LINUX下的C学生信息管理系统
第一次写，难免会有些紧张/* 软件1304 王京博 版本号 V0.9 时间 2014.6.24*/#include#include#include#include#define SI sizeof(stu)#define PT "^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…
第一次写，难免会有些紧张 ，这是我们的课程设计作业，拉出来分享下。
/*
版本号 V1.0
时间 2014.6.24*/
#include<stdio.h>
#include<stdlib.h>
#include<malloc.h>
#include<string.h>
#define SI sizeof(stu)
#define PT "^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^ ^…^\n"
#define ET "|%-15s|%-14ld|%-9s|%-8d|%-8d|%-14ld|%-6.1f|%-6.1f|%-6.1f|%-6.1f|%6.1f|%6.1f|%6.1f|\n绩点: |%-6.1f|%-6.1f|%-6.1f|%-6.1f|%-6.1f|\n",node->name,node->num,node->sex,node->age,node->bir,node->tel,node->score[0],node->score[1],node->score[2],node->score[3],node->score[4],node->sum,node->ave,node->gpa[0],node->gpa[1],node->gpa[2],node->gpa[3],node->gpa[4]
void clear(void) //清屏函数
{
system("clear");
}
typedef struct s
{
long num; //学号
char name[20]; //姓名
char sex[5]; //性别
int age; //年龄
int bir; //生日
long tel; //电话号码
float score[5]; //五门成绩
float ave; //平均分
float gpa[5]; //绩点
float sum; //总分数
char pass[15];
struct s * next;
}stu;
typedef struct passw
{
long num;
char pass[15];
struct passw *next;
}DI;
stu * creat() //创建链表
{
stu* head,*node,*new_node;
FILE *fp;
fp=fopen("os.txt","w+");
if((fp==NULL))
{
printf("加载失败!\n");
exit(0);
}
head = node = (stu *)malloc(SI);
new_node = (stu *)malloc(SI);
printf("\n|学生姓名 |学号 |姓别 |年龄 |生日 |电话号码 |高数 |英语 |离散 |大物 |C语言:\n");
scanf("%s %ld %s %d %d %ld %f %f %f %f %f",new_node->name,&new_node->num,new_node->sex,&new_node->age,&new_node->bir,&new_node->tel,&new_node->score[0],&new_node->score[1],&new_node->score[2],&new_node->score[3],&new_node->score[4]);
int i;
float sum=0;
for (i=0;i<5;i++)
{
sum+=new_node->score[i];
if (new_node->score[i]<60)
new_node->gpa[i] = 0;
else
new_node->gpa[i] = new_node->score[i]/10-5;
}
new_node->ave = sum/5;
new_node->sum = sum;
while (new_node->num!=0)
{
node->next = new_node;
node = new_node;
new_node = (stu *)malloc(SI);
printf("\n|学生姓名 |学号 |姓别 |年龄 |生日 |电话号码 |高数 |英语 |离散 |大物 |C语言:\n");
scanf("%s %ld %s %d %d %ld %f %f %f %f %f",new_node->name,&new_node->num,new_node->sex,&new_node->age,&new_node->bir,&new_node->tel,&new_node->score[0],&new_node->score[1],&new_node->score[2],&new_node->score[3],&new_node->score[4]);
int i;
float sum=0;
for (i=0;i<5;i++)
{
sum+=new_node->score[i];
if (new_node->score[i]<60)
new_node->gpa[i] = 0;
else
new_node->gpa[i] = new_node->score[i]/10-5;
}
new_node->ave = sum/5;
new_node->sum = sum;
}
node->next = NULL;
free(new_node);
fclose(fp);
return head;
}
void write(stu *head)
{
stu *new_node;
new_node = head->next;
FILE *fp;
if((fp = fopen("os.txt","w+"))==NULL)
{
printf("加载失败!\n");
exit(0);
}
while(new_node!=NULL)
{
fprintf(fp,"%-15s%-14ld%-9s%-8d%-8d%-14ld%-6.1f%-6.1f%-6.1f%-6.1f%-6.1f%-6.1f%-6.1f%-4.1f%-4.1f%-4.1f%-4.1f%-4.1f\n",new_node->name,new_node->num,new_node->sex,new_node->age,new_node->bir,new_node->tel,new_node->score[0],new_node->score[1],new_node->score[2],new_node->score[3],new_node->score[4],new_node->sum,new_node->ave,new_node->gpa[0],new_node->gpa[1],new_node->gpa[2],new_node->gpa[3],new_node->gpa[4]);
new_node = new_node->next;
}
fclose(fp);
}
stu *read(void) //从文件中读取信息并创建链表
{
stu* head,*node,*new_node;
FILE *fp;
fp=fopen("os.txt","r");
if((fp==NULL))
{
printf("加载失败!\n");
exit(0);
}
head = node = (stu *)malloc(SI);
new_node = (stu *)malloc(SI);
fscanf(fp,"%s %ld %s %d %d %ld %f %f %f %f %f %f %f %f %f %f %f %f",new_node->name,&new_node->num,new_node->sex,&new_node->age,&new_node->bir,&new_node->tel,&new_node->score[0],&new_node->score[1],&new_node->score[2],&new_node->score[3],&new_node->score[4],&new_node->sum,&new_node->ave,&new_node->gpa[0],&new_node->gpa[1],&new_node->gpa[2],&new_node->gpa[3],&new_node->gpa[4]);
while(!feof(fp))
{
node->next = new_node;
node = new_node;
new_node = (stu *)malloc(SI);
fscanf(fp,"\n%s %ld %s %d %d %ld %f %f %f %f %f %f %f %f %f %f %f %f",new_node->name,&new_node->num,new_node->sex,&new_node->age,&new_node->bir,&new_node->tel,&new_node->score[0],&new_node->score[1],&new_node->score[2],&new_node->score[3],&new_node->score[4],&new_node->sum,&new_node->ave,&new_node->gpa[0],&new_node->gpa[1],&new_node->gpa[2],&new_node->gpa[3],&new_node->gpa[4]);
}
node->next = NULL;
free(new_node);
fclose(fp);
return(head);
}
stu *findnum(void) //其中num为要查找的学生的学号
{
long num;
printf("查找的学号:");
scanf("%ld",&num);
stu *node;
node = read();
while (node->next!=NULL)
{
node = node->next;
if (node->num == num)
{ printf(PT);
printf(ET);
return node;
}
}
printf("学生信息未找到!\n");
return NULL;
}
stu *findname(void) //其中num为要查找的学生的姓名
{
char name[20];
printf("查找的姓名:");
scanf("%s",name);
stu *node;
node = read();
int cmp;
while (node->next!=NULL)
{
node = node->next;
cmp = strcmp(name,node->name);
if(cmp == 0)
{ printf(PT);
printf(ET);
return node;
}
}
printf("学生信息未找到!\n");
return 0;
}
void find()
{
printf("\t\t\t1.姓名查找.\n\t\t\t2.学号查找.\n\t\t\t0.回到上层.\n");
int i;
scanf("%d",&i);
switch(i)
{
case 1: findname();break;
case 2: findnum();break;
case 3: begin();break;
default :printf("错误!\n");begin();
}
}
stu *deletenum(void)
{
long num;
printf("输入要删除学生的学号:");
scanf("%ld",&num);
stu *head,*node,*no;
head = no = read();
node = no->next;
while(node!=NULL)
{ if(node->num==num)
{
no->next = node->next;
free(node);
printf("删除成功!\n");
write(head);
return head;
}
no = node;
node = node->next;
}
printf("删除失败!\n");
}
stu *deletename(void)
{
char name[20];
printf("输入要删除学生的姓名:");
scanf("%s",name);
stu *head,*node,*no;
head = no = read();
node = no->next;
while(node!=NULL)
{ if(strcmp(node->name,name)==0)
{
no->next = node->next;
free(node);
printf("删除成功!\n");
write(head);
return head;
}
no = node;
node = node->next;
}
printf("删除失败!\n");
}
void delete()
{
printf("\t\t\t1.按学号删除.\n\t\t\t2.按姓名查找.\n\t\t\t0.回到上层.\n");
int i;
scanf("%d",&i);
switch(i)
{
case 1: deletenum();break;
case 2: deletename();break;
case 3: begin();break;
default :printf("错误!\n");begin();
}
}
stu* sortsum()
{
stu *head = read();
stu *p,*q,*pt,*t;
t = (stu *)malloc(SI); // 创建临时结点
t->next = head; // 临时结点作为链表临时头指针
for(p = head; p->next!=NULL; p = p->next)
{
q = p->next;
while(q->next!=NULL)
{
if(p->next->sum < q->next->sum)
{
pt = p->next;
p->next = q->next;
q->next = p->next->next;
p->next->next = pt;
}
else q = q->next;
}
}
head = t->next;
free(t);
write(head);
return head;
}
stu* sortnum()
{
stu *p,*q,*pt,*t,*head;
head = read();
t = (stu *)malloc(SI); //
t->next = head; //
for(p = head; p->next!=NULL; p = p->next)
{
q = p->next;
while(q->next!=NULL)
{
if(p->next->num > q->next->num)
{
pt = p->next;
p->next = q->next;
q->next = p->next->next;
p->next->next = pt;
}
else q = q->next;
}
}
head = t->next;
free(t);
write(head);
}
stu* add(void)
{
DI *fr();
FILE *fp;
if ((fp = fopen("pass.txt","a+"))==NULL)
{
printf("打开文件失败!\n");
exit(0);
}
stu *head,*new_node,*node;
DI *head1;
DI *node1,*new_node1;
head = read();
head1 = fr();
node = head->next;
node1 = head1->next;
while (node1->next!=NULL)
node1 = node1->next;
while(node->next!=NULL)
node = node->next;
new_node = (stu *)malloc(SI);
printf("\n|学生姓名 |学号 |姓别 |年龄 |生日 |电话号码 |高数 |英语 |离散 |大物 |C语言:\n");
scanf("%s %ld %s %d %d %ld %f %f %f %f %f",new_node->name,&new_node->num,new_node->sex,&new_node->age,&new_node->bir,&new_node->tel,&new_node->score[0],&new_node->score[1],&new_node->score[2],&new_node->score[3],&new_node->score[4]);
int i;
float sum=0;
for (i=0;i<5;i++)
{
sum+=new_node->score[i];
if (new_node->score[i]<60)
new_node->gpa[i] = 0;
else
new_node->gpa[i] = new_node->score[i]/10-5;
}
new_node->ave = sum/5;
new_node->sum = sum;
new_node1 = (DI *)malloc(sizeof(DI));
new_node1->num = new_node->num;
strcpy(new_node1->pass,"000000");
fprintf(fp,"%ld %s\n",node->num,new_node1->pass);
while (new_node->num!=0)
{
node->next = new_node;
node1->next = new_node1;
node = new_node;
node1 = new_node1;
new_node = (stu *)malloc(SI);
printf("\n|学生姓名 |学号 |姓别 |年龄 |生日 |电话号码 |高数 |英语 |离散 |大物 |C语言:\n");
scanf("%s %ld %s %d %d %ld %f %f %f %f %f",new_node->name,&new_node->num,new_node->sex,&new_node->age,&new_node->bir,&new_node->tel,&new_node->score[0],&new_node->score[1],&new_node->score[2],&new_node->score[3],&new_node->score[4]);
int i;
{
sum+=new_node->score[i];
if (new_node->score[i]<60)
new_node->gpa[i] = 0;
else
new_node->gpa[i] = new_node->score[i]/10-5;
}
new_node->ave = sum/5;
new_node->sum = sum;
new_node1 = (DI *)malloc(sizeof(DI));
new_node1->num = new_node->num;
strcpy(new_node1->pass,"000000");
fprintf(fp,"%ld %s\n",node->num,new_node1->pass);
}
node->next = NULL;
free(new_node);
free(new_node1);
write(head);
fclose(fp);
printf("文件插入保存成功");
return head;
}
void mod()
{
stu *new_node,*node,*head,*no;
new_node = (stu *)malloc(SI);
printf("输入要修改学生的信息\n|学生姓名 |学号 |姓别 |年龄 |生日 |电话号码 |高数 |英语 |离散 |大物 |C语言:\n");
scanf("%s %ld %s %d %d %ld %f %f %f %f %f",new_node->name,&new_node->num,new_node->sex,&new_node->age,&new_node->bir,&new_node->tel,&new_node->score[0],&new_node->score[1],&new_node->score[2],&new_node->score[3],&new_node->score[4]);
int i;
float sum=0;
for (i=0;i<5;i++)
{
sum+=new_node->score[i];
if (new_node->score[i]<60)
new_node->gpa[i] = 0;
else
new_node->gpa[i] = new_node->score[i]/10-5;
}
new_node->ave = sum/5;
new_node->sum = sum;
no = head = read();
node = head->next;
while (node!=NULL)
{
if (node->num == new_node->num)
{ new_node->next = node->next;
no->next = new_node;
free(node);
printf("学生信息修改成功!\n");
}
node = node->next;
no = no->next;
}
write(head);
}
void print(stu *node)
{
while(node!=NULL)
{
if(node->num == 0)
{ node= node->next;
continue;
}
printf(ET);
node = node->next;
}
}
void upst(void)
{
printf("\t\t任意键返回.\n");
getchar();
getchar();
}
void sta(void)
{
sortsum();
stu *head,*node,*new_node;
head = read();
int a[5]={0};
node = head->next;
while (node!=NULL)
{
if (node->gpa[0]==0) a[0]++;
if (node->gpa[1]==0) a[1]++;
if (node->gpa[2]==0) a[2]++;
if (node->gpa[3]==0) a[3]++;
if (node->gpa[4]==0) a[4]++;
node = node->next;
}
print(head);
printf("其中高数挂科%d个.\n英语挂科%d个.\n离散挂科%d个.\n大物挂科%d个.\nC语言挂科%d个.\n",a[0],a[1],a[2],a[3],a[4]);
node = head->next;
printf("以下是成绩最高学生的信息:\n");
printf(PT);
printf(ET);
}
int repas(void)
{
stu *head,*node;
head = read();
FILE *fp;
if ((fp = fopen("pass.txt","w+"))==NULL)
{
printf("打开文件失败!\n");
exit(0);
}
node = head->next;
while(node!=NULL)
{
strcpy(node->pass,"000000");
fprintf(fp,"%ld %s\n",node->num,node->pass);
node = node->next;
}
printf("密码重置成功!\n");
fclose(fp);
sleep(1);
clear();
}
DI *fr()
{
FILE *fp;
if((fp = fopen("pass.txt","r"))==NULL)
{
printf("文件读取失败!\n");
exit(0);
}
DI *head,*node,*new_node;
head = node = (DI *)malloc(sizeof(DI));
new_node = (DI *)malloc(sizeof(DI));
fscanf(fp,"%ld %s",&new_node->num,new_node->pass);
while (!feof(fp))
{
node->next = new_node;
node = new_node;
new_node = (DI *)malloc(sizeof(DI));
fscanf(fp,"\n%ld %s",&new_node->num,new_node->pass);
}
node->next = NULL;
free(new_node);
fclose(fp);
return head;
}
void fw(DI *head)
{
FILE *fp;
if((fp = fopen("pass.txt","w+"))==NULL)
{
printf("文件读取失败!\n");
exit(0);
}
DI *node;
node = head->next;
while(node!=NULL)
{
fprintf(fp,"%ld %s\n",node->num,node->pass);
node = node->next;
}
fclose(fp);
}
int password()
{
DI *head1,*node1;
long n;
int i=3;
char p[15];
head1 = fr();
node1 = head1->next;
while(1)
{
printf("\t\t用户名:");
scanf("%ld",&n);
printf("\n\t\t密码:");system("stty -echo");
scanf("%s",p);system("stty echo");
while(node1!=NULL)
{
if (node1->num==n&&strcmp(node1->pass,p)==0)
{
while (1)
{
studbe(node1->num);
}
return 1;
}
node1 = node1->next;
}
i--;
if (i==0)
exit(1);
printf("您还可以输入%d次!\n",i);
node1 = head1->next;
}
}
void stud(long num)
{
stu *head,*node;
int i=1,j,lo=0;
sortsum();
head = read();
node = head->next;
while(node->num!=num)
{ i++;
node = node->next;
}
for (j=0;j<5;j++)
{
if(node->gpa[j]==0)
lo++;
}
printf("PT");
printf(ET);
printf("您的成绩在整个年级排第%d位.\n有挂科%d门.\n",i,lo);
}
int password1()
{
char pass[20],pas[20];
int i=3;
clear();
FILE *fp;
if((fp = fopen("pass","r"))==NULL)
{
printf("文件读取失败!\n");
exit(0);
}
fscanf(fp,"%s",pas);
while(1)
{ printf("\t\t账号:admin");
printf("\t\t密码:");system("stty -echo");
scanf("%s",pass);system("stty echo");
if(strcmp(pas,pass)==0)
{ while (1)
begin();
return 1;
}
i--;
if (i==0)
exit(0);
printf("您还有%d次输入机会!\n",i);
}
}
void pas(long num)
{
clear();
char a[20],b[20],c[20];
DI *head,*node;
head = fr();
printf("\t\t输入原始密码:");system("stty -echo");
scanf("%s",a);system("stty echo");
printf("\n\t\t输入新密码:");system("stty -echo");
scanf("%s",b);system("stty echo");
printf("\n\t\t再次输入新密码:");system("stty -echo");
scanf("%s",c);system("stty echo");
node = head->next;
while(node!=NULL)
{
if (node->num==num)
{if (strcmp(node->pass,a)==0&&strcmp(b,c)==0)
{ strcpy(node->pass,b);
fw(head);
printf("密码修改成功!\n");
break;
}
else printf("原密码输入错误或两次新密码不一致,请重试!\n");}
node = node->next;
}
}
studbe(long num)
{
clear();
printf("\t\t\t=======================================================================================================\t\t\n");
printf("\t\t\t*******************************************************************************************************\t\t\n");
printf("\t\t\t=======================================================================================================\t\t\n");
printf("\t\t\t========||| ** ** ************* * ***** |||========\t\t\n");
printf("\t\t\t========||| ************** * * * * * |||========\t\t\n");
printf("\t\t\t========||| **************** ************* * * * * * * * * * |||========\t\t\n");
printf("\t\t\t========||| ************** * * * * * * * * * |||========\t\t\n");
printf("\t\t\t========||| ********** * * * * * * * * * * * * * * ** |||========\t\t\n");
printf("\t\t\t========||| ****** * * * * * * |||========\t\t\n");
printf("\t\t\t========||| ** * * * * * * * * * * * * * * * |||========\t\t\n");
printf("\t\t\t=======================================================================================================\t\t\n");
printf("\t\t\t******************************====================================*************************************\t\t\n");
printf("\t\t\t===========================|||欢迎来到西安邮电大学学生信息查询系统|||==================================\t\t\n");
printf("\t\t\t===========================||| 请选择 |||==================================\t\t\n");
printf("\t\t\t=======================================================================================================\t\t\n");
printf("\t\t\t ||| 1.查询自己的信息. |||\n");
printf("\t\t\t ||| 2.修改密码. |||\n");
printf("\t\t\t ||| 0.退出. |||\n");
printf("\t\t\t ========================================\n");
int i;
printf("\n\t\t\t");
scanf("%d",&i);
switch(i)
{
case 1 : clear();stud(num);upst();break;
case 2 : clear();pas(num);upst();break;
case 0 : printf("\t\t\t谢谢使用,再见!\n");system("sl");clear();exit(0);
}
}
void admin(void)
{
clear();
char a[20],b[20],c[20],d[20];
FILE *fp;
if ((fp = fopen("pass","r"))==NULL)
{
printf("打开文件失败!\n");
exit(0);
}
fscanf(fp,"%s",d);
fclose(fp);
printf("\t\t输入原始密码:");system("stty -echo");
scanf("%s",a);system("stty echo");
printf("\n\t\t输入新密码:");system("stty -echo");
scanf("%s",b);system("stty echo");
printf("\n\t\t再次输入新密码:");system("stty -echo");
scanf("%s",c);system("stty echo");
if (strcmp(d,a)==0&&strcmp(b,c)==0)
{
fp = fopen("pass","w+");
fprintf(fp,"%s",c);
printf("密码修改成功!\n");
}
else printf("原密码输入错误或两次新密码不一致,请重试!\n");
fclose(fp);
}
int pa(void)
{
char pass[20],pas[20];
int i=3;
FILE *fp;
if((fp = fopen("pass","r"))==NULL)
{
printf("文件读取失败!\n");
exit(0);
}
fscanf(fp,"%s",pas);
while(1)
{ printf("\t\t账号:admin");
printf("\t\t密码:");system("stty -echo");
scanf("%s",pass);system("stty echo");
if(strcmp(pas,pass)==0)
{
creat();
return 1;
}
i--;
if (i==0)
exit(0);
printf("您还有%d次输入机会!\n",i);
}
}
void repass()
{
clear();
int i;
printf("\t\t1.更改管理员密码\n\t\t2.重置学生登录密码(慎重).\n\t\t3.删除所有学生信息并重新创建(慎重)\n\t\t0.返回上一层\n\t\t");
scanf("%d",&i);
switch(i)
{
case 1 : clear();admin();upst();break;
case 2 : clear();repas();upst();break;
case 3 : clear();pa();break;
case 0 : begin();break;
}
}
begin()
{
stu *head,node,new_node;
clear();
printf("\t\t\t=======================================================================================================\t\t\n");
printf("\t\t\t*******************************************************************************************************\t\t\n");
printf("\t\t\t=======================================================================================================\t\t\n");
printf("\t\t\t========||| ** ** ************* * ***** |||========\t\t\n");
printf("\t\t\t========||| ************** * * * * * |||========\t\t\n");
printf("\t\t\t========||| **************** ************* * * * * * * * * * |||========\t\t\n");
printf("\t\t\t========||| ************** * * * * * * * * * |||========\t\t\n");
printf("\t\t\t========||| ********** * * * * * * * * * * * * * * ** |||========\t\t\n");
printf("\t\t\t========||| ****** * * * * * * |||========\t\t\n");
printf("\t\t\t========||| ** * * * * * * * * * * * * * * * |||========\t\t\n");
printf("\t\t\t=======================================================================================================\t\t\n");
printf("\t\t\t******************************====================================*************************************\t\t\n");
printf("\t\t\t===========================|||欢迎来到西安邮电大学学生信息管理系统|||==================================\t\t\n");
printf("\t\t\t===========================||| 请选择 |||==================================\t\t\n");
printf("\t\t\t=======================================================================================================\t\t\n");
printf("\t\t\t ||| 1.预览所有学生信息. |||\n");
printf("\t\t\t ||| 2.查找学生信息. |||\n");
printf("\t\t\t ||| 3.添加学生信息. |||\n");
printf("\t\t\t ||| 4.删除学生信息. |||\n");
printf("\t\t\t ||| 5.修改学生信息. |||\n");
printf("\t\t\t ||| 6.统计学生信息. |||\n");
printf("\t\t\t ||| 7.重置. |||\n");
printf("\t\t\t ||| 0.退出程序 |||\n");
printf("\t\t\t ==========================================\n");
int i;
printf("\t\t\t");
scanf("%d",&i);
switch(i)
{
case 1 : clear();sortnum();head = read();print(head);upst();break;
case 2 : clear();find();upst();break;
case 3 : clear();add();upst();break;
case 4 : clear();delete();upst();break;
case 5 : clear();mod();upst();break;
case 6 : clear();sta();upst();break;
case 7 : clear();repass();break;
case 0 : printf("\t\t\t谢谢使用,再见!\n");system("sl");clear();exit(0);
}
}
int main(void)
{
clear();
printf("\t\t<选择登陆方式>\n\t\t1.管理员登陆.\n\t\t2.学生登陆.\n\t\t0.退出程序");
int i;
printf("\t\t\t");
scanf("%d",&i);
switch(i)
{
case 1 : clear();password1();break;
case 2 : clear();password();break;
case 0 : printf("谢谢使用!\n");sleep(3);exit(0);
}
}
快速构建 Web 应用程序
更多推荐
0
0- 0
已为社区贡献1条内容
所有评论(0)