#include #include #include typedef struct subjects{ int num; char name[20]; char kind[10]; int stime; int ttime; int etime; int score; int term; struct subjects *next;}SUB; SUB *create_form(){ SUB *head,*tail,*p; int num,stime,ttime; int etime,score,term; char name[20],kind[10]; int size=sizeof(SUB); head=tail=NULL; printf("输入选修课程信息:\n"); scanf("%d %s %s %d %d %d %d %d",&num,&name,&kind,&stime,&ttime,&etime,&score,&term); while(num!=0){ p=(SUB *)malloc(size); p->num=num; strcpy(p->name,name); strcpy(p->kind,kind); p->stime=stime; p->ttime=ttime; p->etime=etime; p->score=score; p->term=term; if(head==NULL) head=p; else tail->next=p; tail=p; scanf("%d %s %s %d %d %d %d %d",&num,&name,&kind,&stime,&ttime,&etime,&score,&term); } tail->next=NULL; return head;} void savefile(SUB *head){ SUB *p; FILE *fp; fp=fopen("subjects.txt","w"); fprintf(fp,"课程编号 课程名称 课程性质 总学时 授课学时 实验或上机学时 学分 开课学期\n"); for(p=head;p;p=p->next) fprintf(fp,"%5d%12s%9s%9d%9d%11d%11d%7d\n",p->num,p->name,p->kind,p->stime,p->ttime,p->etime,p->score,p->term); fclose(fp);} void savefileadd(SUB *head){ SUB *p; FILE *fp; fp=fopen("subjectsadd.txt","w"); fprintf(fp,"课程编号 课程名称 课程性质 总学时 授课学时 实验或上机学时 学分 开课学期\n"); for(p=head;p;p=p->next) fprintf(fp,"%5d%12s%9s%9d%9d%11d%11d%7d\n",p->num,p->name,p->kind,p->stime,p->ttime,p->etime,p->score,p->term); fclose(fp);} void savefiledel(SUB *head){ SUB *p; FILE *fp; fp=fopen("subjectsdel.txt","w"); fprintf(fp,"课程编号 课程名称 课程性质 总学时 授课学时 实验或上机学时 学分 开课学期\n"); for(p=head;p;p=p->next) fprintf(fp,"%5d%12s%9s%9d%9d%11d%11d%7d\n",p->num,p->name,p->kind,p->stime,p->ttime,p->etime,p->score,p->term); fclose(fp);} void prin(SUB *head){ SUB *ptr; if(head==NULL){ printf("没有此门课程记录!\n"); return; } printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上机学时 学分 开课学期\n"); for(ptr=head;ptr;ptr=ptr->next) printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",ptr->num,ptr->name,ptr->kind,ptr->stime,ptr->ttime,ptr->etime,ptr->score,ptr->term);}void search(SUB *head){ int a,num; int t=1; char type[10]; char ch='a',ch1; SUB *ptr; while(ch!=' '){ printf("若要按课程性质查找请输入1,若要按学分查找请输入2:\n"); scanf("%d",&a); switch(a){ case 1:printf("请输入要查找的课程的性质:\n"); scanf("%s",type); printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上机学时 学分 开课学期\n"); for(ptr=head;ptr;ptr=ptr->next) if(strcmp(type,ptr->kind)==0){ printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",ptr->num,ptr->name,ptr->kind,ptr->stime,ptr->ttime,ptr->etime,ptr->score,ptr->term); t=0; } if(t) printf("未找到!\n"); t=1; break; case 2:printf("输入要查找的课程的学分\n"); scanf("%d",&num); printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上机学时 学分 开课学期\n"); for(ptr=head;ptr;ptr=ptr->next) if(ptr->score==num){ printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",ptr->num,ptr->name,ptr->kind,ptr->stime,ptr->ttime,ptr->etime,ptr->score,ptr->term); t=0; } if(t) printf("未找到!\n"); t=1; } printf("继续查找请按回车键,结束请按空格键:\n"); ch1=getchar(); //将回车键赋给CH1,否则CASE里面最后输入的回车键会赋给CH,因此用CH1填补。 ch=getchar(); }}SUB *insert(SUB *head){ SUB *ptr,*ptr2,*subj; int size=sizeof(SUB); char ch='a',ch1; while(ch!=' '){ subj=(SUB *)malloc(size); ptr=subj; printf("输入要插入的课程信息:\n"); scanf("%d%s%s%d%d%d%d%d",&subj->num,subj->name,subj->kind,&subj->stime,&subj->ttime,&subj->etime,&subj->score,&subj->term); if(head==NULL){ head=ptr; head->next=NULL; } else{ for(ptr2=head;ptr2;ptr2=ptr2->next) if(ptr2->next==NULL){ ptr2->next=subj; subj->next=NULL; break; } } printf("继续插入请按回车,结束请按空格:\n"); ch1=getchar(); //将回车键赋给CH1,否则subj->term输完后输入的回车键会赋给CH,因此用CH1填补。 ch=getchar(); } return head;}SUB *del(SUB *head){ SUB *p1,*p2; char ch='a',ch1; int num; while(ch!=' '){ printf("输入想要删除的课程编号:\n"); scanf("%d",&num); if(head->num==num){ p2=head; head=head->next; free(p2); } if(head==NULL) return NULL; p1=head; p2=head->next; while(p2){ if(p2->num==num){ p1->next=p2->next; free(p2); } else p1=p2; p2=p1->next; } printf("继续删除请按回车,结束请按空格:\n"); ch1=getchar(); //将回车键赋给CH1,否则num输完后再输入的回车键会赋给CH,因此用CH1填补。 ch=getchar(); } return head;} void choose(SUB *head){ SUB *p,*q; int a[5]; int num,total=0,i=0,j; printf("输入要选修的课程的编号,编号之间以空格分开,输完后以0结束\n"); scanf("%d",&num); while(num!=0){ for(p=head;p;p=p->next) if(p->num==num){ total=total+p->score; a=num; i++; } scanf("%d",&num); } if(totalnum==a[j]) printf("%s ",q->name); printf("\n");printf("***********************************\n");printf(" 作品 \n");printf(" 作品 \n");printf("***********************************\n"); }}void main(){ SUB *head=create_form(); savefile(head); prin(head); search(head); head=insert(head); //注意此处的必要性,函数insert的的返回值重新赋给head! savefileadd(head); printf("修改后的信息为:\n"); prin(head); head=del(head); //注意此处的必要性,函数del的的返回值重新赋给head! savefiledel(head); printf("修改后的课程信息为:\n"); prin(head); choose(head);}
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请问是哪里出错了,为什么运行之后只有一步??????????求大触来帮帮忙解答一下!!!!!!!!!!!!!!!! |