图书销售系统 C语言 C 数据结构 链表 课程设计.docVIP

#includestdio.h #includestdlib.h #includememory.h #includestring.h #includeconio.h /* ?úê?D??￠?á11?¨ò? */ typedef struct Book { char id??3￡2??; char sn??3￡2??; char name??3￡2??; char author??3￡2??; char type??3￡2??; char press??3￡2??; char publish_time??3￡2??; char price??3￡2??; char sale_time??3￡2??; char salesman??3￡2??; char number??3￡2??; struct Book* next; /* ???òá′±íμ???￡-???úμ? */ }Book; /* á′±íí· */ Book* head = NULL; /* ????ì?êy */ int size = 0; /* ′ó?ü?ìμ?μ?￡-??êy?Y */ void get_item(char* name, char* value) { printf(%s:, name); scanf(%s, value); } /* ê?è?￡-ì?D??í?? */ Book* new_record() { Book* book = malloc(sizeof(Book)); memset(book, 0, sizeof(Book)); fflush(stdin); get_item(id, book-id); get_item(sn, book-sn); get_item(name, book-name); get_item(author, book-author); get_item(type, book-type); get_item(press, book-press); get_item(publish time, book-publish_time); get_item(price, book-price); get_item(sale time, book-sale_time); get_item(salesman, book-salesman); get_item(number, book-number); return book; } /* ±￡′?￡-??êy?Y */ void save_item(FILE* fp, char* value) { fwrite(value, 3￡2, ￡±, fp); } /* ′ó???t?áè?￡-??êy?Y */ void load_item(FILE* fp, char* value) { fread(value, 3￡2, ￡±, fp); } /* ±￡′?μ????t */ void save() { Book* book = head; FILE* fp = fopen(BookSale.txt, wb); fwrite(size, sizeof(size), ￡±, fp); while(book) { save_item(fp, book-id); save_item(fp, book-sn); save_item(fp, book-name); save_item(fp, book-author); save_item(fp, book-type); save_item(fp, book-press); save_item(fp, book-publish_time); save_item(fp, book-price); save_item(fp, book-sale_time); save_item(fp, book-salesman); save_item(fp, book-number); book = book-next; } fclose(fp); } /* ?òá′±í?Dìí?óD??í?? */ void add_record(Book* book) { if(head==NULL) { head = book; } else { Book* temp = head; while(temp-next) temp = temp-next; temp-next = book; } } /* ′ó???t?D?áè??ùóD???? */ void load() { int i;