学生成绩管理系统c - 范文无忧网

[学生信息管理系统C语言怎么做]跟别人问重复了，你们难道是一个老师教的啊？网上很多类似的，你参考下：#include#includestruct student { char name[30]; float math; float chinese; float english; float ave...+阅读

#include ＂stdio.h＂ #include #include #include struct book{ char number[21]; char shuming[30]; int shuliang; int jiage; char zhuanye[20]; char zuozhe[26]; char chubanshe[20]; char beizhu[100]; struct book *next; }; struct book *creat（) /*创建链表*/ { struct book *p,*head,*end; head=end=p=(struct book *)malloc(sizeof(struct book)); printf（＂输入教材编号为0结束输入，每项信息都必须输入内容。\n＂）; do { printf(＂\n教材编号：＂)； gets(p->number); if(strcmp(p->number,＂0＂)==0){ end->next=NULL; return head;} end=p; printf(＂\n教材名称：＂)； gets(p->shuming); printf(＂\n教材数量：＂)； scanf(＂%d＂,&p->shuliang); printf(＂\n教材价格：＂)； scanf(＂%d＂,&p->jiage); getchar(); printf(＂\n教材专业：＂)； gets(p->zhuanye); printf(＂\n教材作者：＂)； gets(p->zuozhe); printf(＂\n教材出版社：＂)； gets(p->chubanshe); printf(＂\n备注：＂)； gets(p->beizhu); p=(struct book *)malloc(sizeof(struct book)); end->next=p; }while(1); } void save(struct book *head) /*保存链表*/ {FILE *fp; struct book *p; char filename[30]; int ch; printf（＂请输入“文件名.后缀”：＂）； scanf(＂%s＂,filename); if((fp=fopen(filename,＂r＂))!=NULL) { printf(＂\n该文件已存在，是否覆盖？1，是 2，否＂)； scanf(＂%d＂,&ch); if(ch!=1) return; } if((fp=fopen(filename,＂w＂))==NULL) { printf(＂\n文件保存失败＂)；getchar();return;} p=head; do{ fprintf(fp,＂\n%s＂,p->number); fprintf(fp,＂\n%s＂,p->shuming);; fprintf(fp,＂\n%d＂,p->shuliang); fprintf(fp,＂\n%d＂,p->jiage); fprintf(fp,＂\n%s＂,p->zhuanye); fprintf(fp,＂\n%s＂,p->zuozhe); fprintf(fp,＂\n%s＂,p->chubanshe); fprintf(fp,＂\n%s＂,p->beizhu); p=p->next; }while(p!=NULL); fprintf(fp,＂ over＂); printf(＂\n成功保存＂)； getchar(); getchar(); fclose(fp); } void print(struct book *head) /*输出链表*/ { struct book *p; p=head; if(p==NULL) { printf（＂未打开任何文件，无法显示＂）； getch();return;} do{ printf(＂\n\n教材编号：%s＂,p->number); printf(＂\n教材名称：%s＂,p->shuming);; printf(＂\n数量：%d＂,p->shuliang); printf(＂\n价格：%d＂,p->jiage); printf(＂\n专业：%s＂,p->zhuanye); printf(＂\n作者：%s＂,p->zuozhe); printf(＂\n出版社：%s＂,p->chubanshe); printf(＂\n备注：%s＂,p->beizhu); p=p->next; }while(p!=NULL); } struct book *openfile（) /*打开文件*/ {struct book *p,*f,*head; FILE *fp; char filename[20]; printf(＂\n请输入路径，文件名，和后缀)：＂）； scanf(＂%s＂,filename); if((fp=fopen(filename,＂r＂))==NULL){ printf(＂\n文件找不到，请检查是否有该文件和路径是否正确＂)；getchar();return NULL;} head=f=p=(struct book *)malloc(sizeof(struct book)); fscanf(fp,＂%s%s%d%d%s%s%s%s＂,p->number,p->shuming,&p->shuliang,&p->jiage,p->zhuanye,p->zuozhe,p->chubanshe,p->beizhu); while(!feof(fp)) { p=(struct book *)malloc(sizeof(struct book)); f->next=p; fscanf(fp,＂%s%s%d%d%s%s%s%s＂,p->number,p->shuming,&p->shuliang,&p->jiage,p->zhuanye,p->zuozhe,p->chubanshe,p->beizhu); if(strcmp(p->number,＂over＂)==0){ f->next=NULL; printf(＂\n文件打开成功，可以显示此信息＂)；getchar(); return head; } f=p; } return head; } void namesort(struct book *head) /*按教材名称排序*/ { struct book *p,*t,*f,*h; char ch[20]; int i; h=t=f=p=head; if(head==NULL) {printf（＂未打开任何文件＂）；getchar();return; }; f=p->next; for(p=head;p->next!=NULL;p=p->next) { for(t=head,f=t->next;t->next!=NULL;f=f->next,t=t->next) { if(strcmp(t->shuming,f->shuming)>0) { strcpy(ch,t->number ); strcpy(t->number,f->number); strcpy(f->number,ch); strcpy(ch,t->shuming ); strcpy(t->shuming,f->shuming); strcpy(f->shuming,ch); i=t->shuliang ; t->shuliang=f->shuliang; f->shuliang=i; i=t->jiage ; t->jiage=f->jiage; f->jiage=i; strcpy(ch,t->zhuanye); strcpy(t->zhuanye,f->zhuanye); strcpy(f->zhuanye,ch); strcpy(ch,t->zuozhe); strcpy(t->zuozhe,f->zuozhe); strcpy(f->zuozhe,ch); strcpy(ch,t->chubanshe); strcpy(t->chubanshe,f->chubanshe); strcpy(f->chubanshe,ch); strcpy(ch,t->beizhu); strcpy(t->beizhu,f->beizhu); strcpy(f->beizhu,ch); } } } print(h); } void chubanshesort(struct book *head) /*按出版社排序*/ { struct book *p,*t,*f,*h; char ch[20]; int i; h=t=f=p=head; if(head==NULL) {printf（＂未打开任何文件＂）；getchar();return; } f=p->next; for(p=head;p->next!=NULL;p=p->next) { for(t=head,f=t->next;t->next!=NULL;f=f->next,t=t->next) { if(strcmp(t->chubanshe,f->chubanshe)>0) { strcpy(ch,t->number ); strcpy(t->number,f->number); strcpy(f->number,ch); strcpy(ch,t->shuming ); strcpy(t->shuming,f->shuming); strcpy(f->shuming,ch); i=t->shuliang ; t->shuliang=f->shuliang; f->shuliang=i; i=t->jiage ; t->jiage=f->jiage; f->jiage=i; strcpy(ch,t->zhuanye); strcpy(t->zhuanye,f->zhuanye); strcpy(f->zhuanye,ch); strcpy(ch,t->zuozhe); strcpy(t->zuozhe,f->zuozhe); strcpy(f->zuozhe,ch); strcpy(ch,t->chubanshe); ...