C語言學生選課系統(tǒng)(代碼)

1、精品#include<stdio.h>#include<stdlib.h>#include<string.h>int N1,N2;struct studentint num2;char name220;int nelenum50;/ 所選課程編號int nelen;/ 所選課程學分和struct student * next;struct courseint num1;/ 課程編號char name120;char major20;char type20;int credit;int period;char teacher20;int people;/ 選此

2、門課程的人數(shù)struct course *next;/ 結構體指針;struct course * head1;struct student * head2;void zhang()/ 從鍵盤錄入課程信息struct course *p1,*p2;N1=0;p1=p2=(struct course *)malloc(sizeof(struct course);感謝下載載精品printf(" 課程編號 t 課程名稱 t 主修 t 課程性質 t 學分 t 課時 t 教師 n");scanf("%d%s%s%s%d%d%s",&p1->num1,

3、p1->name1,p1->major,p1->t ype,&p1->credit,&p1->period,p1->teacher);p1->people=0;head1=NULL;while(p1->num1!=0)N1=N1+1;if(N1=1)head1=p1;else p2->next=p1;p2=p1;p1=(struct course * )malloc(sizeof(struct course);scanf("%d%s%s%s%d%d%s",&p1->num1,p1->n

4、ame1,p1->major,p1->t ype,&p1->credit,&p1->period,p1->teacher);p1->people=0;p2->next=NULL;void zhang1()/ 從文件錄入課程信息FILE * fp;char filepath20;struct course *p1,*p2;N1=0;printf(" 請輸入您要讀取的路徑 :");getchar();gets(filepath);if(fp=fopen(filepath,"r")=NULL)感謝下載載

5、精品printf(" 找不到%s 文件 !n",filepath);exit(0);p1=p2=(struct course*)malloc(sizeof(struct course);fscanf(fp,"%d%s%s%s%d%d%s%d",&p1->num1,p1->name1,p1->major, p1->type,&p1->credit,&p1->period,p1->teacher,&p1->people);while(!feof(fp)N1=N1+1;if(N1=

6、1)head1=p1;elsep2->next=p1;p2=p1;p1=(struct course * )malloc(sizeof(struct course);fscanf(fp,"%d%s%s%s%d%d%s%d",&p1->num1,p1->name1,p1->major, p1->type,&p1->credit,&p1->period,p1->teacher,&p1->people);p2->next=NULL;void load()/ 錄入課程信息函數(shù)int i;pr

7、intf("ttt錄入課程信息 n");printf("n1.從鍵盤錄入 ");printf("n2.從文件錄入 ");printf("n3.返回主菜單 n");printf(" 請選擇 1-3:");scanf("%d",&i);感謝下載載精品switch(i)case 1: zhang();break;case 2:zhang1();break;case 3:break;void insert(struct course *incourse)/ 增加課程信息str

8、uct course *p0,*p1,*p2;p1=head1;p0=incourse;if(head1=NULL)head1=p0;p0->next=NULL;elsewhile(p0->num1>p1->num1) && (p1->next!=NULL)p2=p1;p1=p1->next;if(p0->num1<=p1->num1)if(head1=p1)head1=p0;elsep2->next=p0;p0->next=p1;感謝下載載精品elsep1->next=p0;p0->next=NUL

9、L;N1=N1+1;void delc(int num1)/ 刪除課程信息struct course *p1,*p2;if(head1=NULL)printf("n無法刪除 !n");goto end;p1=head1;while(num1!=p1->num1 && p1->next!=NULL)p2=p1;p1=p1->next;if(num1=p1->num1)if(p1=head1)head1=p1->next;elsep2->next=p1->next;printf(" 已刪除 n");N

10、1=N1-1;感謝下載載精品elseprintf(" 沒有此課程 n");end:;void managementc()/ 課程信息管理函數(shù)struct course * p1;int i,num1;printf("ttt課程信息管理 n");printf("1. 添加課程 n");printf("2. 刪除課程 n");printf("3. 返回 n");printf(" 請輸入 1-3:n");scanf("%d",&i);switch(i)c

11、ase 1:p1=(struct course *)malloc(sizeof(struct course);printf(" 課程編號 t 課程名稱 t 主修 t 課程性質 t 學分 t 課時 t 教師 n");scanf("%d%s%s%s%d%d%s",&p1->num1,p1->name1,p1->major,p1->t ype,&p1->credit,&p1->period,p1->teacher);p1->people=0;insert(p1);break;case 2:

12、printf("請輸入您要刪除的課程編號:n");scanf("%d",&num1);delc(num1);break;case 3:break;感謝下載載精品void putin(void)/ 從鍵盤錄入學生信息int i;struct student *p1,*p2;N2=0;p1=p2=(struct student *)malloc(sizeof(struct student);printf(" 學號 t 姓名 n");scanf("%d%s",&p1->num2,p1->nam

13、e2);p1->nelen=0;for(i=0;i<20;i+) p1->nelenumi=0;head2=NULL;while(p1->num2!=0)N2=N2+1;if(N2=1)head2=p1;elsep2->next=p1;p2=p1;p1=(struct student * )malloc(sizeof(struct student);scanf("%d%s",&p1->num2,p1->name2);p1->nelen=0;for(i=0;i<20;i+) p1->nelenumi=0;p2

14、->next=NULL;void putin2()/ 從文件錄入學生信息int i=0;FILE * fp;char filepath20;struct student *p1,*p2;感謝下載載精品N2=0;printf(" 請輸入您要讀取的路徑 :");getchar();gets(filepath);if(fp=fopen(filepath,"rt")=NULL)printf(" 找不到%s 文件 !n",filepath);exit(0);p1=p2=(struct student*)malloc(sizeof(stru

15、ct student);fread(p1,sizeof(struct student),1,fp);head2=NULL;while(!feof(fp)i=0;N2=N2+1;if(N2=1)head2=p1;elsep2->next=p1;p2=p1;p1=(struct student * )malloc(sizeof(struct student);fread(p1,sizeof(struct student),1,fp);p2->next=NULL;void input()/ 錄入學生信息函數(shù)int i;printf("ttt錄入學生信息 n");pri

16、ntf("n1.從鍵盤錄入 n");感謝下載載精品printf("2. 從文件錄入 n");printf("3. 返回主菜單 n");printf(" 請輸入 1-3:n");scanf("%d",&i);switch(i)case 1:putin();break;case 2:putin2();break;case 3:break;void inserts(struct student * incouse)/ 增加學生信息struct student *p0,*p1,*p2;p1=he

17、ad2;p0=incouse;if(head2=NULL)head2=p0;p0->next=NULL;elsewhile(p0->num2>p1->num2) && (p1->next!=NULL)p2=p1;p1=p1->next;if(p0->num2 <= p1->num2)if(head2=p1) head2=p0;感謝下載載精品else p2->next=p0;p0->next=p1;elsep1->next=p0;p0->next=NULL;N2=N2+1;void dels(int n

18、um2)/ 刪除學生信息struct student *p1,*p2;if(head2=NULL)printf("n無法刪除 n");goto end;p1=head2;while(num2!=p1->num2 && p1->next!=NULL)p2=p1;p1=p1->next;if(num2=p1->num2)if(p1=head2)head2=p1->next;elsep2->next=p1->next;printf(" 已刪除 n");感謝下載載精品N2=N2-1;elseprintf(

19、" 沒有此學生編號 n");end:;void managements()/ 學生信息管理函數(shù)struct student * p1;int i,num2;printf("ttt學生信息管理 n");printf("1. 添加學生信息 n");printf("2. 刪除學生信息 n");printf("3. 返回主菜單 n");printf(" 請選擇 1-3:n");scanf("%d",&i);switch(i)case 1:p1=(struc

20、t student *)malloc(sizeof(struct student); p1->nelen=0;p1->nelenum0=0;printf("numtnamen");scanf("%d%s",&p1->num2,p1->name2);inserts(p1);break;case 2:printf("請輸入您要刪除的學生編號:n");scanf("%d",&num2);dels(num2);break;case 3:break;感謝下載載精品void elect(

21、)/ 學生選課struct student * s;struct course * p;int a,i,b;printf(" 請輸入您的學號 :n");scanf("%d",&a);s=head2;while(s->num2)!=a&&s->next!=NULL) s=s->next;if(s->num2!=a)printf(" 您的信息不存在，請重新輸入:n");goto end;if(s->nelen)>10)printf(" 您的學分已滿 ");go

22、to end;printf(" 請輸入您要選修的課程編號n");scanf("%d",&b);for(i=0;(s->nelenumi)=0;i+);s->nelenumi=b;p=head1;while(p->num1)!=b)p=p->next;for(i=0;(s->nelenumi)!=0;i+);s->nelenumi=b;(p->people)+;(s->nelen)=(s->nelen)+(p->credit);(p->people)+;感謝下載載精品end:;voi

23、d back()/ 學生退課struct student * p;struct course * p1;int b,i,j,a;printf(" 請輸入您的學號 :n");scanf("%d",&a);p=head2;while(p->num2!=a&&p!=NULL) p=p->next;if(p=NULL)printf(" 您的信息不存在 :n");elseprintf(" 請輸入您要退選的課程 :n");scanf("%d",&b);p1=hea

24、d1;while(p1->num1!=b) p1=p1->next;for(i=0;p->nelenumi!=b;i+);for(j=i;p->nelenumj!=0;j+)p->nelenumj=p->nelenumj+1;p->nelenum-j=0;(p->nelen)=(p->nelen)-(p1->credit);(p1->people)-;printf("succeed!n");void elective()/ 學生選課信息管理int i;感謝下載載精品printf("ttt學生選課信息

25、管理 n");printf("1. 選課 n");printf("2. 退課 n");printf("3. 返回主菜單 n");printf(" 請輸入 1-3:n");scanf("%d",&i);switch(i)case 1:elect();break;case 2:back();break;case 3:break;void listc()/ 瀏覽課程信息struct course * p;p=head1;printf(" 課程編號課程名稱主修課程性質學分課時

26、教師選課人數(shù) n");while(p!=NULL)printf("%6d%13s%13s%10s%7d%7d%12s%5dn",p->num1,p->nam e1,p->major,p->type,p->credit,p->period,p->teacher,p->people);p=p->next;void lists()/ 瀏覽學生信息struct student * p;int a;感謝下載載精品p=head2;printf(" 學生編號學生姓名所選課程編號所選課程學分 n");whi

27、le(p!=NULL)printf("%6d%13s",p->num2,p->name2);printf("%6d",p->nelen);for(a=0;p->nelenuma!=0&&a<14;a+)printf("%d",p->nelenuma);printf("n");p=p->next;void intoc()/ 存儲課程信息FILE * fp;struct course * p;char filepath30;printf(" 輸入路徑

28、:");getchar();gets(filepath);if(fp=fopen(filepath,"w")=NULL)無法儲存 !");exit(0);p=head1;while(p!=NULL)fprintf(fp,"%d%s%s%s%d%d%s%dn",p->num1,p->name1,p->major感謝下載載精品,p->type,p->credit,p->period,p->teacher,p->people);p=p->next;fclose(fp);printf(&q

29、uot; 已儲存入 %s 文件 !n",filepath);void intos()/ 存儲學生信息FILE * fp;struct student * p;char filepath30;printf(" 請輸入路徑 :");getchar();gets(filepath);if(fp=fopen(filepath,"wt")=NULL)printf("n無法儲存 !");exit(0);p=head2;while(p!=NULL)fwrite(p,sizeof(struct student),1,fp);p=p->

30、next;fclose(fp);printf(" 已儲存入%s 文件 !n",filepath);void into()/ 信息存儲函數(shù)int i;感謝下載載精品printf("ttt信息存儲 n");printf("1. 課程信息存儲 n");printf("2. 學生信息存儲 tn");printf("3. 返回主菜單 n");printf(" 請輸入 1-3n");scanf("%d",&i);switch(i)case(1):intoc()

31、;break;case(2):intos();break;case(3):break;void store()/ 信息存儲瀏覽函數(shù)int i;printf("tt信息存儲和瀏覽 n");printf("1. 課程信息瀏覽 n");printf("2. 學生信息瀏覽 n");printf("3. 信息存儲 n");printf("4. 返回主菜單 n");printf(" 請輸入 1-4:n");scanf("%d",&i);switch(i)cas

32、e(1):listc();break;case(2):lists();break;case(3):into();break;case(4):break;感謝下載載精品void search1()/ 按學生編號查找學生信息int a,b;struct student * p;printf(" 請輸入學生編號 ");scanf("%d",&a);p=head2;printf(" 學號學生姓名所選課程編號所選課程學分 n");while(p!=NULL)if(p->num2=a)printf("%6d%13s &qu

33、ot;,p->num2,p->name2);for(b=0;p->nelenumb!=0&&b<14;b+)printf("%d",p->nelenumb);printf("%10dn",p->nelen);p=p->next;void search2()/ 按學生姓名查找學生信息int b;char name20;struct student * p;printf(" 請輸入要查找的學生姓名:");scanf("%s",name);p=head2;prin

34、tf(" 學號學生姓名所選課程編號所選課程學分 n");while(p!=NULL)感謝下載載精品if(strcmp(name,p->name2)=0)printf("%6d%13s ",p->num2,p->name2);for(b=0;p->nelenumb!=0&&b<14;b+)printf("%d",p->nelenumb);printf("%10dn",p->nelen);p=p->next;void search()/ 學生信息查找主函數(shù)

35、int i;printf("ttt學生信息查找 ");printf("n1.按學號查找 ");printf("n2.按姓名查找 ");printf("n3.返回主菜單 ");printf("n請輸入 1-3:");scanf("%d",&i);switch(i)case 1:search1();break;case 2:search2();break;case 3:break;void main()/ 主函數(shù)char m;int i;start:printf("