链表通讯录

#include<stdio.h>

#include<stdlib.h>

#include<sys/types.h>

#include<sys/stat.h>

#include<fcntl.h>

struct addressbook

{

int num;

char name[20];

char tel[20];

char email[20];

char qq[20];

struct addressbook *next;

};

typedef struct addressbook Addressbook;

typedef struct addressbook *Link;

int Main_Menu();

void Add_Recort(Link *head,Link new_node);

void Delete_Recort(Link *head);

void Scan_Recort(Link *head);

void Search_Recort(Link *head);

void Amend_Recort(Link *head);

/********鍒涘缓閾捐〃澶?******/

void create_link(Link *head)

{

*head = NULL;

}   

/********涓诲嚱鏁?*******/

int main()

{

int num;

Link head = NULL;

Link new_node = NULL;

create_link(&head);

printf("***********************娆㈣繋杩涘叆閫氳褰曠郴缁?**********************\n");

while(1)

{

num = Main_Menu();

switch(num)

{

case 0 : exit(0);

case 1 : Add_Recort(&head,new_node);break;

case 2 : Delete_Recort(&head);break;

case 3 : Scan_Recort(&head);break;

case 4 : Search_Recort(&head);break;

   case 5 : Amend_Recort(&head);break;

default : printf("There is no such option!\n");

 break;

}

}

}

/********涓昏彍鍗曞嚱鏁?******/

int Main_Menu()

{

int n;

printf("          *****************MENU****************   \n");

printf("                      1.娣诲姞鑱旂郴浜?        \n");

printf("                      2.鍒犻櫎鑱旂郴浜?        \n");

printf("                      3.鏌ョ湅鑱旂郴浜?        \n");

printf("                      4.鎼滅储鑱旂郴浜?        \n");

printf("                      5.淇敼鑱旂郴浜?        \n");

printf("                      0.閫€鍑洪€氳褰?        \n");

printf("          *************************************   \n");

printf("                Enter your option <0-5>:");

    scanf("%d",&n);

return n;

}

/********娣诲姞鑱旂郴浜?*******/

void Add_Recort(Link *head,Link new_node)

{

Link tmp;

    

new_node = (Link)malloc(sizeof(Addressbook));

if(new_node == NULL)

{

printf("malloc error!\n");

exit(-1);

}

printf("**********************娣诲姞鑱旂郴浜?*********************\n");

tmp = *head;

if(*head == NULL)

{

printf("           搴忓彿:");

   scanf("%d",&new_node->num);

        printf("           鑱旂郴浜?");

scanf("%s",new_node->name);

printf("           鐢佃瘽:",tmp->tel);

scanf("%s",new_node->tel);

printf("           閭:",tmp->email);

scanf("%s",new_node->email);

printf("           QQ:",tmp->qq);

scanf("%s",new_node->qq);

   write(fd,new_node,sizeof(new_node));

new_node->next = *head;

*head = new_node;

close(fd);

printf("        娣诲姞鎴愬姛锛乗n");

}

else

{

while(tmp->next != NULL)

{

tmp = tmp->next;

}

printf("           搴忓彿:");

   scanf("%d",&new_node->num);

        printf("           鑱旂郴浜?");

scanf("%s",new_node->name);

printf("           鐢佃瘽:",tmp->tel);

scanf("%s",new_node->tel);

printf("           閭:",tmp->email);

scanf("%s",new_node->email);

printf("           QQ:",tmp->qq);

scanf("%s",new_node->qq);

tmp->next = new_node;

new_node->next = NULL;

printf("        娣诲姞鎴愬姛锛乗n");

}

}

/********鍒犻櫎鑱旂郴浜?*******/

void Delete_Recort(Link *head)

{

Link tmp;

Link p;

int num;

tmp = p = *head;

printf("************************鍒犻櫎鑱旂郴浜?*******************\n");

printf("杈撳叆瑕佸垹闄よ仈绯讳汉鐨勫簭鍙?");

scanf("%d",&num);

if(*head == NULL)

{

printf("addressbook is empty!\n");

        return;

}

while(tmp->num != num && tmp->next != NULL)

{

p = tmp;

tmp = tmp->next;

}

if(tmp->num == num)

{

if(tmp == *head)

{

*head = tmp->next;

free(tmp);

printf("       鍒犻櫎鎴愬姛锛乗n");

}

else

{

p->next = tmp->next;

free(tmp);

printf("       鍒犻櫎鎴愬姛锛乗n");

}

}

else

{

printf("no such recort!\n");

}

}

/*******鏌ョ湅鑱旂郴浜?*******/

void Scan_Recort(Link *head)

{

Link tmp=*head;

printf("**********************鏌ョ湅鑱旂郴浜?*********************\n");

if(*head == NULL)

{

printf("addressbook is empty!\n");

        return;

}

while(tmp != NULL)

{

printf("       *******************\n");

printf("             搴忓彿:%d\n",tmp->num);

printf("             濮撳悕:%s\n",tmp->name);

printf("             鐢佃瘽:%s\n",tmp->tel);

printf("             email:%s\n",tmp->email);

printf("             QQ:%s\n",tmp->qq);

printf("       *******************\n");

tmp = tmp->next;

}

}

/*******鎼滅储鑱旂郴浜?*******/

void Search_Recort(Link *head)

{

int num;

Link tmp;

printf("**********************鎼滅储鑱旂郴浜?*******************\n");

tmp = *head;

printf("       杈撳叆瑕佹悳绱㈣仈绯讳汉鐨勫簭鍙?");

scanf("%d",&num);

while(tmp->num != num && tmp->next != NULL)

{

tmp = tmp->next;

}

if(tmp->num == num)

{

printf("          搴忓彿:%d\n",tmp->num);

        printf("          鑱旂郴浜?%s\n",tmp->name);

printf("          鐢佃瘽:%s\n",tmp->tel);

printf("          閭:%s\n",tmp->email);

printf("          QQ:%s\n",tmp->qq);

}

else

{

printf("no such recort!\n");

return;

}

}

/*******淇敼鑱旂郴浜?******/

void Amend_Recort(Link *head)

{

int num,n;

Link tmp;

tmp = *head;

printf("***********************淇敼鑱旂郴浜?********************\n");

printf("        杈撳叆瑕佷慨鏀圭殑鑱旂郴浜哄簭鍙?");

scanf("%d",&num);

while(tmp->num != num && tmp->next != NULL)

{

tmp = tmp->next;

}

if(tmp->num == num)

{

        printf("        1.搴忓彿\n");

printf("        2.濮撳悕\n");

printf("        3.鐢佃瘽\n");

printf("        4.email\n");

printf("        5.QQ\n");

printf("    杈撳叆瑕佷慨鏀圭殑搴忓彿:");

        scanf("%d",&n);

printf("    杈撳叆瑕佷慨鏀圭殑鍐呭:");

switch(n)

{

case 1:scanf("%d",&tmp->num);break;

case 2:scanf("%s",tmp->name);break;

case 3:scanf("%s",tmp->tel);break;

case 4:scanf("%s",tmp->email);break;

case 5:scanf("%s",tmp->qq);break;

default:

printf("no such option!\n");

break;

}

printf("    淇敼鎴愬姛锛乗n");

}

else

{

printf("no such recort!\n");

}

}