C语言通讯录管理系统完整版

C语言实现了通讯录的录入信息、保存信息、插入、删除、排序、查找、单个显示等功能。。

完整的代码如下：

#include <stdio.h>
#include <malloc.h> //得到指向大小为Size的内存区域的首字节的指针//
#include <string.h>
#include <stdlib.h> //标准库函数//
#define NULL 0
#define LEN sizeof(struct address_list) //计算字节//
int n;
struct address_list
{
 char name[30]; //名字
 char work[30]; //职业
 char handset[30]; //手机
 char email[30]; //电子邮件
 char address[30]; //通讯地址
 struct address_list *next;
};
struct address_list *shifang(struct address_list *head); // 释放内存函数声明
//创建函数，不带头结点的链表
struct address_list *creat(void)
{
 struct address_list *head,*p1,*p2;
 char name[20];
 n=0;
 p1=(struct address_list *)malloc(LEN);
 p2=p1; //强制内存转换
 printf("请输入通讯录的内容!\n姓名输入为0时表示创建完毕!\n");
 printf("请输入姓名:");
 gets(name);
 if(strcmp(name,"0")!=0)
 {
 strcpy(p1->name,name);
 printf("请输入职业:"); gets(p1->work);
 printf("请输入手机:"); gets(p1->handset);
 printf("请输入电子邮件:"); gets(p1->email);
 printf("请输入通讯地址:"); gets(p1->address);
 head=NULL;
 while(1)
 {
  n=n+1; //记录通讯录人数个数
  if(n==1)
  head=p1;
  else
  p2->next=p1;
  p2=p1;
  printf("请输入姓名:");
  gets(name);
  if(strcmp(name,"0")==0)
  {
  break;
  }
  else
  {
  p1=(struct address_list *)malloc(LEN);
  strcpy(p1->name,name);
  printf("请输入职业:"); gets(p1->work);
  printf("请输入手机:"); gets(p1->handset);
  printf("请输入电子邮件:"); gets(p1->email);
  printf("请输入通讯地址:"); gets(p1->address);
  }
 }
 p2->next=NULL;
 return head;
 }
 else
 return 0;
}
//输出函数
void print(struct address_list *head)
{
 struct address_list *p;
 if(head!=NULL)
 {
 p=head;
 printf("本通讯录现在共有%d人:\n",n);
 printf("---姓名-------职业--------手机-------Email-------通讯地址\n");
 printf("==================================\n");
 do
 {
  printf("== %s",p->name); printf(" ");
  printf("%s",p->work); printf(" ");
  printf("%s",p->handset); printf(" ");
  printf("%s",p->email); printf(" ");
  printf("%s",p->address); printf(" \n");
  p=p->next;
 }while(p!=NULL);
 printf("==================================\n");
 }
 else
 printf("通讯录为空,无法输出!\n");
}
//增加函数
struct address_list *insert(struct address_list *head)
{
 struct address_list *p0,*p1,*p2;
 char name[20];
 p1=head;
 printf("请输入增加的内容:\n");
 printf("请输入姓名:"); gets(name);
 if(strcmp(name,"0")==0)
 {
 printf("姓名不能为0,增加失败!\n");
 return(head);
 }
 else
 {
 p0=(struct address_list *)malloc(LEN);
 strcpy(p0->name,name);
 printf("请输入职业:"); gets(p0->work);
 printf("请输入手机:"); gets(p0->handset);
 printf("请输入电子邮件:"); gets(p0->email);
 printf("请输入通讯地址:"); gets(p0->address);
 n=n+1;
 if(head==NULL)
 {
  head=p0;
  p0->next=NULL;
  return head;
 }
 else
 {
  while(strcmp(p0->name,p1->name)>0&&(p1->next!=NULL))
  {
  p2=p1;
  p1=p1->next;
  }
  if(strcmp(p0->name,p1->name)<0 || strcmp(p0->name,p1->name)==0)
  {
  if(head==p1)
  {
   head=p0;
  }
  else
  {
   p2->next=p0;
  }
  p0->next=p1;
  }
  else
  {
  p1->next=p0;
  p0->next=NULL;
  }
  return head;
 }
 }
}
struct address_list* delete_txl(struct address_list *head)
{
 struct address_list *p,*q;
 char name[30];
 if(head==NULL)
 {
 printf("通讯录为空,无法显示!\n");
 return head;
 }
 p=head;
 printf("请输入需要删除的人的姓名:");
 gets(name);
 if(strcmp(head->name,name)==0)
 {
 head=head->next;
 free(p);
 printf("删除操作成功！\n");
 return head;
 }
 else
 {
 q=head,p=head->next;
 while(p!=NULL)
 {
  if(strcmp(p->name,name)==0)
  {
  q->next=p->next;
  free(p);
  printf("删除操作成功！\n");
  return head;
  }
  p=p->next;
  q=q->next;
 }
 }
}
//显示函数
struct address_list *display(struct address_list *head)
{
 struct address_list *p1,*p2;
 char name[30];
 int m;
 if(head==NULL)
 {
 printf("通讯录为空,无法显示!\n");
 return head;
 }
 p1=head;
 m=0;
 printf("请输入需要显示人的姓名:");
 gets(name);
 while(p1!=NULL)
 {
 while((strcmp(p1->name,name))!=0 && p1->next!=NULL)
 {
  p2=p1;
  p1=p1->next;
 }
 if(strcmp(p1->name,name)==0)
 {
  m++;
  printf("%s的通讯内容如下:\n",name);
  printf("---姓名--------职业--------手机-------Email------通讯地址\n");
  printf("==================================\n");
  printf("== %s",p1->name);printf(" ");
  printf("%s",p1->work);printf(" ");
  printf("%s",p1->handset);printf(" ");
  printf("%s",p1->email);printf(" ");
  printf("%s",p1->address); printf(" \n");
  printf("==================================\n");
 }
 p1=p1->next;
 }
 if(m==0)
 {
 printf("此人未在本通讯录中!\n");
 }
 return(head);
}

//排序函数
struct address_list *paixu(struct address_list *head)
{
 struct address_list *p1,*p2;
 int i,j;
 struct address_list1
 {
 char name[30];
 char work[30];
 char handset[30];
 char email[30];
 char address[30];
 };
 struct address_list1 px[200];
 struct address_list1 temp;
 if(head==NULL)
 {
 printf("通讯录为空,无法排序!\n");
 return(head);
 }
 p1=head;
 for(i=0;i<n,p1!=NULL;i++)
 {
 strcpy(px[i].name,p1->name);
 strcpy(px[i].work,p1->work);
 strcpy(px[i].handset,p1->handset);
 strcpy(px[i].email,p1->email);
 strcpy(px[i].address,p1->address);
 p2=p1;
 p1=p1->next;
 }
 head=shifang(head);
 for(j=0;j<n-1;j++)
 {
 for(i=j+1;i<n;i++)
 {
  if(strcmp(px[i].name,px[j].name)<0)
  {
  temp=px[i];
  px[i]=px[j];
  px[j]=temp;
  }
 }
 }
 p1=(struct address_list *)malloc(LEN);
 p2=p1;
 strcpy(p1->name,px[0].name);
 strcpy(p1->work,px[0].work);
 strcpy(p1->handset,px[0].handset);
 strcpy(p1->email,px[0].email);
 strcpy(p1->address,px[0].address);

 head=p1;
 for(i=1;i<n;i++)
 {
 p1=(struct address_list *)malloc(LEN);
 strcpy(p1->name,px[i].name);
 strcpy(p1->work,px[i].work);
 strcpy(p1->handset,px[i].handset);
 strcpy(p1->email,px[i].email);
 strcpy(p1->address,px[i].address);
 p2->next=p1;
 p2=p1;
 }
 p2->next=NULL;
 printf("按姓名排序后为:\n");
 print(head);
 return(head);
}
//姓名查找函数
struct address_list *search(struct address_list *head)
{
 struct address_list *p1,*p2;
 int m;
 char name[30];
 if(head==NULL)
 {
 printf("通讯录为空,无法分类查找!\n");
 return(head);
 }
 p1=head;
 printf("********************\n");
 printf("** 请输入需要查找的姓名 **\n");
 printf("********************\n");
 m=0;
 gets(name);
 while(p1!=NULL)
 {
 while(strcmp(p1->name,name)!=0&&p1->next!=NULL)
 {
  p2=p1;
  p1=p1->next;
 }
 if(strcmp(p1->name,name)==0)
 {
  m++;
  printf("你查找的内容是:\n");
  printf("+++++++++++++++++++++++++++++++++++\n");
  printf("++ %s %s %s %s %s\n",p1->name,p1->work,p1->handset,p1->email,p1->address);
  printf("+++++++++++++++++++++++++++++++++++\n");
 }
 p1=p1->next;

 if(m==0)
 {
  printf("此人未在本通讯录中!\n");
 }
 break;
 }

 return(head);
}

//释放内存函数
struct address_list *shifang(struct address_list *head)
{
 struct address_list *p1;
 while(head!=NULL)
 {
 p1=head;
 head=head->next;
 free(p1);
 }
 return(head);
}

//文件写入函数
void save(struct address_list *head)
{
 FILE *fp;
 struct address_list *p1;
 char tong[30];
 if(head==NULL)
 {
 printf("通讯录为空,无法存储!\n");
 return;
 }
 printf("请输入保存后的文件名:");
 gets(tong);
 fp=fopen("(tong).txt","w");
 if(fp==NULL)
 {
 printf("cannot open file\n");
 return;
 }
 p1=head;
 fprintf(fp,"姓名 职业 手机 Email 通讯地址\n");
 for(;p1!=NULL;)
 {
 fprintf(fp,"%s %s %s %s %s\n",p1->name,p1->work,p1->handset,p1->email,p1->address);
 p1=p1->next;
 }
 printf("保存完毕!\n");
 fclose(fp);
}

//文件读出函数
struct address_list *load(struct address_list *head)
{
 FILE *fp;
 char tong[30];
 struct address_list *p1,*p2;
 printf("请输入要输出的文件名:");
 gets(tong);
 fp=fopen("(tong).txt","r");
 if(fp==NULL)
 {
 printf("此通讯录名不存在,无法输出!\n");
 return(head);
 }
 else
 {
 head=shifang(head);
 }
 p1=(struct address_list *)malloc(LEN);
 fscanf(fp,"%s%s%s%s%s",&p1->name,&p1->work,&p1->handset,&p1->email,&p1->address);
 if(feof(fp)!=0)
 {
 printf("文件为空,无法打开!\n");
 return(head);
 }
 else
 {
 rewind(fp);
 p2=p1;
 head=p1;
 n=0;
 while(feof(fp)==0)
 {
  fscanf(fp,"%s%s%s%s%s",&p1->name,&p1->work,&p1->handset,&p1->email,&p1->address);
  if(feof(fp)!=0)
  break;
  p2->next=p1;
  p2=p1;
  p1=(struct address_list *)malloc(LEN);
  n=n+1;
 }
 p2->next=NULL;
 p1=head;
 head=head->next;
 n=n-1;
 free(p1);
 print(head);
 printf("打开完毕!\n");
 return(head);
 }
 fclose(fp);
}

//综合操作函数
struct address_list *menu(struct address_list *head)
{
 char num[10];
 while(1)
 {
 printf("*********************\n");
 printf("*** 1 姓名查找 ****\n");
 printf("*** 2 单个显示 ****\n");
 printf("*** 3 增加  ****\n");
 printf("*** 4 退出  ****\n");
 printf("*********************\n");
 printf("请输入您选择的操作:");
 gets(num);
 switch(*num)
 {
 case '1':
  {
  head=search(head);    //姓名查找
  print(head);
  }
  break;
 case '2':
  {
  head=display(head);    //显示
  }
  break;
 case '3':
  {
  head=insert(head);    //增加
  print(head);
  }
  break;
 case '4':
  return head;
 default:
  printf("操作错误，此项不存在!\n");
  break;
 }
 if(strcmp(num,"6")==0)
  break;
 }
 return head;
}
//主函数
void main()
{
 struct address_list *head=NULL;
 char num[10];
 printf("*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*\n");
 printf("*=*  程序说明  *=*\n");
 printf("*=* 请及时保存创建完毕的通讯录内容! *=*\n");
 printf("*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*\n");
 while(1)
 {
 printf("************************\n");
 printf("*** 1 创建通讯录 ****\n");
 printf("*** 2 按名字排序 ****\n");
 printf("*** 3 综合操作 ****\n");
 printf("*** 4 保存  ****\n");
 printf("*** 5 打开  ****\n");
 printf("*** 6 删除  ****\n");
 printf("*** 7 退出  ****\n");
 printf("************************\n");
 printf("请输入您选择的操作:");
 gets(num);
 switch(*num)
 {
 case '1':
  {
  if(head==NULL)
  {
   head=creat();    //创建
   print(head);
  }
  else
  {
   head=shifang(head);
   head=creat();    //重新创建
   print(head);
  }
  }
  break;
 case '2':
  {
  head=paixu(head);    //排序
  }
  break;
 case '3':
  {
  head=menu(head);    //综合操作
  }
  break;
 case '4':
  {
  save(head);     //文件保存
  print(head);
  }
  break;
 case '5':
  {
  head=load(head);    //文件输出
  }
  break;
 case '6':
  {
  head=delete_txl(head);    //删除
  print(head);
  }
  break;
 case '7':
  head=shifang(head);
  break;
 default:
  printf("操作错误，此项不存在!\n");
  break;
 }
 if(strcmp(num,"7")==0)
  break;
 }
}

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服务器之家。

原文链接：http://blog.csdn.net/Hackbuteer1/article/details/6573488