实现一个通讯录,通讯录可以用来存储1000个人的信息,每个人的信息包括:
姓名、性别、年龄、电话、住址
提供方法:
1. 添加联系人信息
2. 删除指定联系人信息
3. 查找指定联系人信息
4. 修改指定联系人信息
5. 显示所有联系人信息
6. 清空所有联系人
7. 以名字排序所有联系人
没有开辟动态内存的方法:
头文件:test.h
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#ifndef __CONTACT
#define __CONTACT
#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<assert.h>
#define N 1000
typedef struct contact
{
char name[30];
char gender[10];
int age;
int telephone;
char address[100];
}; //结构体没有定义变量属于声明一个结构体类型
void meau();
void show( struct contact *p, int len); //struct contact *p:结构体指针指向这个结构体, int len:结构体数组的长度
void Add_linkman( struct contact *p, int len, int flag);
int Delete_linkman( struct contact *p, int d_number, int len); //int d_number选择要删除第几个结构体的内容
void Find_member( struct contact *p, int d_number, int len); //int d_number表示要查找的第几个结构体的内容(即联系人的信息)
void empty( struct contact *p);
void Modify( struct contact *p, int M_member); //int M_member:要修改的第几个联系人
int cmp( const void *a, const void *b); //qsort里面的比较函数定义任意类型
void sort( struct contact *p, int len); //根据联系人的名字进行排序
#endif//条件编译
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contact.c文件
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#include"test.h"
void meau()
{
printf ( " *******************************************\n" );
printf ( " *******************************************\n" );
printf ( " ##############My address book##############\n" );
printf ( " *1-Add 2-Delete 3-Find *\n" );
printf ( " *4-Empty 5-Modify 6-Sort *\n" );
printf ( " *0-Exit 7-Show *\n" );
printf ( " *******************************************\n" );
printf ( " *******************************************\n" );
}
void show( struct contact *p, int len)
{
assert (p);
int i = 0;
for (i = 0; i < len; i++)
{
printf ( "name:%s gender:%s age:%d telephone:%d address:%s" , \
p[i].name, p[i].gender, p[i].age, p[i].telephone, p[i].address);
printf ( "\n" );
}
}
void Add_linkman( struct contact *p, int len, int flag)
{
assert (p);
int i = 0;
for (i = flag; i < len; i++)
{
printf ( "请输入姓名:" );
scanf ( "%s" , &p[i].name);
printf ( "请输入姓别:" );
scanf ( "%s" , &p[i].gender);
printf ( "请输入年龄:" );
scanf ( "%d" , &p[i].age);
printf ( "请输入电话:" );
scanf ( "%d" , &p[i].telephone);
printf ( "请输入地址:" );
scanf ( "%s" , &p[i].address);
}
}
int Delete_linkman( struct contact *p, int d_number, int len)
{
assert (p);
int i = 0;
for (i = d_number - 1; i < len - 1; i++)
{
p[i] = p[i + 1];
}
}
void Find_member( struct contact *p, int d_number, int len)
{
assert (p);
if (d_number - 1 >= 0 || d_number - 1<len)
{
printf ( "name:%s gender:%s age:%d telephone:%d address:%s" , \
p[d_number].name, p[d_number].gender, p[d_number].age, p[d_number].telephone, p[d_number].address);
printf ( "\n" );
}
else
{
printf ( "不存在该联系人:" );
return ;
}
}
void empty( struct contact *p)
{
assert (p);
int i = 0;
for (i = 0; i <1000; i++)
{
memset (p+i, 0, sizeof ( struct contact));
}
}
void Modify( struct contact *p, int M_member)
{
assert (p);
printf ( "修改之前联系人的信息为:" );
printf ( "\n" );
printf ( "name:%s gender:%s age:%d telephone:%d address:%s" , \
p[M_member - 1].name, p[M_member - 1].gender, p[M_member - 1].age, p[M_member - 1].telephone, p[M_member - 1].address);
printf ( "\n" );
printf ( "请输入要修改的信息:" );
printf ( "请输入姓名:" );
scanf ( "%s" , &p[M_member - 1].name);
printf ( "请输入姓别:" );
scanf ( "%s" , &p[M_member - 1].gender);
printf ( "请输入年龄:" );
scanf ( "%d" , &p[M_member - 1].age);
printf ( "请输入电话:" );
scanf ( "%d" , &p[M_member - 1].telephone);
printf ( "请输入地址:" );
scanf ( "%s" , &p[M_member - 1].address);
}
int cmp( const void *a, const void *b)
{
struct contact *aa = ( struct contact *)a;
struct contact *bb = ( struct contact *)b;
if (aa->name != bb->name)
return ( strcmp ((aa->name), (bb->name)));
}
void sort( struct contact *p, int len)
{
assert (p);
qsort (p, len, sizeof ( struct contact), cmp);
}
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test.c文件:
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#include"test.h"
int main()
{
int num = 0;
struct contact student[N];
int len = 0;
int flag = 0; //定义一个标志位来结构体数组中每个结构体的位置
int total = N;
int delete_number = 0;
meau();
while (1)
{
printf ( "请输入数字进行选择:" );
scanf ( "%d" , &num);
switch (num)
{
case 1:{
printf ( "请添加len个学生的信息:" );
scanf ( "%d" , &len);
Add_linkman(student,len+flag,flag);
flag=flag+len;
} break ;
case 2:{
printf ( "请输入要删除的第i个学生的信息:" );
scanf ( "%d" , &delete_number);
Delete_linkman(student, delete_number, len+flag);
flag = flag - 1;
} break ;
case 3:{
int Find_number = 0;
printf ( "请输入要查找的第i个学生的信息:" );
scanf ( "%d" , &Find_number);
Find_member(student, delete_number, len+flag);
} break ;
case 4:{
printf ( "清空所有联系人:" );
empty(student);
} break ;
case 5:{
printf ( "请输入要修改的的第i个学生的信息:" );
int M_member = 0;
scanf ( "%d" , &M_member);
Modify(student, M_member);
} break ;
case 6:{
printf ( "根据名字排序所有联系人:\n" );
sort(student, len+flag);
} break ;
case 7:{
printf ( "打印所有联系人的信息:\n" );
show(student, flag);
} break ;
case 0:{
exit (1);
}
default : printf ( "enter error data!!!" );
}
}
system ( "pause" );
return 0;
}
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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/persistence_s/article/details/53428262