// XuLyFile.cpp : Defines the entry point for the console application.

// LH: 01698316659

#include "stdafx.h"

#include "stdio.h"

#include "stdlib.h"

typedef struct Link{

int data;

Link*next;

}Link;

Link*pHead=NULL;

FILE*pfile;

char*ptenfile="Data.TxT";//Dinh nghia con tro ten file

void them_dau_link(int dau);

void them_cuoi_link(int cuoi);

void ghi_file();

void doc_file();

void nhap();

{

int chon=0;

printf("Nhap 1 de tao moi danh sach.

Nhap 2 de them phan tu va'o danh sa'ch cu~.

Nhap bat ky neu muon ket thuc.");

printf("

? ");

scanf( "%d",&chon);

switch(chon)

{

case 1:

pfile=fopen(ptenfile,"w");//Tao moi file

fclose(pfile);

nhap();

ghi_file();

break;

case 2:

doc_file();

nhap();

pfile=fopen(ptenfile,"w");//Tao moi file

fclose(pfile);

ghi_file();

}

}//Ket thuc ham chinh

void them_dau_link(int dau)//Bat dau ham them du lieu vao dau link

{

Link*moi; /* Con tro toi phan tu moi */

if((moi =(Link*)malloc(sizeof(Link))) != NULL)

{

moi->data=dau;

moi->next=pHead;

pHead=moi;

}

else

printf(" %d khong the them. Bo nho day!

");//Ket thuc them vao dau

}//Ket thuc ham them_dau_link

void them_cuoi_link(int cuoi) //Bat dau ham them cuoi

{

Link*moi;

Link*truoc;

Link*timCuoi;

if((moi=(Link*)malloc(sizeof(Link)))!=NULL)

{

moi->data=cuoi;

moi->next=truoc=NULL;

timCuoi=pHead;

while(timCuoi!=NULL)

{

truoc=timCuoi;

timCuoi=timCuoi->next;

}

if(truoc==NULL)

pHead=moi;

else

truoc->next=moi;

}

else

printf("Bo nho day!Khong the them!!!

");

} //Ket thuc ham them cuoi

void ghi_file()//Bat dau ham ghi data vao file

{

Link*batdau=pHead;

while(batdau!=NULL)

{

if((pfile=fopen(ptenfile,"a"))!=NULL)

fprintf(pfile,"%d

",batdau->data);

else

{

printf("Loi! Khong ghi duoc du lieu vao file

");

return;

}

batdau=batdau->next;

}

fclose(pfile);

}//Ket thuc ham ghi data vao file

void doc_file()//Bat dau ham doc data tu file vao link

{

int value;

if((pfile=fopen(ptenfile,"r"))!=NULL)

{

fscanf(pfile,"%d",&value);

while(!feof(pfile))

{

them_cuoi_link(value);

fscanf(pfile,"%d",&value);

}

fclose(pfile);

}

else

{

printf("Khong mo duoc tep hoac tep khong ton tai!

");//?????????????????

return;

}

} // Ket thuc ham doc

void nhap()//Bat dau ham nhap du lieu de them vao link

{

char dk='y';

while(dk=='y'||dk=='Y')

{

printf("Nhap gia tri can them: ");

fflush(stdin);

scanf("%d",&temp);

them_dau_link(temp);

do

{

printf("Ban muon them tiep khong(Y/N)?");

fflush(stdin);//Xoa bo nho nhap truoc do

scanf("%c",&dk);

}

while(dk!='y'&&dk!='Y'&&dk!='n'&&dk!='N');

}

} //Ket thuc ham nhap