수다닷컴

제가 공부하다가 만들긴만들었는데
일단 머 실행은 잘되긴 잘되는데
다른사람이랑 만든거랑 쫌 다른데
이렇게 만들어도 상관은 없나요???

#include stdio.h
#include stdlib.h
#include memory.h
typedef struct dataAAA{
int DataA;
} DBA,*PBA;
typedef struct datalink{
int index;
DBA dbainfo;
struct datalink* pNext;
struct datalink* pPre;
}DBLINK,*PDBLINK;
DBLINK *pHead;
DBLINK *pEnd;
void init();
void input();
void inputdata(DBLINK* pDa);
DBLINK *FindPre(int nNumber);
DBLINK *FindNext(int nNumber);
void show();
void deletedata();
int main()
{
int in = 0;
init();
while(1)
{

printf(1.입력 2.삭제 3.출력 4.종료 :);
scanf(%d,&in);
if(in==1) input();
else if(in==2) deletedata();
else if(in==3) show();
else if(in==4) break;
}
return 0;
}
void init()
{
pHead = (DBLINK*)malloc(sizeof(DBLINK));
pEnd = (DBLINK*)malloc(sizeof(DBLINK));
memset(pHead,0,sizeof(DBLINK));
memset(pEnd,0,sizeof(DBLINK));
pHead-pNext = pEnd;
pHead-pPre = pEnd;

pEnd-pNext = pHead;
pEnd-pPre = pHead;
}
void show()
{
DBLINK *imsi = NULL;
imsi = pHead-pNext;
if(imsi)
{
printf(번호 데이터\n);
while(imsi != pEnd)
{
printf(%3d,imsi-index);
printf(%7d\n,imsi-dbainfo.DataA);
imsi = imsi-pNext;
}
}
}

void input()
{
DBLINK *pFindPos = NULL;
DBLINK *pPrePos = NULL;
DBLINK *pData = (DBLINK*)malloc(sizeof(DBLINK));

memset(pData,0,sizeof(pData));
inputdata(pData);
pFindPos = FindNext(pData-index);
pPrePos = FindPre(pData-index);
pData-pNext = pFindPos;
pData-pPre = pPrePos;
pPrePos-pNext = pData;
pFindPos-pPre = pData;
}
void inputdata(DBLINK* pda)
{
printf(번호 : );
scanf(%d,&pda-index);
printf(데이터 :);
scanf(%d,&pda-dbainfo.DataA);
}
DBLINK *FindNext(int nNumber)
{

DBLINK *pTemp = pHead-pNext;

while(pTemp != pEnd)
{
if(pTemp-index nNumber) break;
else pTemp = pTemp-pNext;
}
return pTemp;
}
DBLINK *FindPre(int nNumber)
{
DBLINK *pTemp = pHead-pNext;
DBLINK *pTempPre = pHead;
while(pTemp != pEnd)
{
if(pTemp-index nNumber)
{
pTempPre = pTemp;
pTemp = pTemp-pNext;
}
else break;
}
return pTempPre;
}
void deletedata()
{
int in;
DBLINK *pTemp = pHead-pNext;
printf(삭제하실 데이터 번호 : );
scanf(%d,&in);
while(pTemp != pEnd)
{
if(pTemp-index == in)
{
pTemp-pNext-pPre = pTemp-pPre;
pTemp-pPre-pNext = pTemp-pNext;
break;
}
else pTemp = pTemp-pNext;
}
}

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