createfile.c

利用C++和数据结构编写的图书管理系统!

void AppeDBaseRec(BookDbaseFile &df)
{
	int i;
	i=++df.len;
	printf("书号(4)  书   名(20)       作者名(8)   出版社(10)      分类(3)    藏书量\n");
	scanf("%s%s",df.BookDbase[i].bno,df.BookDbase[i].bname);
	scanf("%s%s",df.BookDbase[i].author,df.BookDbase[i].press);
	scanf("%s %d",df.BookDbase[i].sortno,&df.BookDbase[i].storenum);
    df.BookDbase[i].borrownum=0;
}
void ChangeBnoIdxF(BookDbaseFile &df, BnoIdxFile &bif)
{
	int i,j,k;
	char sh[8];
	i=df.len;
	strcpy(sh,df.BookDbase[i].bno);
	j=bif.len;
	k=1;
	while(j>=1)
	{
		if(strcmp(sh,bif.BnoIdx[j].bno)>0)
		{
			k=j+1;       
			break;
		}
		j--;
	}
	if(bif.len>0)
		 for(j=bif.len; j>=k;j--)
			   bif.BnoIdx[j+1]=bif.BnoIdx[j];
	strcpy(bif.BnoIdx[k].bno,sh);
	bif.BnoIdx[k].RecNo=i;
	bif.len++;
}
void ChangeLinkHeadF1(BookDbaseFile &df,LHFile1 &lhf1)
{
	int i,j,k,m;
	char sm[20];
	i=df.len;
	strcpy(sm,df.BookDbase[i].bname);
	j=1;
	k=0;
	while(j<=lhf1.len1)
	{
		if(strcmp(sm, lhf1.LHFrec1[j].bname)==0)
		{
			k=j;
			break;
		}
		j++;
	}
	if(k!=0)
	{
		df.BookDbase[i].namenext=lhf1.LHFrec1[k].lhead;
		lhf1.LHFrec1[k].lhead=i;
		lhf1.LHFrec1[k].RecNum++;
	}
	else
	{
		m=++lhf1.len1;
		df.BookDbase[i].namenext=0;
		lhf1.LHFrec1[m].lhead=i;
		lhf1.LHFrec1[m].RecNum=1;
		strcpy(lhf1.LHFrec1[m].bname,sm);
	}
}
void ChangeLinkHeadF2(BookDbaseFile &df, LHFile2 &lhf2)
{
	int i,j,k,m;
	char zz[8];
	i=df.len;
	strcpy(zz,df.BookDbase[i].author);
	j=1;
	k=0;
	while(j<=lhf2.len2)
	{
		if(strcmp(zz,lhf2.LHFrec2[j].author)==0)
		{
			k=j;
			break;
		}
		j++;
	}
	if(k!=0)
	{
		df.BookDbase[i].authnext=lhf2.LHFrec2[k].lhead;
		lhf2.LHFrec2[k].lhead=i;
		lhf2.LHFrec2[k].RecNum++;
	}
	else
	{
		m=++lhf2.len2;
		df.BookDbase[i].authnext=0;
		lhf2.LHFrec2[m].lhead=i;
		lhf2.LHFrec2[m].RecNum=1;
		strcpy(lhf2.LHFrec2[m].author,zz);
	}
}
void ChangeLinkHeadF3(BookDbaseFile &df, LHFile3 &lhf3)
{
	int i,j,k,m;
	char cbs[10];
	i=df.len;
	strcpy(cbs,df.BookDbase[i].press);
	j=1;
	k=0;
	while(j<=lhf3.len3)
	{
		if(strcmp(cbs, lhf3.LHFrec3[j].press)==0)
		{
			k=j;
			break;
		}
		j++;
	}
	if(k!=0)
	{
		df.BookDbase[i].prenext=lhf3.LHFrec3[k].lhead;
		lhf3.LHFrec3[k].lhead=i;
		lhf3.LHFrec3[k].RecNum++;
	}
	else
	{
		m=++lhf3.len3;
		df.BookDbase[i].prenext=0;
		lhf3.LHFrec3[m].lhead=i;
		lhf3.LHFrec3[m].RecNum=1;
		strcpy(lhf3.LHFrec3[m].press,cbs);
	}
}
void  CreateBook(BookDbaseFile &bf,BnoIdxFile &bif,LHFile1 &f1,LHFile2 &f2,LHFile3 &f3)
{
	char yn='y';
     while(yn=='y'||yn=='Y'){
		AppeDBaseRec(bf);
        ChangeBnoIdxF(bf,bif);
	    ChangeLinkHeadF1(bf,f1);
		ChangeLinkHeadF2(bf,f2);
		ChangeLinkHeadF3(bf,f3);
		cout<<"继续输入吗? y/n: "<<endl;
		scanf("%s",&yn);
    }

}