C语言数据库-学生成绩统计管理系统

学生成绩统计管理系统

C语言数据结构课程作品

指导老师:

学生:

学号:

班级:

一、代码

#include"stdafx、h"

#include

#include

#include

#include

#include

#include

#include

struct grade

{

int score;

struct grade *next;

}; /*定义成绩的结构*/ struct address{

char stu_num[4]; /*学号*/

char hname[10]; /*性别*/

char ename[20]; /*姓名*/

char depart[30]; /*系别*/

char paddress[30]; /*地址*/

char phone[13] /*联系电话*/;

struct grade *head;

struct address *next;

} ;

void loaddata (struct address **had);

void printm (struct address *head);

struct address * seek (struct address *head);

void revise (struct address *hp);

void delate (struct address **head);

void saveda (struct address *tou );

void addnew (struct address **had );

void moveg (int i,struct grade **move);

void gotoxy(int x,int y);

void sortp(struct address **head);

int main ( void )

{

char ch;

int c;

struct address *head=NULL;

loaddata(&head);

do

{

system("cls");

printf(" \n");

printf("学生信息与成绩统计:\n");

printf(" 岳鹏程制作\n"); printf(" ===============================================\n"); printf("‖ Menu: ‖\n"); printf("‖ 1:print all the personal information、‖\n"); printf("‖ 2:insert some or one person、‖\n"); printf("‖ 3:revire some information、‖\n"); printf("‖ 4:delate some information or a person、‖\n"); printf("‖ 5:exit、‖\n"); printf(" ===============================================\n"); printf("\tInput :");

do

{

scanf("%d",&c);

getchar( );

}while(c<0||c>6);

switch ( c )

{

case 1:

printm(head);

break;

case 2:

addnew(&head);

break;

case 3:

revise(head);

break;

case 4:

delate(&head);

break;

break;

case 5:

return 0;

default:

break;

}

fflush(stdin);

printf("continue or not: input y or n\n");

ch=getchar( );

saveda(head);

}while(ch=='y'||ch=='Y');

return 0;

}

void loaddata (struct address **had )

{

FILE *afhead;

FILE *gfhead;

struct address *p1,*hp1=NULL,*head=NULL;

struct grade *p2 , *hp2 = NULL;

int i=0;

int j=6;

if( !(afhead = fopen("d:\\information、dat","rb")))

{

return;

}

if( !(gfhead = fopen("d:\\grade、dat" , "rb")) )

{

return;

}

while (!feof(afhead))

{

p1 = (struct address *)malloc(sizeof(struct address));

fread(p1,sizeof(struct address),1,afhead);

if(feof(afhead))

{

if(!p1)

free(p1);

break;

}

if(i==0)

{

p1->next = NULL;

p1->head = NULL;

head = p1;

hp1 = p1;

i++;

} /*使头指针指向第一个创建的节点*/ else

{

p1->next = NULL;

p1->head = NULL;

hp1->next = p1;

hp1 = hp1->next;

}

}

*had = head;

p1 = *had;