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<stdio、h>#include<malloc、h>#include<memory、h>#include<string、h>#include<conio、h>#include<stdlib、h>#include<windows、h>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;/*成绩就是后进先出*/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 studentnummber;\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("!\n");return;}if ((gfhead = fopen("d:\\grade、dat","wb")) == NULL){printf("!\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: ");scanf("%s" , pTempNode->hname);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));C语言数据库-学生成绩统计管理系统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)); scanf("%d" , &(gh->next->score));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”实现主要就是靠链表。