/编程建立一通讯簿,存放有姓名、电话号码、住址,然后对通信簿进行查找、添加、修改及删除。/
#include<stdioh>
struct person
{
char name[8];
char tel[15];
char addr[50];
};
char filename[20];
FILE fp;
void creat();
void output();
void search();
void append();
void modify();
void delete();
main()
{
int m;
creat();
while(1)
{
printf("\n\n添加,请按1");
printf("\n查找,请按2");
printf("\n修改,请按3");
printf("\n删除,请按4");
printf("\n输出,请按5");
printf("\n退出,请按0\n");
scanf("%d",&m);
if(m>=0&&m<=5)
{
switch(m)
{
case 1: append();
break;
case 2: search();
break;
case 3: modify();
break;
case 4: delete();
break;
case 5: output();
break;
case 0: exit();
}
printf("\n\n *** 作完毕,请再次选择!");
}
else
printf("\n\n选择错误,请再次选择!");
}
}
void creat()
{
struct person one;
long s1;
printf("\n请输入通讯簿名:");
scanf("%s",filename);
if((fp=fopen(filename,"w"))==NULL)
{
printf("\n不能建立通讯簿!");
exit();
}
fprintf(fp,"%-10s%-20s%-50s\n","姓名","电话号码","住址");
printf("\n请输入姓名、电话号码及住址(以0结束)\n");
scanf("%s",onename);
while(strcmp(onename,"0"))
{
scanf("%s%s",onetel,oneaddr);
fprintf(fp,"%-10s%-20s%-50s\n",onename,onetel,oneaddr);
scanf("%s",onename);
}
fclose(fp);
}
void output()
{
struct person one;
if((fp=fopen(filename,"r"))==NULL)
{
printf("\n不能打开通讯簿!");
exit();
}
printf("\n\n%20s\n","通 讯 簿");
while(!feof(fp))
{
fscanf(fp,"%s%s%s\n",onename,onetel,oneaddr);
printf("%-10s%-20s%-50s",onename,onetel,oneaddr);
}
fclose(fp);
}
void append()
{
struct person one;
if((fp=fopen(filename,"a"))==NULL)
{
printf("\n不能打开通讯簿!");
exit();
}
printf("\n请输入添加的姓名、电话号码及住址\n");
scanf("%s%s%s",onename,onetel,oneaddr);
fprintf(fp,"%-10s%-20s%-50s\n",onename,onetel,oneaddr);
fclose(fp);
}
void search()
{
int k=0;
char namekey[8];
struct person one;
printf("\n请输入姓名:");
scanf("%s",namekey);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("\n不能打开通讯簿!");
exit();
}
while(!feof(fp))
{
fscanf(fp,"%s%s%s\n",onename,onetel,oneaddr);
if(!strcmp(namekey,onename))
{
printf("\n\n已查到,记录为:");
printf("\n%-10s%-18s%-50s",onename,onetel,oneaddr);
k=1;
}
}
if(!k)
printf("\n\n对不起,通讯簿中没有此人的记录。");
fclose(fp);
}
void modify()
{
int m,k=0;
long offset;
char namekey[8];
struct person one;
printf("\n请输入姓名:");
scanf("%s",namekey);
if((fp=fopen(filename,"r+"))==NULL)
{
printf("\n不能打开通讯簿!");
exit();
}
while(!feof(fp))
{
offset=ftell(fp);
fscanf(fp,"%s%s%s\n",onename,onetel,oneaddr);
if(!strcmp(namekey,onename))
{
k=1;
break;
}
}
if(k)
{
printf("\n已查到,记录为:");
printf("\n%-10s%-18s%-50s",onename,onetel,oneaddr);
printf("\n请输入新姓名、电话号码及住址:");
scanf("%s%s%s",onename,onetel,oneaddr);
fseek(fp,offset,SEEK_SET);
printf("%ld",ftell(fp));
fprintf(fp,"%-10s%-20s%-50s\n",onename,onetel,oneaddr);
}
else
printf("\n对不起,通讯簿中没有此人的记录。");
fclose(fp);
}
void delete()
{
int m,k=0,flag;
long offset1,offset2;
char namekey[8], valid[4];
struct person one;
printf("\n请输入姓名:");
scanf("%s",namekey);
if((fp=fopen(filename,"r+"))==NULL)
{
printf("\n不能打开通讯簿!");
exit();
}
while(!feof(fp))
{
offset1=ftell(fp);
fscanf(fp,"%s%s%s\n",onename,onetel,oneaddr);
if(!strcmp(namekey,onename))
{
k=1;
break;
}
}
if(k)
{
printf("\n已查到,记录为");
printf("\n%-10s%-18s%-50s",onename,onetel,oneaddr);
printf("\n确实要删除,按1;不删除,按0:");
scanf("%d",&m);
if(m)
{
fseek(fp,offset1,SEEK_SET);
fprintf(fp,"%-10s%-20s%-50s\n","","","");
}
}
else
printf("\n对不起,通讯簿中没有此人的记录。");
fclose(fp);
}
分析:
跟据楼主的意思!我们可以得出,这个程序只要求我们写查询通迅录的内容
而通迅录的内容,可以通过初始化得出!
简而言之:写一个查询函数
呵呵···把问题相通了,我们就开始写算法吧let's go!!!
----------------------------------------------------------------
算法:
1获得用户的输入 (就是要查询的对象的名字)
2查询 (在这我用穷举通迅录的方式查询了,^_^&&^_^)
3输出查询结果
算法就这样被我们征服了!!!呵呵~~好有成就感哇!!
但我们现在还不能开始编码,我得们先想好怎么编,要做到胸有成竹!!!
那我现在来想一下该怎么编码吧!let's go!!!
----------------------------------------------------------------
要保存通迅的信息,那么我们得用一个结构体吧:
struct friends
{
char name[20]; / 名字不能写得太长哦 /
char province[20]; / 省份 /
char city[20]; / 所在城市 /
char nation[20]; / 民族 /
char sex[2]; / 性别 M/F /
int age; / 年龄 /
};
要获得用户输入,要用个 char search_name[20];
查询结果反回一个数,记录对象在通迅录中的位置:int index;
查询中有用要循环,用一个记数器: int i;
----------------------------------------------------------------
OK,该用的变量我们都想好了!算法我们也想好了。还等什么呢,开始编码吧
呵呵~~是不是等这个时候都等得急了~~~~~
-------------------------------------------------------------------
程序实现:
#include <stdioh>
#include <stringh>
#include <stdlibh>
/ 定义保存通迅录的信息 /
struct friends
{
char name[20]; / 名字 /
char province[20]; / 省份 /
char city[20]; / 所在城市 /
char nation[20]; / 民族 /
char sex[2]; / 性别 M/F /
int age; / 年龄 /
};
void getname (char search_name[]);
int search (struct friends friend_list[], char search_name[]);
void print_result(struct friends friend_list[], int index);
int main (void)
{
int index;
char search_name[20];
struct friends friend_list[4] = {
{"lihan", "liaoning", "huluodao","han","M",19},
{"zhuqiang", "jiangsu", "changzhu", "han","M",19},
{"wangjiangang", "liaoning", "anshan","han","M",20},
{"zhanghongwei", "shandong", "zhucheng", "han","M",21},
};
(void) getname (search_name); / 获得用户输入 /
index = search (friend_list, search_name); / 查询 /
(void) print_result (friend_list,index); / 打印结果 /
return 0;
}
/
函数名:getname
功能:获得用户要查询的对象的名字
/
void getname (char search_name[])
{
printf ("Pleace enter the name of your friends you want to search>>");
scanf ("%s", search_name);
}
/
函数名:search
功能:查询对象
/
int search (struct friends friend_list[], char search_name[])
{
int i;
/ 穷举通迅录 /
for (i = 0; i < 4; ++i)
{
if (strcmp(friend_list[i]name, search_name) == 0)
{
return (i);
}
}
if (i == 4)
{
printf ("I am sorry! there is nobody by the name you enter!\n");
fflush(stdin);
getchar();
exit (0);
}
}
/
函数名:print_result
功能:打印结果
/
void print_result(struct friends friend_list[], int index)
{
printf ("the imformation of %s:\n", friend_list[index]name);
printf ("------------------------------------------------\n");
printf (" NAME: %-s\n", friend_list[index]name);
printf ("PROVINCE: %-s\n", friend_list[index]province);
printf (" CITY: %-s\n", friend_list[index]city);
printf (" NATION: %-s\n", friend_list[index]nation);
printf (" SEX: %-s\n", friend_list[index]sex);
printf (" AGE: %-d\n", friend_list[index]age);
printf ("-------------------------------------------------\n");
fflush(stdin);
getchar();
}
呵呵~~一口气把它写出来了!!!前期写算法是很重要的!!
现在还没结束!!我们要先来测试一下!!
--------------------------------------
Pleace enter the name of your friends you want to search>>lihan
the imformation of lihan:
------------------------------------------------
NAME: lihan
PROVINCE: liaoning
CITY: huluodao
NATION: han
SEX: M
AGE: 19
-------------------------------------------------
--------------------------------------
Pleace enter the name of your friends you want to search>>lbmzwyy
I am sorry! there is nobody by the name you enter!
说明成功了~~~呵呵~~太高兴了~~
--------------------------------------
请记注一点:克制编码的诱惑
无论多么小的问题都要先分析好问题,想好算法,才能开始编码!!!我相信这样做一定对你有好处的!
#include<stdioh>
#define LL sizeof(struct Information)
#include<stdlibh>
struct Information
{
char name[25];
int number;
double Tel_number;
struct Information next;
};
int n,t;
struct Information creat()
{
struct Information head,p1,p2;
n=0;
p1=p2=(struct Information )malloc(LL);
printf("请输入第 %d 个学生通讯信息:\n",n+1);
printf("姓名\t学号\t电话号码\n");
scanf("%s%d%lf",p1->name,&p1->number,&p1->Tel_number);
getchar();
head=NULL;
while(p1->number!=0)
{
n++;
if(n==1)head=p1;
else
p2->next=p1;
p2=p1;
p1=(struct Information )malloc(LL);
scanf("%s%d%lf",p1->name,&p1->number,&p1->Tel_number);
getchar();
}
p2->next=NULL;
free(p1);
p1=NULL;
return head;
}
void output(struct Information p3)
{
printf("\n你建立的是多少人的通讯录: n=%d\n ",n);
printf("\n输出存入的通信信息:\n");
printf("\n姓名\t学号\t电话号码\n");
while(p3!=NULL)
{
printf("%s\t%d\t%0lf\n",p3->name,p3->number,p3->Tel_number);
p3=p3->next;
}
}
void file(struct Information p8)
{
FILE fp;
int i;
t=n;
if((fp=fopen("Infordat","wb"))==NULL)
{
printf("此文件无法打开!\n");
exit(0);
}
for(i=0;i<t;i++)
{
if(fwrite(&p8->name,LL,1,fp)!=1)
if(fwrite(&p8->number,LL,1,fp)!=1)
if(fwrite(&p8->Tel_number,LL,1,fp)!=1)
p8=p8->next;
else
printf("此文件写入错误\n");
}
fclose(fp);
}
void Insert(struct Information head,struct Information node,int num1)
{
struct Information p;
if(head==NULL)
{
head=node;
node->next=NULL;
n++;
printf("你插入后总共有结点:n=%d\n",n);
}
p=head;
while(p->number!=num1 && p->next!=NULL)
{
p=p->next;
}
if(p->number==num1)
{
node->next=p->next;
p->next=node;
n++;
printf("你插入后总共有结点:n=%d\n",n);
}
else
printf("\nthe num1 is't found!\n");
printf("\n输出插入一个学生的通讯信息后的通讯录:\n");
printf("\n姓名\t学号\t电话号码\n");
p=head;
while(p!=NULL)
{
printf("%s\t%d\t%0lf\n",p->name,p->number,p->Tel_number);
p=p->next;
}
}
void Delete(struct Information head,int num2)
{
struct Information p5,p6,p7;
if(head==NULL)
{
printf("\nthis is a null list!\n");
}
p6=head;
while(p6->number!=num2 && p6->next!=NULL)
{
p5=p6;
p6=p6->next;
}
if(p6->number==num2)
{
if(head==p6)
{
head=head->next;
}
else
p5->next=p6->next;
n--;
printf("你 删除 后总共有结点:n=%d\n",n);
}
else
printf("\nthe %d didn't been found!\n");
printf("\n输出 删除 一个学生的通讯信息后的通讯录:\n");
printf("\n姓名\t学号\t电话号码\n");
free(p6);
p6=NULL;
p7=head;
while(p7!=NULL)
{
printf("%s\t%d\t%0lf\n",p7->name,p7->number,p7->Tel_number);
p7=p7->next;
}
}
int main()
{
struct Information p0,p4;
int r,m;
p0=creat();
output(p0);
file(p0);
printf("请输入要 插入 信息:\n");
p4=(struct Information )malloc(LL);
scanf("%s%d%lf",p4->name,&p4->number,&p4->Tel_number);
getchar();
printf("请输入 插在 那个学号:\n");
scanf("%d",&r);
Insert(p0,p4,r);
printf("请输入 删除 那个学号:\n");
scanf("%d",&m);
Delete(p0,m);
return 0;
}
这也要求貌似太多了
我这刚做了个简单的一点的通讯录
希望对LZ又点帮助
#include<stdioh>
#include<stringh>
#include<stdlibh>
#include<conioh>
typedef struct//表示数据类型,可类比int
{
char name[15];
char city[15];
char telenub[15];//固定电话号码
char email[20];
char qq[13];
char youbian[10];//表示邮编
}DataType;
FILE fp;
typedef struct node{//结类型定义
DataType data;//节点数据域
struct node next;//节点指针域
}ListNode;
typedef ListNode LinkList;
LinkList head;
ListNode p;
//函数说明
void myprint();
LinkList CreateList();
void InsertNode(LinkList head,ListNode p);
ListNode ListFind(LinkList head);
void DelNode(LinkList head);
void PrintList(LinkList head);
//用尾插法建立通讯录链表函数
LinkList CreateList()
{
LinkList head=(ListNode )malloc(sizeof(ListNode));//申请头结点 分配存储空间
ListNode p,rear;
int flag=0;//结束标志置0
rear=head;//尾指针初始指向头结点
if((fp=fopen("recordtxt","w+"))==NULL) //打开文件,并判断打开是否正常
{
printf("打开文件失败!!\n");//没打开
exit(0); //退出
}
fprintf(fp,"%-15s%-20s%-15s%-20s%-10s%-12s\n","姓名","城市","电话","邮箱","QQ","邮编" );
while(flag==0)
{
p=(ListNode )malloc(sizeof(ListNode));//申请新结点
printf(" 姓名 地址(城市) 电话 邮箱 QQ 邮编 \n");
scanf("%s%s%s%s%s%s",p->dataname ,p->datacity ,p->datatelenub ,p->dataemail,p->dataqq,p->datayoubian );
fprintf(fp,"%-15s%-20s%-15s%-20s%-10s%-12s\n",p->dataname ,p->datacity ,p->datatelenub ,p->dataemail,p->dataqq,p->datayoubian );
// fclose(fp);
rear->next=p;//新结点连接到尾结点之后
rear=p;//尾指针指向新结点
printf("是否结束建表?(1/0):");
scanf("%d",&flag);//读入一个标志数据
}
rear->next=NULL;//终端结点指针域置空
return head;//返回链表头指针
}
//在通讯录链表head中插入节点
void InsertNode(LinkList head,ListNode p)
{
ListNode p1,p2;
p1=head;
p2=p1->next;
while(p2!=NULL&&strcmp(p2->dataname,p->dataname)<0)
{
p1=p2;//p1指向刚访问过的结点
p2=p2->next;//p2指向表的下一个结点
}
p1->next=p;//插入p所指向的的结点
p->next=p2;//连接表中剩余部分
}
//有序通讯录链上的查找
ListNode ListFind(LinkList head)
{
ListNode p;
char telenub[13];
char name[15];
int temp;
printf("请选择按姓名或电话查询(1/2):\n");
p=head->next;//假定通讯录表带头结点
scanf("%d",&temp);
if(temp==1)
{
printf("请输入要查找者的姓名");
scanf("%s",name);
while(p&&strcmp(p->dataname,name)!=0)
p=p->next;
if(p==NULL||strcmp(p->dataname,name)>0)
p=NULL;//没有查到要查找的姓名
}
else
if(temp==2){
printf("请输入要查找的电话号码:\n");
scanf("%s",telenub);
while(p&&strcmp(p->datatelenub,telenub)<0)
p=p->next;
if(p==NULL||strcmp(p->datatelenub,telenub)>0)
p=NULL;
}
return p;
}
//通讯录链表上结点的删除
//先调用查询函数,查询到要删除的结点,删除结点即可。
void DelNode(LinkList head)
{
char temp;
ListNode p,q;
p=ListFind(head);//调用查找函数
if(p==NULL)
{
printf("没有查到要删除的通讯者!\n");
return;
}
printf("真的要删除改结点吗(y/n):\n");
scanf("%s",&temp);
if(temp=='y'||temp=='Y')
{
q=head;
while(q!=NULL && q->next!=p)//此循环的含义是将q的指针域赋给p
q=q->next;
q->next=p->next;//删除结点 这里为什么不能用p=p->next
free(p);//释放被删除的节点空间
printf("通讯者已被删除!\n");
}
}
//通讯录链表的输出函数
void PrintList(LinkList head)
{
ListNode p;
p=head->next;//因为链表带头结点,使p指向链表开始结点
printf(" 姓名 地址 电话 邮 箱 QQ 邮编 \n");
printf("-------------------------------------------------------------------------\n");
/if((fp=fopen("d://recordtxt","r+"))==NULL) //打开文件,并判断打开是否正常
{
printf("打开文件失败!!\n");//没打开
exit(0); //退出
}
while(feof(fp)==0)
{
fscanf(fp,"%15s%20s%15s%30s%10s%10s",p->datatelenub, p->dataname ,p->datacity ,p->dataemail,p->dataqq,p->datayoubian);
printf("%15s,%20s,%15s,%30s,%10s,%10s",p->datatelenub, p->dataname ,p->datacity ,p->dataemail,p->dataqq,p->datayoubian);
}
fclose(fp);/
while(p!=NULL)
{
printf("%10s%10s%13s%15s%13s%12s\n",p->dataname,p->datacity,p->datatelenub,p->dataemail,p->dataqq,p->datayoubian);
printf("-------------------------------------------------------------------------\n");
p=p->next;//后移一个结点
}
}
void myprint() / 显示菜单界面 /
{
printf("\n\n");
printf(" |--------------------------------|\n");
printf(" |★☆欢迎进入通讯录管路系统☆★ |\n");
printf(" |--------------------------------|\n");
printf(" | 请输入选项编号(0-5): |\n");
printf(" |--------------------------------|\n");
printf(" | 1--创建通讯录链表 |\n");
printf(" | 2--好友结点的添加 |\n");
printf(" | 3--好友结点的查询 |\n");
printf(" | 4--好友结点的删除 |——————\n");
printf(" | 5--输出通讯录链表 |08信工一班 |\n");
printf(" | 0--退出 | 谭鹏 |\n");
printf(" |--------------------------------|——————\n");
printf("\n\n\n");
}
void main()
{
char choose,yes_no;
do
{
myprint(); / 显示主菜单 /
printf("\t");
choose=getch();
switch(choose)
{
case '1':printf("\n");
printf("\t\t 通 讯 录 链 表 的 建 立 \n ");
printf("\t\n");
head=CreateList(); break; / 创建 /
case '2':
printf("\n");
printf("\t\t 通 讯 录 链 表 的 添 加 \n ");
printf("\t \n");
printf("\t姓名 地址 电话 邮 箱 QQ 邮编 \n");
printf("\t\n");
p=(ListNode )malloc(sizeof(ListNode));//申请新结点
scanf("%s%s%s%s%s%s",p->dataname ,p->datacity ,p->datatelenub ,p->dataemail,p->dataqq,p->datayoubian );
if((fp=fopen("tianjiatxt","w+"))==NULL) //打开文件,并判断打开是否正常
{
printf("打开文件失败!!\n");//没打开
exit(0); //退出
}
fprintf(fp,"%-15s%-20s%-15s%-20s%-10s%-12s\n","姓名","城市","电话","邮箱","QQ","邮编" );
InsertNode(head,p);
fprintf(fp,"%-15s%-20s%-15s%-20s%-10s%-12s\n",p->dataname ,p->datacity ,p->datatelenub ,p->dataemail,p->dataqq,p->datayoubian );
fclose(fp);
printf("\t\t\t结点添加完毕!");
break; / 添加 /
case '3':
printf("\n");
printf("\t 好 友 信 息 的 查 询 \n ");
p=ListFind(head);
if(p!=NULL){
printf(" 姓名 地址 电话 邮 箱 QQ 邮编 \n");
printf("\n");
printf("%10s%10s%13s%15s%13s%10s\n",p->dataname,p->datacity,p->datatelenub,p->dataemail,p->dataqq,p->datayoubian);
printf("\n");
}
else
printf("没有查到要查询的好友!");
break; / 查询 /
case '4':
printf("\n");
printf(" 好 友 信 息 的 删 除 \n ");
printf("\n");
DelNode(head);//删除结点
break; / 删除 /
case '5':
printf("\n");
printf("\t\t 显 示 所 有 好 友 信 息 \n ");
printf("\t \n");
PrintList(head); break; / 显示 /
case '0': break;
default:printf("\n %c为非法选项!\n",choose);
}
if(choose=='0')
break;
printf("\n 按Y键回主目录:\n\n\n");
do
{
yes_no=getch();
}while(yes_no!='Y'&&yes_no!='y');
}while(yes_no!='Y'||yes_no!='y');
}
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