수다닷컴

질문 제목 : 링크드리스트 파일 로드에관한 질문..fwrite로 저장을했고 문제는 로드후에 추가를해서 추가가되게 링크드리스에 넣어야된다는건데. 막혀서 하질 못하ㅣ고잇네요 c파일올릴테니 누가 좀도와주세요!!ㅜ#include stdio.h
#include malloc.h
#include string.h
#include stdlib.h
#define buflen 4096
typedef struct addresslist {
char name[20];
char address[20];
char number[20];
struct addresslist *next;
} addresslist;

void load();
void listdata(addresslist *);
addresslist *enterdata();
addresslist *listtop = null;
addresslist *getlastdata(addresslist*);
addresslist *adddata(addresslist *, addresslist *);
addresslist *save(addresslist *);
addresslist *getdata(addresslist *,int);
addresslist *insertdata(addresslist *,addresslist *);
addresslist *deletedata(addresslist *,int);
addresslist *cleardata(addresslist *);
void menu()
{
printf(\t━━━━━목 록━━━━━\n);
printf(\t━━━━━━━━━━━━━\n);
printf(\t 1.data 추가 \n);
printf(\t 2.data select 삽입 \n);
printf(\t 3.data select 삭제 \n);
printf(\t 4.모든 data삭제 \n);
printf(\t 5.data 조회 \n);
printf(\t 6.save \n);
printf(\t 7.load \n);
printf(\t 8.end(exit) \n);
printf(\t━━━━━━━━━━━━━\n);
printf(\t선택하실 번호를 넣어주세요:);

}
void select()
{
addresslist *inputdata;
int i,index;
scanf(%d,&i);
fflush(stdin);

if(i==1)
{
inputdata = enterdata();
listtop = adddata(listtop, inputdata);
}
else if(i==2)
{
printf(몇번째 데이터 다음에 삽입하시겠습니까?);
scanf(%d,&index);
inputdata = enterdata();
listtop = insertdata(listtop,index,inputdata);
}
else if(i==3)
{
printf(몇번째 데이터를 삭제하시겠습니까?);
scanf(%d,&index);
listtop= deletedata(listtop,index);
}
else if(i==4)
{
listtop=cleardata(listtop);
}
else if(i==5)
{
listdata(listtop);
}
else if(i==6)
{
save(listtop);
}
else if(i==7)
{
load(listtop);
}
else if(i==8)
{
exit(1);
}
else
{
printf(문항에 맞게 다시 재입력해주세요: );
select();
}

}
void listdata(addresslist *p)
{
int i=1;
printf(\n\n\n\n\tno. \t[name]\t\t[e-mail address]\t[phone number]\n);
printf(\t━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n);
while(p != null){
printf();
//printf(%04d [name] : \t%s [e-mail address] : \t%s [phone number] : \t%s\n\n\n\n,i, p-name, p-address, p-number);
printf(\t%04d \t%s \t%s \t%s\n,i, p-name, p-address, p-number);

p = p-next;
i++;
}
printf(\n);
}
//index 함수(지정된 번호의 요소를 나태내는 포인터를 반환)
addresslist *getdata(addresslist *p,int index)
{
int i;
if(index 1)
return null;
for(i=1; iindex; i++)
{
p = p-next;
if(p == null && i index)
return null;
}
return p;
}addresslist *enterdata()
{
addresslist *p;
p = (addresslist *)malloc(sizeof(addresslist));
printf(\t주소록 입력사항을 적어주세요\n);
printf(\t┏━━━━━━━━━━━━━━━━━\n);
printf(\t┃이름\t\t:);
scanf(%s, &(p-name));
printf(\t┃━━━━━━━━━━━━━━━━━\n);
printf(\t┃e-mait┃e-mail주소\t:);
scanf(%s, &(p-address));
printf(\t┃━━━━━━━━━━━━━━━━━\n);
printf(\t┃핸드폰번호\t:);
scanf(%s, &(p-number));
printf(\t┗━━━━━━━━━━━━━━━━━\n);
printf(\n);
return p;
}
addresslist *getlastdata(addresslist *p)
{
if(!p)
return null;
while(p-next != null)
p = p-next;
return p;
}
addresslist *adddata(addresslist *listtop, addresslist *newdata)
{
addresslist *p;
p = getlastdata(listtop);
newdata-next = null;
if(p == null)
return newdata;
p-next = newdata;
return listtop;
}
addresslist *insertdata(addresslist *listtop,int index, addresslist *newdata)
{
addresslist *p;
p = getdata(listtop,index);
//newdata-next = null;
if(p == null)
{
newdata-next =listtop;
return newdata;
}
newdata-next = p-next;
p-next = newdata;
return listtop;
}
addresslist *deletedata(addresslist *listtop,int index)
{
addresslist *del,*next,*pre;

if(index1 || listtop ==null)
return listtop;
if(index ==1)
{
del =getdata(listtop,index);
next = del-next;
free(del);
return next;
}
pre =getdata(listtop,index-1);
del=pre-next;
next=del-next;
free(del);
pre-next = next;
return listtop;

}
addresslist *cleardata(addresslist *p)
{
while(p)
p =deletedata(p,1);
return p;
}
addresslist *save(addresslist *p)
{
file *fp;

int i=1;
fp = fopen(list.dat,wb);
if(fp ==null)
return;

p =listtop;
//fprintf(fp,\n\n\n\n\tno.\t[name]\t\t[e-mail address]\t[phone number]\n);
//fprintf(fp,\t━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n);
while(p != null)
{
//fprintf(fp,\t%04d \t%s \t%s \t%s\n,i, p-name, p-address, p-number);
fwrite(p,sizeof(*p),1,fp);
p = p-next;
//i++;
//p = p-next;
}
fclose(fp);
printf(저장이 되었으니 프로그램을 종료 합니다.\n);
exit(0);
}
void load()
{
file *fp;
addresslist *p;
//addresslist *str[200];
fp=fopen(list.dat,rb);
if(fp ==null)
return;
//while(fread(p,sizeof(*p),1,fp) != 0)
//{
//adddata(p-name,p-address,p-number);
//}
while(!feof(fp))
{
fread(p,sizeof(*p),1,fp);
}
//while(!fgets(str,200,fp)==null){
//printf(%s,str);

//fscanf(fp,%s,str);
fclose(fp);
//printf(%s,str);
}
main()
{
while(1)
{
menu();
select();
}
}

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