学生选课管理系统(全源代码-Linux环境).doc

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//*********************************************************

//list.h文件
#ifndef _LIST_H
#define _LIST_H

#define _INLINE_ static inline

struct list_head {
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//*************************************************************
//*********************************************************

//list.h文件
#ifndef _LIST_H
#define _LIST_H

#define _INLINE_ static inline

struct list_head {
struct list_head *next, *prev;
};

#define LIST_HEAD_INIT(name) {&(name), &(name)}

#define LIST_HEAD(name) \
struct list_head name = LIST_HEAD_INIT(name)

#define INIT_LIST_HEAD(ptr) do {\
(ptr)->next = (ptr); (ptr)->prev = (ptr); \
} while (0)

_INLINE_ void __list_add(struct list_head *add,
struct list_head *prev,
struct list_head *next)
{
next->prev = add;
add->next = next;
add->prev = prev;
prev->next = add;
}

_INLINE_ void list_add(struct list_head *add, struct list_head *head) {
__list_add(add, head, head->next);
}

_INLINE_ void list_add_tail(struct list_head *add, struct list_head *head)
{
__list_add(add, head->prev, head);
}

_INLINE_ void __list_del(struct list_head *prev, struct list_head *next)
{
next->prev = prev;
prev->next = next;
}

_INLINE_ void list_del(struct list_head *entry)
{
__list_del(entry->prev, entry->next);
}

_INLINE_ void list_del_init(struct list_head *entry)
{
__list_del(entry->prev, entry->next);
INIT_LIST_HEAD(entry);
}

_INLINE_ int list_empty(struct list_head *head)
{
return head->next == head;
}

_INLINE_ void list_splice(struct list_head *list, struct list_head *head)
{
struct list_head *first = list->next;

if (first != list) {
struct list_head *last = list->prev;
struct list_head *at = head->next;

first->prev = head;
head->next = first;

last->next = at;
at->prev = last;
}
}

#define list_entry(ptr, type, member) \
((type *)((char *)(ptr) - (unsigned long)(&((type *)0)->member)))

#define list_for_each(pos, head) \
for (pos = (head)->next; pos != (head); pos = pos->next)

#define list_for_each_safe(pos, pnext, head) \
for (pos = (head)->next, pnext = pos->next; pos != (head); \
pos = pnext, pnext = pos->next)

#undef _INLINE_
#endif

//** ********************************************************************8
//***********************************************************************
//** **头文件head.h
#ifndef _HEAD_H_
#define _HEAD_H_
#include<string.h>
#include"list.h"
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define Y 'y'
#define N 'n'
#define A_FLAG 'a'
#define S_FLAG 's'
#define T_FLAG 't'

extern struct list_head stu; //
extern struct list_head tec; //

//科目信息
typedef struct subject_info
{
float SUB_notes[3]; //科目成绩
int SUB_csscore; //科目学分
char SUB_csname[32]; //科目名称
struct list_head list;
}SUB;

//学生信息
typedef struct STU_info
{
float STU_totalscore; //总分
int STU_id; //学号
int STU_age; //年龄
int STU_grade; //年级
int STU_place; //名次
char STU_name[32]; //姓名
char STU_psword[32]; //密码
SUB subject[3];
struct list_head list;
}STU;

//教师信息:
typedef struct TCH_info
{
int TCH_id; //工号
char TCH_name[32]; //姓名
char TCH_psword[32]; //密码
SUB subject[1];
struct list_head list;
}TEC;

//管理员信息
typedef struct ADM_info
{
char ADM_usename[8];
char ADM_psword[6];

}ADM;
ADM use[1];

void gettime(); //获取当前时间
void main_menu(); //主菜单
void stu_login(); //学生登录
void openf (char *filename); //判断文件是否存在
void tec_login(); //老师登录
void adm_login(); //管理员登录
void adm_nextmenu(); //管理员2级菜单
void a_updt_stuinfo(); //操作学生信息
void a_updt_tecinfo(); //操作老师信息
void a_updt_myinfo(); //操作管理员自身信息
void a_add_stuinfo(); //添加学生信息
void a_add_tecinfo(); //添加老师信息
void a_mdify_stuinfo(); //修改学生信息
void a_del_info(char flag); //删除信息
void a_mdify_tecinfo(); //修改老师信息
void a_seek_stuinfo(); //查找学生信息
void a_seek_tecinfo(); //查找老师信息
void show (char flag); //显示信息
void save (char flag,char system); //保存信息
void check(char flag); //验证密码
void commom(); //公用函数集合
void a_show(char flag); //显示信息
void a_seek_info(char flag); //查找信息
void a_mdify_info(char flag); //修改学生或老师信息
void stu_nextmenu(int tmpid); //学生菜单
void tec_nextmenu(int tmpid); //老师菜单
void s_show_myinfo(int tmpid); //学生显示自己信息
void t_show_myinfo(int tmpid); //教师显示自己信息
void s_updt_myinfo(int tmpid); //学生更新自己信息
void s_select_subject(int tmpid); //学生选课
void t_updt_stuinfo(int tmpid); //教授更新自己信息
void t_updt_myinfo(int tmpid); //教授显示自己信息
void readf(); //从文件中读取信息
void stu_sort();
float ave (float core[3]);
float (*f)(float core[3]);
int inputpsword(char *pass);
void a_chpsword();
#endif
//*************************************************************************
//***********************************************************************

//入口main函数
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<time.h>
#include"head.h"

LIST_HEAD(stu);
LIST_HEAD(tec);

int main()
{
readf();
system("clear");
printf("\t\t\t* *\t\t*\n\
* *\t\t* Copyright (c) 2010,易嵌教育\n\
* *\t\t* All rights reserved.\n\
* *\t\t* \n\
* *\t\t* 软件名称：学生选课管理系统\n\
* *\t\t* 摘 要:\n\
* *\t\t* \n\
* *\t\t* 当前版本：1.1\n\
* *\t\t* 作 者：关仁杰\n\
* *\t\t* 完成日期：2010年8月2日\n\
* *\t\t*\n");

//void delay(unsinged int)
sleep(2);

main_menu();

return 0;
}

void main_menu()
{
int ch;
char hc;

system("clear");
gettime();

printf("\t\t\t== 学生信息管理系统 ==\n\n");
printf("\t\t###############################################\n");
printf("\t\t== ＊ 欢迎使用本系统\a ＊ ==\n");
printf("\t\t###############################################\n\n");

printf("\t\t++++++++++++++++++++++++++++++++++++++++++++++++++\n");
printf("\t\t== 1.学生 ==\n");
printf("\t\t== 2.教师 ==\n");
printf("\t\t== 3.管理员 ==\n");
printf("\t\t== 4.退出 ==\n");
printf("\t\t++++++++++++++++++++++++++++++++++++++++++++++++++\n");

printf("请输入您选择的序号：\n");
scanf("%d",&ch);

switch(ch)
{
case 1:
printf("您的身份是学生！\n请登录：\n");
gettime();
openf("student.txt");
check(S_FLAG);

break;
case 2:
printf("您的身份是教师！\n请登录：\n");
gettime();

openf("teacher.txt");
check(T_FLAG);

break;
case 3:
printf("您的身份是管理员！\n请登录\n");
gettime();
adm_login();
break;

case 4:

printf("\n");
printf("\a\a\a您已经保存相应的数据了吗？(y or n)\n");
getchar();
scanf("%c",&hc);
if((hc=='y')||(hc=='Y'))
{
printf("谢谢您使用本系统，如有需要请联系：QQ：……\n");
printf("请按Enter键退出！\n");
getchar();
getchar();
exit(0);
}

else if((hc=='n')||(hc=='N'))
{
printf("您还没有保存，系统将为您自动保存！\n");
save(S_FLAG,Y);
}

break;
default:
printf("您的输入有误，请返回上级菜单！\n");
getchar();
getchar();
main_menu();
}
}

//试读文件，验证是否建立
void openf(char *filename)
{
FILE *fp;
if((fp=fopen(filename,"r"))==NULL)
{
filename=NULL;
printf("对不起！还没有建立相应的信息！\n请于管理员联系！\n");
getchar();getchar();
main_menu();
}

fclose(fp);
}

//管理员登录
void adm_login()
{
char psword[6];
FILE *fp;
int i=0;
if((fp=fopen("psword.txt","r"))==NULL)
{
printf("对不起没有相应的信息，请您建立！\n");
printf("请输入您的用户名(不得多于8个字符）：\n");
scanf("%s",use[0].ADM_usename);
printf("请输入您的密码:\n");
while((psword[i]=getchar())!='\n'||(psword[i]=getchar())!=EOF||i<6)
{
putchar('*');
i++;

}
strcmp(use[0].ADM_psword,psword);

save(A_FLAG,N);//save the info

main_menu();
}

else
{
check(A_FLAG);
}
fclose(fp);
}

//****************************************************************
//****************************************************************

//************************************
//管理员相关函数
#ifndef _ADM_nextmenu_c
#define _ADM_nextmenu_c
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include"head.h"

struct list_head *postion;

void adm_nextmenu()
{
int ch;
system("clear");
gettime();

printf("\t\t\t\t****************\n");
printf("\n\n\t\t###################################\n");
printf("\t\t== 1.更改学生信息 ==\n");
printf("\t\t== 2.更改老师信息 ==\n");
printf("\t\t== 3.更改自己信息 ==\n");
printf("\t\t== 4.返回主菜单 ==\n");
printf("\t\t###################################\n\n");
printf("请输入您选择的代号：");
scanf("%d",&ch);
switch(ch)
{
case 1:a_updt_stuinfo();
break;
case 2: a_updt_tecinfo();
break;
case 3: a_updt_myinfo();
break;
case 4: printf("按Enter键返回主菜单！\n");
getchar();
getchar();
main_menu();
break;
default:printf("error!\n");
getchar();
getchar();
main_menu();
}

}
//update info
void a_updt_stuinfo()
{
int ch;
system("clear");
gettime();

printf("\t\t\t\t****************\n");
printf("\n\n\t\t###################################\n");
printf("\t\t== 1.添加学生信息 ==\n");
printf("\t\t== 2.删除学生信息 ==\n");
printf("\t\t== 3.查找学生信息 ==\n");
printf("\t\t== 4.修改学生信息 ==\n");
printf("\t\t== 5.返回上一级菜单 ==\n");
printf("\t\t###################################\n\n");
printf("请输入您选择的代号：");
scanf("%d",&ch);
switch(ch)
{
case 1: a_add_stuinfo();
break;
case 2: a_del_info(S_FLAG);
break;
case 3: a_seek_stuinfo();
break;
case 4: a_mdify_info(S_FLAG);
break;
case 5: save(S_FLAG,N);
printf("按Enter返回上一级菜单！\n");
getchar();
getchar();
adm_nextmenu();
break;
default:printf("error!\n");
getchar();
getchar();
main_menu();
}
}

//update info
void a_updt_tecinfo()
{
int ch;
system("clear");
gettime();

printf("\t\t\t\t****************\n");
printf("\n\n\t\t###################################\n");
printf("\t\t== 1.添加老师信息 ==\n");
printf("\t\t== 2.删除老师信息 ==\n");
printf("\t\t== 3.查找老师信息 ==\n");
printf("\t\t== 4.修改老师信息 ==\n");
printf("\t\t== 5.返回上一级菜单 ==\n");
printf("\t\t###################################\n\n");
printf("请输入您选择的代号：");
scanf("%d",&ch);
switch(ch)
{
case 1: a_add_tecinfo();
break;
case 2: a_del_info(T_FLAG);
break;
case 3: a_seek_tecinfo();
break;
case 4: a_mdify_info(T_FLAG);
break;
case 5: save(T_FLAG,N);
printf("按Enter返回上一级菜单！\n");
getchar();
getchar();
adm_nextmenu();
break;
default:printf("error!\n");
getchar();
getchar();
main_menu();
}
}

//change psword for adm
void a_updt_myinfo()
{
int ch;
system("clear");
gettime();

printf("\t\t\t\t****************\n");
printf("\n\n\t\t###################################\n");
printf("\t\t== 1. 修改密码 ==\n");
printf("\t\t== ==== ==\n");
printf("\t\t== ==== ==\n");
printf("\t\t== 2. 返回上一级 ==\n");
printf("\t\t== 3.返回主菜单 ==\n");
printf("\t\t###################################\n\n");
printf("请输入您选择的代号：");
scanf("%d",&ch);
switch(ch)
{
case 1:
a_chpsword();
gettime();
break;
case 2:
printf("按Enter键返回上一级菜单！\n");
getchar();getchar();
adm_nextmenu();
break;
case 3:
printf("按Enter返回主菜单！\n");
getchar();
getchar();
main_menu();
break;
default:
printf("error!\n");
getchar();
getchar();
main_menu();
}
}

void a_add_stuinfo()
{
gettime();
STU *stud;
int i = 0;
int stu_nu = 0;
FILE *fp=NULL;
int j=0;

printf("您要创建多少个学生的信息：\n");
scanf("%d",&stu_nu);

while(i<stu_nu)
{
stud=(STU*)malloc(sizeof(STU));

strcpy(stud->STU_psword,"000");//初始密码为000
for(j=0;j<3;j++)
{
strcpy((stud->subject[i].SUB_csname),"");
(stud->subject[i]).SUB_csscore=0;
(stud->subject[i]).SUB_notes[i]=0.0;
}

printf("输入第%d个学生的信息：\n",i+1);
printf("学生姓名:\n");
scanf("%s",stud->STU_name);
printf("学号：\n");
scanf("%d",&stud->STU_id);
printf("年龄：\n");
scanf("%d",&stud->STU_age);
printf("年级：\n");
scanf("%d",&stud->STU_grade);

i++;
list_add(&(stud->list),&stu);
}

stu_sort();
show(S_FLAG);

}

void a_add_tecinfo()
{
gettime();

TEC *tech;
TEC *point=NULL;
int i = 0;
int tech_nu = 0;
FILE *fp=NULL;

printf("您要创建多少个老师的信息：\n");
scanf("%d",&tech_nu);

while(i<tech_nu)
{

tech=(TEC*)malloc(sizeof(TEC));
strcpy(tech->TCH_psword,"000");//初始密码为000

printf("输入第%d个老师的信息：\n",i+1);
printf("姓名:\n");
scanf("%s",tech->TCH_name);
printf("工号：\n");
scanf("%d",&tech->TCH_id);
printf("教师所授科目：\n");
scanf("%s",&tech->subject[0]);
i++;
list_add(&(tech->list),&tec);
}

show(T_FLAG);
}

void a_seek_stuinfo()
{
int ch;
struct list_head *postion=NULL;
STU *spoint;
system("clear");
gettime();

printf("\t\t##########################################################\n");
printf("\t\t== 1. 按学号或姓名查找 ==\n");
printf("\t\t== 2.显示所有学生信息 ==\n");
printf("\t\t== 3.返回上一级菜单 ==\n");
printf("\t\t== 4.返回主菜单 ==\n");
printf("\t\t###########################################################\n");
printf("请输入您选择的序号：\n");
scanf("%d",&ch);
switch(ch)
{
case 1 : a_seek_info(S_FLAG);
break;
case 2 :show(S_FLAG);

break;
case 3 : printf("按Enter键返回上一级！\n");
getchar();getchar();
a_updt_stuinfo();
break;
case 4 : printf("按Enter 主菜单！\n");
getchar();getchar();
main_menu();
break;
default : printf("error!");
getchar();
main_menu();
}
}

void a_seek_tecinfo()
{
int ch;

system("clear");
gettime();

printf("\t\t################################################\n");
printf("\t\t== 1. 按工号