C语言实现通讯录

今天分享一个通讯录的代码，代码可以正常运行，但是可能有一点点缺陷，完成的是我们的通讯录功能

contact.h

#pragma once
#include<string.h>#include<stdio.h>
#include<assert.h>
#define MAX 1000
#define NAME_MAX 20
#define SEX_MAX 5
#define TEL_MAX 12
#define ADDR_MAX 30
typedef struct people
{char name[NAME_MAX];//名字char sex[SEX_MAX];//性别int age;//年龄char tel[TEL_MAX];//电话char addr[ADDR_MAX];//地址
}people;//定义这个struct people为peopletypedef struct contact
{people data[MAX];//存放一千个人信息int sz;//记录通讯录已经保存的信息个数
}contact;enum optiom 
{EXIT,ADD,DEL,SEARCH,MODIFY,SORT,PRINT
};
//初始化通讯录
void Initcontact(contact* pc);//添加用户信息
void AddContact(contact* pc);//打印信息
void PrintContact(const contact* pc);//删除信息
void DelContact(contact* pc);//查找
void SearchContact(const contact* pc);//修改功能
void ModifyContact(contact* pc);//排序功能没写

contact.c

#define _CRT_SECURE_NO_WARNINGS 1#include"contact.h"
//初始化通讯录
void Initcontact(contact* pc)
{pc->sz = 0;memset(pc->data, 0, sizeof(pc->data));
}void AddContact(contact* pc)
{if (pc->sz == MAX){printf("通讯录已满，无法添加\n");return;}//录入信息printf("请输入名字：>");scanf("%s", pc->data[pc->sz].name);printf("请输入年龄:>");scanf("%d", &(pc->data[pc->sz].age));printf("请输入性别：>");scanf("%s", pc->data[pc->sz].sex);printf("请输入电话：>");scanf("%s", pc->data[pc->sz].tel);printf("请输入地址:>");scanf("%s", pc->data[pc->sz].addr);//把数据放入下标为sz的底下pc->sz++;//不能单独 写sz++printf("添加成功\n");
}void PrintContact(const contact* pc)
{assert(pc);int i = 0;printf("%-20s  %-10d  %-5s  %-12s  %-30s\n","姓名","年龄","性别","电话","地址");for (i = 0; i < pc->sz; i++){printf("%-20s  %-10d  %-5s  %-12s  %-30s\n",pc->data[i].name, pc->data[i].age, pc->data[i].sex, pc->data[i].tel, pc->data[i].addr);}}int FindName(contact* pc, char name[])
{int i = 0;for (i = 0; i < pc->sz; i++){if (0 == strcmp(name, pc->data[i].name)){return i;}}return -1;
}
void DelContact(contact* pc)
{assert(pc);if (pc->sz == 0){printf("通讯录已空，无法删除\n");return;}char name[NAME_MAX] = { 0 };printf("要删除的人>");scanf("%s", name);int pos = FindName(pc, name);if (pos ==-1){printf("要删除的人不存在\n");}int j = 0;for (j = pos; pos < pc->sz - 1; j++){pc->data[j] = pc->data[j + 1];}pc->sz--;//最后一个元素也就访问不到，这样就不会越界printf("删除成功\n");
}void SearchContact(const contact* pc)
{char name[NAME_MAX] = { 0 };printf("要查找的人>");scanf("%s", name);int pos = FindName(pc, name);if (pos == -1){printf("要查找的人不存在\n");}printf("%-20s  %-10d  %-5s  %-12s  %-30s\n", "姓名", "年龄", "性别", "电话", "地址");printf("%-20s  %-10d  %-5s  %-12s  %-30s\n", pc->data[pos].name, pc->data[pos].age, pc->data[pos].sex, pc->data[pos].tel, pc->data[pos].addr);
}//修改联系人
void menu1()
{printf("********************************\n");printf("*******1.add     2.del *********\n");printf("*******3.search  4.modify*******\n");printf("*******5.sort    0.exit   ******\n");printf("*******6.print******************\n");printf("********************************\n");
}
void ModifyContact(contact* pc)
{int input = 0;char name[NAME_MAX] = { 0 };printf("请输入你要修改的联系人姓名:>");scanf("%s", name);//查找int pos = FindName(pc, name);int i = 0;if (pos == -1){printf("找不到所要查找的联系人\n");return;}//修改printf("请输入要修改的具体信息:>\n");menu1();scanf("%d", &input);switch (input){case 1:printf("请输入新的姓名:>");scanf("%s", pc->data[pos].name);break;case 2:printf("请输入新的年龄:>");scanf("%d", &pc->data[pos].age);break;case 3:printf("请输入新的性别:>");scanf("%s", pc->data[pos].sex);break;case 4:printf("请输入新的电话:>");scanf("%s", pc->data[pos].tel);break;case 5:printf("请输入新的地址:>");scanf("%s", pc->data[pos].addr);break;default:printf("输入有误，修改失败\n");return;}printf("修改成功\n");
}

test.c

#define _CRT_SECURE_NO_WARNINGS 1
#include"contact.h"
void menu()
{printf("********************************\n");printf("*******1.add     2.del *********\n");printf("*******3.search  4.modify*******\n");printf("*******6.print    0.exit   *****\n");printf("********************************\n");printf("********************************\n");
}
void test()
{int input = 0;contact con;//初始化通讯录Initcontact(&con);do{menu();printf("请选择：>");scanf("%d", &input);switch (input){case ADD:AddContact(&con);break;case DEL:DelContact(&con);break;case SEARCH:SearchContact(&con);break;case MODIFY:ModifyContact(&con);break;case PRINT:PrintContact(&con);break;case EXIT:printf("退出通讯录\n");break;default:printf("选择错误，请重新选择\n");break;}} while (input);}
int main()
{test();return 0;
}