2 + 1).c_str());
if (strcmp(pwt, pw)) continue;
else { isfound = 1;break; }
}
if (fin.eof()) fin.clear();
if (isfound) return 1;
else return 0;
}
/*** 函数checkname(char*,char*):找到对应id的姓名 ***/
void checkname(char *id, char *name){
ifstream fin("students.txt", ios_base::in);
string tmp;
int p1, p2;
while (getline(fin, tmp)){
p1 = tmp.find(' ');
if (strcmp(id, tmp.substr(0, p1).c_str()) == 0){
p2 = tmp.find(' ', p1 + 1);
p1 = tmp.find(' ', p2 + 1);
strcpy(name, tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
fin.close();
return;
}
}
}
/*** 函数updateSelp(int,int):更新选课人数信息 ***/
void updateSelp(int courseid, int type){
//type==1 means a new selection while -1 a deletion of courseid
ifstream fin("courses.txt", ios_base::in);
Courses newc[20];
int cnt = 0;
int p1, p2;
string tmp;
while (getline(fin, tmp)){
cnt++;
p1 = tmp.find(' ');
newc[cnt].courseId = atoi(tmp.substr(0, p1).c_str());
p2 = tmp.find(' ', p1 + 1);
strcpy(newc[cnt].courseName, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = tmp.find(' ', p2 + 1);
newc[cnt].allp = atoi(tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
p2 = tmp.find(' ', p1 + 1);
newc[cnt].selectp = atoi(tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
newc[cnt].leftp = atoi(tmp.substr(p2 + 1).c_str());
if (newc[cnt].courseId == courseid){
if (type == 1){
newc[cnt].leftp--;
newc[cnt].selectp++;
}
else{
newc[cnt].leftp++;
newc[cnt].selectp--;
}
}
}
fin.close();
fin.clear();
ofstream fout("courses.txt", ios_base::out | ios_base::trunc);
for (int i = 1;i <= cnt;i++)
fout << newc[i].courseId << ' ' << newc[i].courseName << ' ' << newc[i].allp << ' ' << newc[i].selectp << ' ' << newc[i].leftp << '\n';
fout.close();
fout.clear();
return;
}
/*** 函数checkFull(int):检查选课人数是否已满 ***/
int checkFull(int courseid){
ifstream fin("courses.txt", ios_base::in);
string tmp;
int p1, p2;
while (getline(fin, tmp)){
p1 = tmp.find(' ');
if (atoi(tmp.substr(0, p1).c_str()) == courseid){
p2 = tmp.find(' ', p1 + 1);
p1 = tmp.find(' ', p2 + 1);
p2 = tmp.find(' ', p1 + 1);
if (atoi(tmp.substr(p2 + 1).c_str()) <= 0) return 1;
else return 0;
}
}
}
/*** 函数checkSelCourse(char*,int):检查是否已选过该课程 ***/
int checkSelCourse(char *id, int courseid){
ifstream fin("students.txt", ios_base::in);
string tmp;
char idt[20];
int p1, p2;
while (getline(fin, tmp)){
p1 = tmp.find(' ');
strcpy(idt, tmp.substr(0, p1).c_str());
if (strcmp(idt, id) == 0){
p2 = tmp.find(' ', p1 + 1);
p1 = tmp.find(' ', p2 + 1);
p2 = tmp.find(' ', p1 + 1);
p1 = tmp.find(' ', p2 + 1);
int seln = atoi(tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
for (int i = 1;i <= seln;i++)
{
p2 = tmp.find(' ', p1 + 1);
int cid = atoi(tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
if (cid == courseid) return 1;
p1 = p2;
}
return 0;
}
}
return 0;
}
/*** 函数reviseSelCourse(char*,int,int):修改学生选课信息 ***/
void reviseSelCourse(char *id, int courseid, int type){
updateSelp(courseid, type);
//type==1 means new selection of courseid, while -1 means a new deletion of courseid
ifstream fin("students.txt", ios_base::in);
string tmp;
Student newstu[100];
int p1, p2, cnt = 0;
int sels[100][20];
while (getline(fin, tmp)){
cnt++;
p1 = tmp.find(' ');
strcpy(newstu[cnt].Id, tmp.substr(0, p1).c_str());
p2 = tmp.find(' ', p1 + 1);
strcpy(newstu[cnt].pw, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = tmp.find(' ', p2 + 1);
strcpy(newstu[cnt].Name, tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
p2 = tmp.find(' ', p1 + 1);
strcpy(newstu[cnt].major,tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = tmp.find(' ', p2 + 1);
newstu[cnt].totalSelected = atoi(tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
for (int i = 1;i <= newstu[cnt].totalSelected;i++){
p2 = tmp.find(' ', p1 + 1);
sels[cnt][i] = atoi(tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = p2;
}
if (strcmp(id, newstu[cnt].Id) == 0){
if (type == 1)
sels[cnt][++newstu[cnt].totalSelected] = courseid;
else{
int i = 1, j = 1;
while (i <= newstu[cnt].totalSelected){
if (sels[cnt][i] != courseid) sels[cnt][j] = sels[cnt][i], j++, i++;
else i++;
}
newstu[cnt].totalSelected--;
}
}
}
fin.close();
fin.clear();
ofstream fout("students.txt", ios_base::out | ios_base::trunc);
for (int i = 1;i <= cnt;i++){
fout << newstu[i].Id << ' ' << newstu[i].pw << ' ' << newstu[i].Name << ' ' << newstu[i].major << ' '
<< newstu[i].totalSelected << ' ';
for (int j = 1;j <= newstu[i].totalSelected;j++)
fout << sels[i][j] << ' ';
fout << '\n';
}
fin.close();
fin.clear();
}
/*** 函数checkCourse(char*):检查输入的课程是否已存在 ***/
int checkCourse(char *s){
ifstream fin("courses.txt", ios_base::in);
if (!fin.is_open()) return 0;
string tmp;
int isfound = 0;
char coursename[50];
while (getline(fin, tmp)){
int p1 = tmp.find(' ');
int p2 = tmp.find(' ', p1 + 1);
strcpy(coursename, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
if (strcmp(s, coursename) == 0) { isfound = 1;break; }
else continue;
}
if (isfound) return 1;
else return 0;
}
/*** 函数coursecount():统计当前已添加的课程总数 ***/
int countcourse(){
int cnt = 0;
string tmp;
ifstream fin("courses.txt", ios_base::in);
while (getline(fin, tmp)) cnt++;
fin.close();
fin.clear();
return cnt;
}
/*** 函数deleteinfo(int): 删除学生选课信息 ***/
void deleteinfo(int id){
//查看所有学生信息，对已选课程_id_的学生进行修改
ifstream fin("students.txt", ios_base::in);
string tmp;
Student newstu[100];
int cnt = 0;
int sels[100][20];
while (getline(fin, tmp)){
cnt++;
sels[cnt][0] = 0;
int p1 = tmp.find(' ');
strcpy(newstu[cnt].Id, tmp.substr(0, p1).c_str());
int p2 = tmp.find(' ', p1 + 1);
strcpy(newstu[cnt].pw, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = tmp.find(' ', p2 + 1);
strcpy(newstu[cnt].Name, tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
p2 = tmp.find(' ', p1 + 1);
strcpy(newstu[cnt].major,tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = tmp.find(' ', p2 + 1);
newstu[cnt].totalSelected = atoi(tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
for (int i = 1;i <= newstu[cnt].totalSelected;i++){
p2 = tmp.find(' ', p1 + 1);
int cid = atoi(tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
if (cid == id) sels[cnt][0] = 1;
sels[cnt][i] = cid;
p1 = p2;
}
}
fin.close();
fin.clear();
ofstream fout("students.txt", ios_base::out | ios_base::trunc);
for (int i = 1;i <= cnt;i++){
fout << newstu[i].Id << ' ' << newstu[i].pw << ' ' << newstu[i].Name << ' ' << newstu[i].major << ' '
<< newstu[i].totalSelected - sels[i][0] << ' ';
for (int j = 1;j <= newstu[i].totalSelected;j++){
if (sels[i][j] < id) fout << sels[i][j] << ' ';
else if (sels[i][j] > id) fout << sels[i][j] - 1 << ' ';
}
fout << '\n';
}
fout.close();
fout.clear();
return;
}
/*** 函数deletecourse(int): 删除当前课程 ***/
void deletecourse(int id){
//除了要删除的课程之外全部重新写入
deleteinfo(id);
Courses cs[20];
ifstream fin("courses.txt", ios_base::in);
int cnt = 0;
int idt;
string tmp;
while (getline(fin, tmp)){
int p1 = tmp.find(' ');
idt = atoi(tmp.substr(0, p1).c_str());
if (idt == id) continue;
else{
cnt++;
cs[cnt].courseId = cnt;
int p2 = tmp.find(' ', p1 + 1);
strcpy(cs[cnt].courseName, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = tmp.find(' ', p2 + 1);
cs[cnt].allp = atoi(tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
p2 = tmp.find(' ', p1 + 1);
cs[cnt].selectp = atoi(tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
cs[cnt].leftp = atoi(tmp.substr(p2 + 1).c_str());
}
}
fin.close();
fin.clear();
ofstream fout("courses.txt", ios_base::out | ios_base::trunc);
for (int i = 1;i <= cnt;i++)
fout << cs[i].courseId << ' ' << cs[i].courseName << ' '
<< cs[i].allp << ' ' << cs[i].selectp << ' ' << cs[i].leftp << '\n';
fout.close();
fout.clear();
return;
}
/*** 函数revisecourse(int,char*,int): 修改当前课程 ***/
void revisecourse(int id, char *newname, int newp){
Courses cs[20];
ifstream fin("courses.txt", ios_base::in);
int idt;
int cnt = 0;
string tmp;
while (getline(fin, tmp)){
cnt++;
int p1 = tmp.find(' ');
idt = atoi(tmp.substr(0, p1).c_str());
cs[cnt].courseId = idt;
int p2 = tmp.find(' ', p1 + 1);
strcpy(cs[cnt].courseName, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = tmp.find(' ', p2 + 1);
cs[cnt].allp = atoi(tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
p2 = tmp.find(' ', p1 + 1);
cs[cnt].selectp = atoi(tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
cs[cnt].leftp = atoi(tmp.substr(p2 + 1).c_str());
if (idt == id){
strcpy(cs[cnt].courseName, newname);
cs[cnt].allp = newp;
cs[cnt].leftp = newp - cs[cnt].selectp;
}
}
fin.close();
fin.clear();
ofstream fout("courses.txt", ios_base::out | ios_base::trunc);
for (int i = 1;i <= cnt;i++)
fout << cs[i].courseId << ' ' << cs[i].courseName << ' '
<< cs[i].allp << ' ' << cs[i].selectp << ' ' << cs[i].leftp << '\n';
fout.close();
fout.clear();
return;
}
/*** 函数showcourses():显示当前所有课程信息 ***/
int showcourses(){
printf("◎★★★★★★★★★【课程信息】★★★★★★★★★◎\n");
printf("* 请选择对应课程编号或者按0退出 *\n");
printf("*=================================================*\n");
printf("* --------------------------------------- *\n");
printf("* | 课程编号 | 课程名 | 已选/全部 | *\n");
printf("* --------------------------------------- *\n");
int tot = countcourse();
ifstream fin("courses.txt", ios_base::in);
string tmp;
for (int i = 1;i <= tot;i++){
getline(fin, tmp);
int id, allp, selp;
char name[50];
int p1 = tmp.find(' ');
int p2 = tmp.find(' ', p1 + 1);
id = atoi(tmp.substr(0, p1).c_str());
strcpy(name, tmp.substr(p1, p2 - p1).c_str());
p1 = tmp.find(' ', p2 + 1);
allp = atoi(tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
p2 = tmp.find(' ', p1 + 1);
selp = atoi(tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
printf("* | %-8d | %-14s | %4d/%-4d | *\n", id, name, selp, allp);
printf("* --------------------------------------- *\n");
}
fin.close();
fin.clear();
printf("*=================================================*\n");
printf("* *\n"); //line:8+2*tot;
printf("* *\n"); //line:9+2*tot
printf("* *\n"); //line:10+2*tot
printf("* *\n"); //line:11+2*tot
printf("***************************************************\n");
return tot;
}
/*** 函数viewinfo(int):查看某一课程信息 ***/
void viewinfo(int id)
{
system("cls");
ifstream fin("courses.txt", ios_base::in);
int cnt = 0;
char coursename[50];
string tmp;
while (getline(fin, tmp)){
int p1 = tmp.find(' ');
int idt = atoi(tmp.substr(0, p1).c_str());
if (idt == id){
int p2 = tmp.find(' ', p1 + 1);
strcpy(coursename, tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
break;
}
}
fin.close();
fin.clear();
printf("◎★★★★★★★★★★★★★【课程信息】★★★★★★★★★★★★◎\n");
printf("* %20s的选课情况如下 *\n", coursename);
printf("*===============================================================*\n");
printf("* --------------------------------------------------- *\n");
printf("* |序号| 学号 | 姓名 | 专业 | *\n");
printf("* --------------------------------------------------- *\n");
fin.open("students.txt", ios_base::in);
Student newstu;
while (getline(fin, tmp)){
int p1 = tmp.find(' ');
strcpy(newstu.Id, tmp.substr(0, p1).c_str());
int p2 = tmp.find(' ', p1 + 1);
p1 = tmp.find(' ', p2 + 1);
strcpy(newstu.Name, tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
p2 = tmp.find(' ', p1 + 1);
strcpy(newstu.major,tmp.substr(p1 + 1, p2 - p1 - 1).c_str());
p1 = tmp.find(' ', p2 + 1);
newstu.totalSelected = atoi(tmp.substr(p2 + 1, p1 - p2 - 1).c_str());
if (newstu.totalSelected == 0) continue;
else{
int isfound = 0, q;
for (int i = 1;i <= newstu.totalSelected;i++){
q = tmp.find(' ', p1 + 1);
int sel = atoi(tmp.substr(p1 + 1, q - p1 - 1).c_str());
if (sel == id){
isfound = 1;
break;
}
p1 = q;
}
if (isfound){
cnt++;
printf("* |%-4d|%-12s|%-10s|%-20s| *\n", cnt, newstu.Id, newstu.Name, newstu.major);
printf("* --------------------------------------------------- *\n");
}
}
}
printf("*===============================================================*\n");
printf("* 按任意键返回 *\n");
printf("*****************************************************************\n");
HideCursor(0);
char ch = getch();
return;
}
/*** 主函数 ***/
int main(){
menu();
return 0;
}