createfile.c

C做的图书管理系统 C做的图书管理系统

#include "TypeDef.h"
#include "Function.h"
#include <stdio.h>
#include <string.h>

//*****添加图书主数据库记录************************
void AddDbRec(BookDbFile *bf, BnoIdxFile *bif, BnameIdxFile *bnif, BauthorIdxFile *baif, BpressIdxFile *bpif)
{
	char choice;
	int flag = 0; //是否继续输入
	BookRecType newBook;

	while(flag == 0)
	{
		system("cls");
		printf("请输入书号(4位)：");
		scanf("%s", newBook.bno);
		while(strlen(newBook.bno) != 4)
		{
			printf("输入书号位数不正确，请重新输入：");
			scanf("%s", newBook.bno);
		}
		while(BinSearch(bif, newBook.bno) != 0)
		{
			printf("您输入的书号已存在，主键不能重复，请重新输入：");
			scanf("%s", newBook.bno);
			while(strlen(newBook.bno) != 4)
			{
				printf("输入书号位数不正确，请重新输入：");
				scanf("%s", newBook.bno);
			}
		}
		printf("请输入书名：");
		scanf("%s", newBook.bname);
		printf("请输入作者：");
		scanf("%s", newBook.author);
		printf("请输入出版社：");
		scanf("%s", newBook.press);
		printf("请输入分类(3位)：");
		scanf("%s", newBook.sortno);
		while(strlen(newBook.sortno) != 3)
		{
			printf("输入分类号位数不正确，请重新输入：");
			scanf("%s", newBook.sortno);
		}
		printf("请输入藏书量：");
		scanf("%d", &newBook.storenum);

		newBook.borrownum = 0;
		
		ChangeBnoIdx(&newBook, bif, bf->len + 1);
		ChangeBnameIdx(&newBook, bnif, bf->len + 1);
		ChangeBauthorIdx(&newBook, baif, bf->len + 1);
		ChangeBpressIdx(&newBook, bpif, bf->len + 1);
		bf->BookDbase[bf->len + 1] = newBook;
		bf->len ++;

		while(1)
		{
			printf("是否继续添加书目？(Y/N)");
			choice = getchar();
			if(choice == 10) //判断接收的是否为回车符
			{
				choice = getchar();
			}
			if(choice == 'Y' || choice == 'y')
			{
				break;
			}
			else if(choice == 'N' || choice == 'n')
			{
				flag = 1;
				break;
			}			
		}
	}
}
//*************************************************

//*****修改书号索引表******************************
void ChangeBnoIdx(BookRecType *newbook, BnoIdxFile *bif, int storeno)
{
	strcpy(bif->BnoIdx[bif->len].bno, newbook->bno);
	bif->BnoIdx[bif->len].RecNo = storeno;
	bif->len++;
}
//*************************************************

//*****修改书名索引以及书名链头索引表**************
void ChangeBnameIdx(BookRecType *newbook, BnameIdxFile *bnif, int storeno)
{
	int i = 0;

	if(BnameFind(bnif, newbook->bname) > 0) //已存在同名的书
	{
		for(i = 0; i < bnif->len; ++i)
		{
			if(strcmp(newbook->bname, bnif->BnameIdx[i].bname))
			{
				newbook->namenext = bnif->BnameIdx[i].head;
				bnif->BnameIdx[i].head = storeno;
				bnif->BnameIdx[i].RecNum++;
				break;
			}
		}
	}
	else //不存在同名的书
	{
		strcpy(bnif->BnameIdx[bnif->len].bname, newbook->bname);
		bnif->BnameIdx[bnif->len].RecNum = 1;
		bnif->BnameIdx[bnif->len].head = storeno;
		newbook->namenext = 0;
		bnif->len++;
	}
}
//*************************************************

//*****修改作者索引以及作者链头索引表**************
void ChangeBauthorIdx(BookRecType *newbook, BauthorIdxFile *baif, int storeno)
{
	int i = 0;

	if(BauthorFind(baif, newbook->author) > 0) //已存在同作者的书
	{
		for(i = 0; i < baif->len; ++i)
		{
			if(strcmp(newbook->author, baif->BauthorIdx[i].author) == 0)
			{
				newbook->authnext = baif->BauthorIdx[i].head;
				baif->BauthorIdx[i].head = storeno;
				baif->BauthorIdx[i].RecNum++;
				break;
			}
		}
	}
	else //不存在同作者的书
	{
		strcpy(baif->BauthorIdx[baif->len].author, newbook->author);
		baif->BauthorIdx[baif->len].RecNum = 1;
		baif->BauthorIdx[baif->len].head = storeno;
		newbook->authnext = 0;
		baif->len++;
	}
}
//*************************************************

//*****修改出版社索引以及出版社链头索引表**********
void ChangeBpressIdx(BookRecType *newbook, BpressIdxFile *bpif, int storeno)
{
	int i = 0;

	if(BpressFind(bpif, newbook->press) > 0) //已存在同出版社的书
	{
		for(i = 0; i < bpif->len; ++i)
		{
			if(strcmp(newbook->press, bpif->BpressIdx[i].press) == 0)
			{
				newbook->prenext = bpif->BpressIdx[i].head;
				bpif->BpressIdx[i].head = storeno;
				bpif->BpressIdx[i].RecNum++;
				break;
			}
		}
	}
	else //不存在同出版社的书
	{
		strcpy(bpif->BpressIdx[bpif->len].press, newbook->press);
		bpif->BpressIdx[bpif->len].RecNum = 1;
		bpif->BpressIdx[bpif->len].head = storeno;
		newbook->prenext = 0;
		bpif->len++;
	}
}
//*************************************************