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;
/*成绩是后进先出*/
while (!feof(gfhead))
{
do
{
p2=(struct grade *)malloc(sizeof(struct grade));
fread(p2,sizeof(struct grade),1,gfhead);
p2->next = hp2;
hp2 = p2;
j --;
}while( j > 0 );
if( !feof(gfhead) && p1 != NULL)
{
p1 -> head = hp2;
p1 = p1 -> next;
}
}
fclose(afhead);
fclose(gfhead);
}
void printm (struct address *head)
{
int i=0 , j;
float iscore;
struct grade *ghd=NULL;
struct address *hd=NULL;
hd = head;
system("cls");
if (hd==NULL)
{
printf("\t\t=== No sourse in the file! ===");
return ;
}
while (hd != NULL)
{
gotoxy(1,i+1);
printf("==========================================================\n" );
for(j=0;j<6;j++)
{
gotoxy(1,i+1+j);
printf("‖");
gotoxy(58,i+1+j);
printf("‖");
}
gotoxy(1,i+6);
printf("\n==========================================================\ n");
gotoxy(5,i+2); printf("Nummber: %s" , hd->stu_num);
gotoxy(30,i+2); printf("Name-spelling: %s" , hd->ename );
gotoxy(5,i+3); printf("Sex:%s" , hd->hname );
gotoxy(30,i+3); printf("Department: %s", hd->depart);
gotoxy(5,i+4); printf("Address: %s" , hd->paddress);
gotoxy(5,i+5); printf("Phone nummber: %s\n", hd->phone);
printf("\n==========================================================\ n");
printf("\tHis\\Her score is : \n");
ghd=hd->head;
printf("name 地理生物物理英语数学语文\n"); printf("%s ",hd->ename);
while ( ghd != NULL )
{
printf(" %d\t" , ghd->score);
iscore += ghd -> score;
ghd = ghd->next;
}
printf(" \n ");
hd = hd->next;
i = i + 10;
}
}
void delate (struct address **head)
{
char cinput[20];
struct address *PRE,*TARGE;
TARGE = (*head);
if(!TARGE)
{
printf("========= No any information!!");
return;
}
fflush(stdin);
printf(" Input the name or student nummber you want to delate:\t"); scanf(" %s" , cinput);
while(stricmp(cinput, TARGE->stu_num) && stricmp(cinput ,TARGE->ename) && TARGE != NULL)
{
PRE = TARGE;
TARGE=TARGE->next;
}
if (TARGE == NULL)
{
printf("==== No this information! ====\n");
return ;
}
if(TARGE == (*head) )
{
(*head) = (*head) -> next;
return ;
}
else
{
PRE->next = TARGE->next;
}
if(!TARGE)
free(TARGE);
}
//*************修改信息
void revise (struct address *head)
{
int ch;
char cinput[20];
char choice;
struct address *TARGE = NULL;
struct grade *move;
do {
system("cls");
printf(" Input the name or student nummber you want to delate:\t"); fflush(stdin);
scanf(" %s" , cinput);
TARGE = head;
while(stricmp( cinput, TARGE->stu_num) &&
stricmp(cinput ,TARGE->ename) && TARGE != NULL)
{
TARGE = TARGE->next;
}
if (TARGE == NULL) return;
printf("input the command:\n1->revise the sex;\t\t" );
printf("2->revise the ename;\n3->revise the student nummber;\t\t");
printf("4->revise the depart;\n5->revise the address;\t\t"); printf("6->revise the phone\n7->revise the geography;\t\t");
printf("8-.revise the biology\n9->revise the physics;\t\t"); printf("10->revise the english;\n11->revise the maths ;\t\t"); printf("12->to revise the chinese.\n");
fflush( stdin);
do{
scanf("%d",&ch);
}while(ch>12||ch<0);
switch(ch)
{
case 1 :
printf("enter the your sex male or female :\n"); scanf("%s" , TARGE->hname);
break;
case 2 :
printf("enter the name in Spell:\n");
scanf("%s" , TARGE->ename);
break;
case 3 :
printf("enter the Student nummer:\n");
scanf("%s" , &TARGE->stu_num);
break;
case 4 :
printf("input your Department:\n");
scanf("%s" , TARGE->depart);
break;
case 5 :
printf("input your present Address:\n");
scanf("%s" , TARGE->paddress);
break;
case 6 :
printf("input your mobie nummer:\n");
scanf("%s" , TARGE->phone);
break;
case 7 :
printf("input your geography score\n");
scanf("%d" , &(move->score));
break;
case 8 :
moveg (8, &move);
printf("input your biology score\n");
scanf("%d" , &(move->score));
break;
case 9 :
moveg (9, &move);
printf("input your physics score:\n");
scanf("%d" , &(move->score));
break;
case 10:
moveg (10, &move);
printf("input your english score:\n");
scanf("%d" , &(move->score));
break;
case 11:
moveg (11, &move);
printf("input your maths score:\n");
scanf("%d" , &(move->score));
break;
case 12:
moveg (12, &move);
printf("input your chinese score:\n");
scanf("%d" , &(move->score));
move=move->next;
break;
default : ;
}
fflush(stdin);
printf("if you want to revise other detail formation input y\n"); scanf("%c" , &choice);
}while(choice == 'y' || choice == 'Y');
}
void moveg (int i,struct grade **move)
{
for(i = i - 7; i > 0; i--)
{
( *move ) = ( *move ) -> next;
}
}
//*******************删除原来的记录并保存现在的 ok!
void saveda (struct address *tou)
{
FILE *afhead , *gfhead;
struct grade *gcu;
struct address *tail = tou;
if((afhead = fopen("d:\\information.dat" , "wb")) == NULL) {
printf("file error!\n");
return;
}
if ((gfhead = fopen("d:\\grade.dat","wb")) == NULL)
{
printf("file error!\n");
return;
} /*打开保存数据的文件*/
while (tail != NULL)
{
fwrite(tail , sizeof(struct address) , 1 , afhead);
gcu = tail -> head;
while (gcu != NULL)
{
fwrite(gcu , sizeof(struct grade) , 1 , gfhead);
gcu = gcu -> next;
}
tail = tail -> next;
}
fclose(afhead);
fclose(gfhead);
}
void addnew (struct address **head )
{
struct address *phead = NULL , *pTempNode = NULL;
struct grade *gh = NULL;
pTempNode=(struct address *)malloc(sizeof(struct address));
printf("input num (<10000): ");
scanf("%s" , &pTempNode->stu_num);
printf("input your sex male or female: ");
printf("input name in spelling: ");
scanf("%s" , pTempNode->ename);
printf("input your department: ");
scanf("%s" , pTempNode->depart);
printf("input your address: ");
scanf("%s" , pTempNode->paddress);
printf("input your phone nummber: ");
scanf("%s" , pTempNode->phone);
pTempNode -> next = NULL;
pTempNode -> head = NULL;
fflush(stdin);
printf("input chinese:");
pTempNode->head = (struct grade *)malloc(sizeof(struct grade)); scanf("%d" , &pTempNode->head->score);
gh = pTempNode->head;
printf("input maths score: ");
gh -> next = (struct grade *)malloc(sizeof(struct grade));
gh = gh -> next;
scanf("%d" , &gh -> score);
printf("input English score: ");
gh->next = (struct grade *)malloc(sizeof(struct grade));
gh = gh -> next;
scanf("%d" ,&gh->score);
printf("input physics score: ");
gh->next = (struct grade *)malloc(sizeof(struct grade));
gh = gh->next ;
scanf("%d" , &gh->score);
printf("input bilolgy score: ");
gh->next = (struct grade *)malloc(sizeof(struct grade));
gh = gh->next ;
scanf("%d" ,&gh->score);
printf("input geography score: ");
gh->next = (struct grade *)malloc(sizeof(struct grade));
gh->next->next = NULL ;
if((*head) == NULL)
{
(*head) = pTempNode;
}
else
{
phead = (*head);
while(phead != NULL && phead->next != NULL)
{
phead = phead->next;
}
phead->next = pTempNode;
}
printf("you have add a new person!");
}
二、设计思路
“任意增删”实现主要是靠链表。
“学生”是一种支持链表的结构体。
全局有一个“学生”的链表。
然后每个“学生”object下面又有各自的一个“科目”的链表。（printf打印菜单文字内容，scanf获取输入等）。