C语言之通讯录的实现

通讯录实现所需头文件和源文件

Contact.h的功能

声明函数和创建结构体变量

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#define MAX 1000
#define MAX_NAME 20
#define MAX_SEX 5
#define MAX_PHONE 12
#define MAX_ADDRESS 30
#define DEFAULT_SZ 3
#define INTC_SZ 2
typedef struct PeoInform
{char name[MAX_NAME];int age;char sex[MAX_SEX];char phone[MAX_PHONE];char address[MAX_ADDRESS];
}PeoInform;//静态
//typedef struct Contact
//{
//    PeoInform data[MAX];
//    int size;
//    
//}Contact;typedef struct Contact
{PeoInform* data;int size;int capacity;
}Contact;void InitContact(Contact* pc);
void AddContact(Contact* pc);
void ShowContact(const Contact* pc);
void DelContact(Contact* pc);
void SearchContact(const Contact* pc);
void MoidfyContact(Contact* pc);
void SortContact(Contact* pc);
void  DerstoryContact(Contact* pc);
void SaveContact(Contact* pc);
void LoadCntact(Contact* pc);

Contact.c

设定通讯录所需的功能和函数的定义

void InitContact(Contact* pc);//初始化函数
void AddContact(Contact* pc);//增加用户
void ShowContact(const Contact* pc);//显示通讯录信息·
void DelContact(Contact* pc);//删除用户信息
void SearchContact(const Contact* pc);//搜索通讯录
void MoidfyContact(Contact* pc);//修改用户信息
void SortContact(Contact* pc)；//排序通讯录
void DerstoryContact(Contact* pc);//因动态申请内存所以释放内存
void SaveContact(Contact* pc);//通讯录信息保存到文件
void LoadCntact(Contact* pc);//把文件保存到通讯录中

void InitContact(Contact* pc);

void InitContact(Contact* pc)
{//动态版memset(pc->data, 0, sizeof(pc->data));//第一个参数是起始地址pc->size = 0;pc->capacity = DEFAULT_SZ;PeoInform* ptr= (PeoInform*)calloc(DEFAULT_SZ,sizeof(PeoInform));if (ptr == NULL){perror("InitContact::calloc");return;}pc->data = ptr;//加载文件信息到通讯录//LoadContact(pc);
}

void AddContact(Contact* pc);

void AddContact(Contact* pc)
{assert(pc);check_capacity(pc);printf("请输入名字\n");scanf("%s", pc->data[pc->size].name);printf("请输入年龄\n");scanf("%d", &(pc->data[pc->size].age));printf("请输入性别\n");scanf("%s", pc->data[pc->size].sex);printf("请输入电话\n");scanf("%s", pc->data[pc->size].phone);printf("请输入地址\n");scanf("%s", pc->data[pc->size].address);pc->size++;printf("添加成功\n");
}

``

void ShowContact(const Contact* pc);

	void ShowContact(const Contact * pc){if (pc->size == 0){printf("通讯录为空\n");}else{int i = 0;printf("%-20s\t%-4s\t%-5s\t%-12s\t%-20s\n", "名字", "年龄", "性别", "电话", "地址");for (i = 0; i < pc->size; i++){printf("%-20s\t%-4d\t%-5s\t%-12s\t%-20s\n",pc->data[i].name,pc->data[i].age,pc->data[i].sex,pc->data[i].phone,pc->data[i].address);}}}

void DelContact(Contact* pc);

static int FindByName(const Contact* pc, char name[MAX_NAME])//用于函数内部所以设置为静态
{int i = 0;for (int i = 0; i < pc->size; i++){if (0 == strcmp(pc->data[i].name, name)){return i;}}return -1;
}void DelContact(Contact* pc)
{char name[MAX_NAME];printf("请输入要删除人的名字>");scanf("%s", name);int pos = FindByName(pc,name);if (pos == -1){printf("查询不到联系人\n");}else{int j = 0;for (j = pos; j < pc->size; j++);}
}

void SearchContact(const Contact* pc);

static int FindByName(const Contact* pc, char name[MAX_NAME])//用于函数内部所以设置为静态
{int i = 0;for (int i = 0; i < pc->size; i++){if (0 == strcmp(pc->data[i].name, name)){return i;}}return -1;
}
void SearchContact(const Contact* pc)
{char name[MAX_NAME];printf("请输入查找人的名字\n");scanf("%s", name);int pos = FindByName(pc, name);if (pos == -1){printf("要查找人不存在\n");}else{printf("%-20s\t%-4s\t%-5s\t%-12s\t%-20s\n", "名字", "年龄", "性别", "电话", "地址");printf("%-20s\t%-4d\t%-5s\t%-12s\t%-20s\n",pc->data[pos].name,pc->data[pos].age,pc->data[pos].sex,pc->data[pos].phone,pc->data[pos].address);}
}

void MoidfyContact(Contact* pc);

void MoidfyContact(Contact* pc)
{char name[MAX_NAME];printf("请输入修改联系人的名字>");scanf("%s", name);int pos = FindByName(pc, name);if (pos == -1){printf("要修改人的名字");}else{printf("请输入名字\n");scanf("%s", pc->data[pc->size].name);printf("请输入年龄\n");scanf("%d", &(pc->data[pc->size].age));printf("请输入性别\n");scanf("%s", pc->data[pc->size].sex);printf("请输入电话\n");scanf("%s", pc->data[pc->size].phone);printf("请输入地址\n");scanf("%s", pc->data[pc->size].address);printf("修改完成\n");}
}

void SortContact(Contact* pc)；

	void SortContact(Contact* pc){if (pc->size == 0){printf("通讯录没有联系人,请添加\n");}for (int i = 0; i < pc->size-1; i++){for (int j = 0; j < pc->size - 1 - i; j++){if (strcmp((pc->data[j].name), (pc->data[j + 1].name) )> 0){PeoInform tmp;tmp = pc->data[j];pc -> data[j] = pc->data[j+1];pc->data[j+1] = tmp;}}printf("排序成功\n");}}

void DerstoryContact(Contact* pc);

void  DerstoryContact(Contact* pc)
{free(pc->data);pc->data = NULL;pc->capacity = 0;pc->size = 0;pc = NULL;
}

void SaveContact(Contact* pc);

void SaveContact(Contact* pc)//保存文件信息{FILE * pf = fopen("contact.txt", "wb");// 为了输出数据，打开一个二进制文件if (NULL == pf){perror("SaveContact");//打开失败就不用关闭文件了}else{int i = 0;for (i = 0; i < pc->size; i++){/fwrite(pc->data + i, sizeof(PeoInform), 1, pf);//1.结构体地址，一个元素占多少字节，多少个元素，写到pf这个文件}//一次写一个到pf所指文件fclose(pf);pf = NULL;printf("保存成功\n");}}

void LoadCntact(Contact* pc);

	void LoadContact(Contact* pc){//把文件的内容放在通讯录中FILE* pf = fopen("contact.txt","rb"); //为了输入数据，打开一个二进制文件if (pf == NULL){perror("LoadContact");}else//读数据{PeoInform tmp = { 0 };int i = 0;//正常读到1返回1 没读到返0while (fread(&tmp, sizeof(PeoInform), 1, pf))//{check_capacity(pc);pc->data[i] = tmp;pc->size++;i++;}}fclose(pf);pf = NULL;}

contact.c的综合实现

#include "Contact.h"
void check_capacity(Contact* pc)
{if (pc->size = pc->capacity){PeoInform* str = (PeoInform*)realloc(pc->data, (pc->capacity + INTC_SZ) * sizeof(PeoInform));if (str == NULL){perror("check_capacity::realloc");return;}pc->data = str;pc->capacity += INTC_SZ;printf("增容成功");}
}//静态
//void InitContact(Contact* pc)
//{
//	memset(pc->data, 0, sizeof(pc->data));//第一个参数是起始地址
//	pc->size = 0;
//}//动态
void InitContact(Contact* pc)
{memset(pc->data, 0, sizeof(pc->data));//第一个参数是起始地址pc->size = 0;pc->capacity = DEFAULT_SZ;PeoInform* ptr= (PeoInform*)calloc(DEFAULT_SZ,sizeof(PeoInform));if (ptr == NULL){perror("InitContact::calloc");return;}pc->data = ptr;//加载文件信息到通讯录//LoadContact(pc);
}void AddContact(Contact* pc)
{assert(pc);check_capacity(pc);printf("请输入名字\n");scanf("%s", pc->data[pc->size].name);printf("请输入年龄\n");scanf("%d", &(pc->data[pc->size].age));printf("请输入性别\n");scanf("%s", pc->data[pc->size].sex);printf("请输入电话\n");scanf("%s", pc->data[pc->size].phone);printf("请输入地址\n");scanf("%s", pc->data[pc->size].address);pc->size++;printf("添加成功\n");
}static int FindByName(const Contact* pc, char name[MAX_NAME])
{int i = 0;for (int i = 0; i < pc->size; i++){if (0 == strcmp(pc->data[i].name, name)){return i;}}return -1;
}void DelContact(Contact* pc)
{char name[MAX_NAME];printf("请输入要删除人的名字>");scanf("%s", name);int pos = FindByName(pc,name);if (pos == -1){printf("查询不到联系人\n");}else{int j = 0;for (j = pos; j < pc->size; j++);}
}void SearchContact(const Contact* pc)
{char name[MAX_NAME];printf("请输入查找人的名字\n");scanf("%s", name);int pos = FindByName(pc, name);if (pos == -1){printf("要查找人不存在\n");}else{printf("%-20s\t%-4s\t%-5s\t%-12s\t%-20s\n", "名字", "年龄", "性别", "电话", "地址");printf("%-20s\t%-4d\t%-5s\t%-12s\t%-20s\n",pc->data[pos].name,pc->data[pos].age,pc->data[pos].sex,pc->data[pos].phone,pc->data[pos].address);}
}void MoidfyContact(Contact* pc)
{char name[MAX_NAME];printf("请输入修改联系人的名字>");scanf("%s", name);int pos = FindByName(pc, name);if (pos == -1){printf("要修改人的名字");}else{printf("请输入名字\n");scanf("%s", pc->data[pc->size].name);printf("请输入年龄\n");scanf("%d", &(pc->data[pc->size].age));printf("请输入性别\n");scanf("%s", pc->data[pc->size].sex);printf("请输入电话\n");scanf("%s", pc->data[pc->size].phone);printf("请输入地址\n");scanf("%s", pc->data[pc->size].address);printf("修改完成\n");}
}void ShowContact(const Contact * pc){if (pc->size == 0){printf("通讯录为空\n");}else{int i = 0;printf("%-20s\t%-4s\t%-5s\t%-12s\t%-20s\n", "名字", "年龄", "性别", "电话", "地址");for (i = 0; i < pc->size; i++){printf("%-20s\t%-4d\t%-5s\t%-12s\t%-20s\n",pc->data[i].name,pc->data[i].age,pc->data[i].sex,pc->data[i].phone,pc->data[i].address);}}}void SortContact(Contact* pc){if (pc->size == 0){printf("通讯录没有联系人,请添加\n");}for (int i = 0; i < pc->size-1; i++){for (int j = 0; j < pc->size - 1 - i; j++){if (strcmp((pc->data[j].name), (pc->data[j + 1].name) )> 0){PeoInform tmp;tmp = pc->data[j];pc -> data[j] = pc->data[j+1];pc->data[j+1] = tmp;}}printf("排序成功\n");}}void  DerstoryContact(Contact* pc){free(pc->data);pc->data = NULL;pc->capacity = 0;pc->size = 0;pc = NULL;}void SaveContact(Contact* pc){FILE * pf = fopen("contact.txt", "wb");if (NULL == pf){perror("SaveContact");}else{int i = 0;for (i = 0; i < pc->size; i++){fwrite(pc->data + i, sizeof(PeoInform), 1, pf);}fclose(pf);pf = NULL;printf("保存成功\n");}}void LoadContact(Contact* pc){FILE* pf = fopen("contact.txt","rb"); if (pf == NULL){perror("LoadContact");}else{PeoInform tmp = { 0 };int i = 0;while (fread(&tmp, sizeof(PeoInform), 1, pf)){check_capacity(pc);pc->data[i] = tmp;pc->size++;i++;}}fclose(pf);pf = NULL;}

test.h

#include "Contact.h"void menu()
{printf("*********************************\n");printf("**      1. 添加联系人          **\n");printf("**      2. 删除联系人          **\n");printf("**      3. 查找联系人          **\n");printf("**      4. 修改联系人          **\n");printf("**      5. 显示所有联系人      **\n");printf("**      6. 按姓名排序联系人    **\n");printf("**      0. exit                **\n");printf("*********************************\n");
}
void test()
{int input = 0;Contact con;InitContact(&con);do{menu();printf("请选择:>");scanf("%d", &input);switch (input){case 1:AddContact(&con);break;case 2: DelContact(&con);break;case 3:SearchContact(&con);break;case 4:MoidfyContact(&con);break;case 5:ShowContact(&con);break;case 6:SortContact(&con);break;case 0:DerstoryContact(&con);printf("退出通讯录\n");break;default:printf("选择错误\n");break;}} while (input);
}
int main()
{test();return 0;
}