C语言数据库-学生成绩统计管理系统.pdf

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1、1 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：2 一、代码#include#include#include#include#include#include#include#includestruct gradeint score;struct grade*next;/*定义成绩的结构*/struct address char stu_num4;/*学号*/char hname10;/*性别*/char ename20;/*姓名*/char depart30;/*系别*/char paddress30;/*地址*/char phone13/*联系电话*/;struc

2、t 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*m

3、ove);void gotoxy(int x,int y);void sortp(struct address*head);int main(void )char ch;int c;3 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 perso

4、n.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(c6);switch (c)case 1:printm(head);break;case 2:addnew(&head);break;case 3:revise(head);4 break;case 4:delate(&head);break;break;case 5:

5、return 0;default:break;fflush(stdin);printf(continue or not:input y or nn);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:,rb)return;if(!

6、(gfhead=fopen(d:,rb)return;while (!feof(afhead)p1=(struct address*)malloc(sizeof(struct address);fread(p1,sizeof(struct address),1,afhead);5 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-ne

7、xt;*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;6 fclose(afhead);fclose(gfhead);void printm(struct address*head)int i=0,j;flo

8、at iscore;struct grade*ghd=NULL;struct address*hd=NULL;hd=head;system(cls);if (hd=NULL)printf(tt=No sourse in the file!=);return ;while (hd!=NULL)gotoxy(1,i+1);printf(=n);for(j=0;jstu_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(D

9、epartment:%s,hd-depart);gotoxy(5,i+4);printf(Address:%s ,hd-paddress);gotoxy(5,i+5);printf(Phone nummber:%sn,hd-phone);7 printf(n);printf(tHisHer 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(%dt,ghd-score);iscore+=ghd-score;ghd=ghd-next;printf(n);hd

10、=hd-next;i=i+10;void delate(struct address*head)char cinput20;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-

11、ename)&TARGE!=NULL)8 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);n);fflush(stdin);do scanf(%d,&ch);while(ch12|chhname);break;case 2:printf(enter the name in Spell:n);scan

12、f(%s,TARGE-ename);break;case 3:printf(enter the Student nummer:n);scanf(%s,&TARGE-stu_num);9 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-ph

13、one);break;case 7:printf(input your geography scoren);scanf(%d,&(move-score);break;case 8:moveg(8,&move);printf(input your biology scoren);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 engl

14、ish 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;10 default :;fflush(stdin);printf(if you want to revise other detail

15、formation input yn);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:,wb)=NULL)printf(file error!n);retu

16、rn;if (gfhead=fopen(d:,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;11 while (gcu!=NULL)fwrite(gcu,sizeof(struct grade),1,gfhead);gcu=gcu-next;tail=tail-next;fclose(afhead);fclose(gfhead);void addnew(struct address*hea

17、d)struct address*phead=NULL,*pTempNode=NULL;struct grade*gh=NULL;pTempNode=(struct address*)malloc(sizeof(struct address);printf(input num(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:

18、);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=(structgrade*)malloc(sizeof(structgrade);scanf(%d,&pTempNode-h

19、ead-score);gh=pTempNode-head;12 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 gra

20、de*)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!);13 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）。