用C语言实现一个通讯录

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

#ifndef __CONTACT#define __CONTACT#define _CRT_SECURE_NO_WARNINGS 1#include<stdio.h>#include<stdlib.h>#include<string.h>#include<assert.h>#define N 1000typedef 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

contact.c文件

#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);}

test.c文件：

#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;}