本文实例为大家分享了C语言通讯录管理系统开发的具体代码，供大家参考，具体内容如下
程序介绍
通讯录管理系统主要是实现对联系人的增、删、查以及显示的基本操作。用户可以根据自己的需要在功能菜单中选择相应的操作，实现对联系人的快速管理。
操作流程
用户在编译完成后会产生一个系统的可执行文件，用户只要双击可执行文件就可以进入系统，进入系统的功能选择菜单，如图所示，用户根据自己的需要选择相应的操作。
代码
#include<stdio.h>
#include<stdlib.h>
#include<dos.h>
#include <conio.h>
#include<string.h>
struct Info
{
char name[15];
char city[10];
char province[10];
char state[10];
char tel[15];
};
typedef struct node
{
struct Info data;
struct node *next;
}Node,*link;
void stringinput(char *t,int lens,char *notice)
{
char n[50];
do{
printf("%s",notice);
scanf("%s",&n);
if(strlen(n)>lens)
printf("\n exceed the required length! \n");
}while(strlen(n)>lens);
strcpy(t,n);
}
void enter(link l)
{
Node *p,*q;
q=l;
while(1)
{
p=(Node*)malloc(sizeof(Node));
if(!p)
{
printf("memory malloc fail\n");
return;
}
stringinput(p->data.name,15,"enter name:");
if(strcmp(p->data.name,"0")==0)
break;
stringinput(p->data.city,10,"enter city:");
stringinput(p->data.province,10,"enter province:");
stringinput(p->data.state,10,"enter status:");
stringinput(p->data.tel,15,"enter telephone:");
p->next=NULL;
q->next=p;
q=p;
}
}
void del(link l)
{
Node *p,*q;
char s[20];
q=l;
p=q->next;
printf("enter name:");
scanf("%s",s);
while(p)
{
if(strcmp(s,p->data.name)==0)
{
q->next=p->next;
free(p);
printf("delete successfully!");
break;
}
else
{
q=p;
p=q->next;
}
}
getch();
}
void display(Node *p)
{
printf("MESSAGE \n");
printf("name:%15s\n",p->data.name);
printf("city: %10s\n",p->data.city);
printf("province:%10s\n",p->data.province);
printf("state: %10s\n",p->data.state);
printf("telphone:%15s\n",p->data.tel);
}
void search(link l)
{
char name[20];
Node *p;
p=l->next;
printf("enter name to find:");
scanf("%s",name);
while(p)
{
if(strcmp(p->data.name,name)==0)
{
display(p);
getch();
break;
}
else
p=p->next;
}
}
void list(link l)
{
Node *p;
p=l->next;
while(p!=NULL)
{
display(p);
p=p->next;
}
getch();
}
void save(link l)
{
Node *p;
FILE *fp;
p=l->next;
if((fp=fopen("f:\\adresslist","wb"))==NULL)
{
printf("can not open file\n");
exit(1);
}
printf("\nSaving file\n");
while(p)
{
fwrite(p,sizeof(Node),1,fp);
p=p->next;
}
fclose(fp);
getch();
}
void load(link l)
{
Node *p,*r;
FILE *fp;
l->next=NULL;
r=l;
if((fp=fopen("f:\\adresslist","rb"))==NULL)
{
printf("can not open file\n");
exit(1);
};
printf("\nLoading file\n");
while(!feof(fp))
{
p=(Node*)malloc(sizeof(Node));
if(!p)
{
printf("memory malloc fail!");
return;
}
if(fread(p,sizeof(Node),1,fp)!=1)
break;
else
{
p->next=NULL;
r->next=p;
r=p;
}
}
fclose(fp);
getch();
}
int menu_select()
{
int i;
printf("\n\n\t *************************ADDRESS LIST*************************\n");
printf("\t|* 1.input record *|\n");
printf("\t|* 2.delete record *|\n");
printf("\t|* 3.list record *|\n");
printf("\t|* 4.search record *|\n");
printf("\t|* 5.save record *|\n");
printf("\t|* 6.load record *|\n");
printf("\t|* 7.Quit *|\n");
printf("\t **************************************************************\n");
do
{
printf("\n\tEnter your choice:");
scanf("%d",&i);
}while(i<0||i>7);
return i;
}
main()
{
link l;
l=(Node*)malloc(sizeof(Node));
if(!l)
{
printf("\n allocate memory failure ");
return 0;
}
l->next=NULL;
system("cls");
while(1)
{
system("cls");
switch(menu_select())
{
case 1:
enter(l);
break;
case 2:
del(l);
break;
case 3:
list(l);
break;
case 4:
search(l);
break;
case 5:
save(l);
break;
case 6:
load(l);
break;
case 7:
exit(0);
}
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
