学生信息管理系统
include
include
include
include
define N 3
typedef struct SCORE{
char course_name[32];
float score;
}Score;
typedef struct node{
int auth;
char usr_name[32];
char password[18];
int id;
char stu_name[32];
char major[32];
Score s[N];
struct node* next;
}Node;
Nodehead,*last;
int usr_type;
char usr_name[32],password[18];
const charf_name="usr_info.conf";
void load_data(),save_data(),export_data(),check_admin(),add_admin(),login();
void add_student(),search_student(),del(),modify(),modify_password(),logout();
void show_score(),search_course();
void title_win(),msg_win();
int main()
{
int ch;
load_data();
title_win();
check_admin();
loop:
printf("请选择用户类型(1:admin，2:student):");
scanf("%d",&usr_type);
if(usr_type!=1 && usr_type!=2)
{
msg_win("没有该用户类型，请重新输入，1表示admin，2表示student\n");
goto loop;
}
if(usr_type==1)
{
title_win();
login();
while(1)
{
msg_win("用户类型:Admin");
msg_win("1:增加/2:查找/3:删除/4:修改课程成绩/5:修改密码/6:打印/7:保存/8:退出");
printf(">");
scanf("%d",&ch);
switch(ch)
{
case 1:add_student();break;
case 2:search_student();break;
case 3:del();break;
case 4:modify();break;
case 5:modify_password();break;
case 6:export_data();break;
case 7:save_data();break;
case 8:logout();break;
//case 9:add_admin();break;
default:break;
}
getchar();
msg_win("按任意键返回");
getchar();
system("clear");
}
}
else
{
title_win();
login();
while(1)
{
msg_win("用户类型:Student");
msg_win("1：显示成绩/2:搜索课程/3:修改密码/4:退出");
printf(">");
scanf("%d",&ch);
switch(ch)
{
case 1:show_score();break;
case 2:search_course();break;
case 3:modify_password();break;
case 4:logout();break;
default:break;
}
getchar();
msg_win("按任意键返回");
getchar();
system("clear");
}
}
return 0;
}
void load_data()
{
FILE* fp=NULL;
if(!(fp=fopen(f_name,"a")))
{
msg_win("打开文件失败");
return;
}
fclose(fp);
fp=NULL;
if(!(fp=fopen(f_name,"r+")))
{
msg_win("打开文件失败");
return;
}
Node* p;
while(1)
{
p=(Node*)malloc(sizeof(Node));
if(!p) continue;
if(!fread(p,sizeof(Node),1,fp))
break;
if(head==NULL)
{
head=last=p;
head->next=NULL;
}
else
{
last->next=p;
last=p;
last->next=NULL;
}
}
fclose(fp);
fp=NULL;
}
void save_data()
{
FILE* fp=NULL;
if(!(fp=fopen(f_name,"w+")))
{
msg_win("打开文件失败");
return;
}
Node* p;
p=head;
while(p)
{
fwrite(p,sizeof(Node),1,fp);
p=p->next;
}
fclose(fp);
fp=NULL;}
void export_data()
{
FILE* fp;
if(!(fp=fopen("export.log","w+")))
{
msg_win("打开文件失败");
return;
}
Node* p;
int i;
p=head;
while(p)
{
fprintf(fp,"%-2d|%-15s|%-18s|%-15s|%-18d|%-18s|\n",p->auth,p->usr_name,p->password,p->stu_name,p->id,p->major);
for(i=0;i<N;i++)
fprintf(fp,"%s:%-5.1f|",p->s[i].course_name,p->s[i].score);
fprintf(fp,"\n");
p=p->next;
}
fclose(fp);}
void check_admin()
{
Node* p;
p=head;
while(p)
{
if(p->auth==1)
return;
p=p->next;
}
p=(Node*)malloc(sizeof(Node));
p->auth=1;
msg_win("请设置管理员账户");
printf("用户名:");
scanf("%s",p->usr_name);
printf("密码:");
scanf("%s",p->password);
if(head==NULL)
{
head=last=p;
head->next=NULL;
}
else
{
last->next=p;
last=p;
last->next=NULL;
}
msg_win("管理员账户设置成功");
sleep(1);
system("clear");}
/void add_admin()
{
Nodep;
p=(Node*)malloc(sizeof(Node));
p->auth=1;
msg_win("添加管理员账户");
printf("用户名:");
scanf("%s",p->usr_name);
printf("密码:");
scanf("%s",p->password);
if(head==NULL)
{
head=last=p;
head->next=NULL;
}
else
{
last->next=p;
last=p;
last->next=NULL;
}
msg_win("新管理员账户设置成功");}*/
void login()
{
login: system("clear");
msg_win("登录");
printf("用户名:");
scanf("%s",usr_name);
printf("密码:");
scanf("%s",password);
Node* p;
p=head;
while(p)
{
if(!strcmp(p->usr_name,usr_name) && !strcmp(p->password,password) && p->auth==usr_type)
{
msg_win("登录成功");
sleep(1);
system("clear");
return;
}
p=p->next;
}
msg_win("用户名或密码不正确,按任意键重新登录");
getchar();getchar();
goto login;
}
void add_student()
{
Node* p=(Node*)malloc(sizeof(Node));
if(!p) return ;
p->auth=2;
msg_win("添加学生账户");
printf("用户名:");
scanf("%s",p->usr_name);
printf("密码:");
scanf("%s",p->password);
printf("姓名:");
scanf("%s",p->stu_name);
printf("学号:");
scanf("%d",&(p->id));
printf("专业:");
scanf("%s",p->major);
if(head==NULL)
{
head=last=p;
head->next=NULL;
}
else
{
last->next=p;
last=p;
last->next=NULL;
}
msg_win("学生账户设置成功");}
void search_student()
{
msg_win("搜索账户信息");
int stu_id,i;
printf("请输入学号:");
scanf("%d",&stu_id);
Node* p;
p=head;
while(p)
{
if(p->id==stu_id)
{
printf("%d %s %s %s %d %s\n",p->auth,p->usr_name,p->password,p->stu_name,p->id,p->major);
for(i=0;i<N;i++)
printf("%s:%-5.1f",p->s[i].course_name,p->s[i].score);
printf("\n");
return;
}
p=p->next;
}
msg_win("系统中没有该学号");
}
void del()
{
Nodep,q;
int stu_id;
msg_win("删除账户信息");
printf("请输入学号:");
scanf("%d",&stu_id);
p=head;
while(p)
{
if(p->id==stu_id)
{
if(head==p)
head=head->next;
else
q->next=p->next;
free(p);
msg_win("删除成功！");
return;
}
q=p;
p=p->next;
}
msg_win("删除失败！系统中没有该学号");}
void modify()
{
int stu_id,i;
msg_win("修改课程成绩");
printf("请输入学号:");
scanf("%d",&stu_id);
Node* p;
p=head;
while(p)
{
if(p->id==stu_id)
{
for(i=0;i<N;i++)
scanf("%s %f",p->s[i].course_name,&(p->s[i].score));
return;
}
p=p->next;
}
msg_win("系统中没有该学号");}
void modify_password()
{
char temp[18],new_password[18];
msg_win("修改密码");
printf("请输入旧密码:");
scanf("%s",temp);
printf("请输入新密码:");
scanf("%s",new_password);
printf("请确认新密码:");
scanf("%s",password);
Node* p;
p=head;
while(p)
{
if(!strcmp(usr_name,p->usr_name))
{
if(!strcmp(p->password,temp)&& !strcmp(new_password,password))
{
strcpy(password,new_password);
strcpy(p->password,password);
msg_win("密码修改成功");
return;
}
else
{
msg_win("输入有误，自动退出");
return;
}
}
p=p->next;
}
}
void logout()
{
save_data();
msg_win("成功退出");
exit(1);
}
void show_score()
{
int i;
Node* p;
p=head;
msg_win("所有课程成绩");
while(p)
{
if(!strcmp(usr_name,p->usr_name))
{
printf("%s %d %s\n",p->stu_name,p->id,p->major);
for(i=0;i<N;i++)
printf("%s:%-5.1f",p->s[i].course_name,p->s[i].score);
printf("\n");
return;
}
p=p->next;
}
}
void search_course()
{
char course_name[32];
int i;
msg_win("输入要查询的课程");
printf(">");
scanf("%s",course_name);
Node* p;
p=head;
while(p)
{
if(!strcmp(usr_name,p->usr_name))
{
for(i=0;i<N;i++)
{
if(!strcmp(course_name,p->s[i].course_name))
{
printf("%s:%-5.1f\n",p->s[i].course_name,p->s[i].score);
return;
}
}
}
p=p->next;
}
}
char str1[]="学生信息管理系统";
void title_win()
{
int i,M;
M=strlen(str1);
for(i=0;i<M;i++) printf("-");
printf("\n");
printf("%s\n",str1);
for(i=0;i<M;i++) printf("-");
printf("\n");
}
void msg_win(const char* str)
{
int i,M;
M=strlen(str1);
printf("\n");
printf("%s\n",str);
for(i=0;i<M;i++) printf("-");
printf("\n");
}
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