【c语言小项目】通讯录-文件版

通讯录文件版，通过动态内存分配完成，包括信息的增、删、查、改
头文件：

#ifndef __ADDRESSLIST_H__
#define __ADDRESSLIST_H__
#define _CRT_SECURE_NO_WARNINGS
#define MAX 2

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

typedef struct man
{
    char name[20];
    int age;
    char sex[5];
    char tele[20];
    char addr[50];
}Man,*pMan;

typedef struct adresslist
{
    pMan pcon;
    int sz;//当前成员数
    int capaity;//容量

}List,*pList;

void Init(pList list);//初始化通讯录
void Add(pList list);//添加信息
void Dele(pList list);//删除信息
void Serc(pList list);//查找
void Show(const pList list);//显示所有人
void Chage(pList list);//修改信息
void SaveCon(pList list);//保存信息到文件
void LodCon(pList list);//加载文件里的信息
void Destroy(pList list);//退出时销毁通讯录


#endif //__ADDRESSLIST_H__

函数文件：

#include"addresslist.h"

static void dy_add(pList list);//动态增加
static int Find(pList list,char name[]);//按姓名查找,找到返回1否则返回-1

void Init(pList list)
{
    list->sz = 0;
    list->pcon = (pMan)malloc(MAX*sizeof(Man));
    list->capaity = MAX;
}
static void dy_add(pList list)//动态增加
{
    if(list->sz == list->capaity)
    {
        pMan temp = (pMan)realloc(list->pcon,(list->capaity+2)*sizeof(Man));
        list->pcon = temp;
        list->capaity += 2;
    }   
}

void Add(pList list)
{
    dy_add(list);
    printf("输入姓名:");
    scanf("%s",list->pcon[list->sz].name);
    printf("输入年龄:");
    scanf("%d",&(list->pcon[list->sz].age));
    printf("输入性别:");
    scanf("%s",list->pcon[list->sz].sex);
    printf("输入电话:");
    scanf("%s",list->pcon[list->sz].tele);
    printf("输入地址:");
    scanf("%s",list->pcon[list->sz].addr);
    list->sz++;
    printf("添加成功\n");

}

void Destroy(pList list)
{
    free(list->pcon);
    list->capaity = 0;
    list->sz = 0;
    list->pcon = NULL;
}

static int Find(pList list,char name[])
{
    int i;
    for(i=0; i<list->sz; i++)
    {
        if(strcmp(list->pcon[i].name,name)==0)
            return i;
    }
    return -1;
}

void Serc(pList list)
{
    char name[20];
    int pos;
    int i = 0;
    printf("输入要查找的姓名:");
    scanf("%s",name);
    pos = Find(list,name);

    if(pos == -1)
        printf("没有要找的人\n");
    else
    {
        printf("姓名  年龄  性别  电话  地址\n");
        printf("%3s%5d%6s%7s%7.5s\n",list->pcon[pos].name,list->pcon[pos].age,
            list->pcon[pos].sex,list->pcon[pos].tele,list->pcon[pos].addr);
    }

}

void Dele(pList list)
{
    char name[20];
    int pos;
    int i = 0;
    printf("输入要删的姓名:");
    scanf("%s",name);
    pos = Find(list,name);
    if(pos == -1)
        printf("没有要找的人\n");
    else
    {
        for(i=pos; i<list->sz-1; i++)
        {
            list->pcon[i] = list->pcon[1+i];
        }
        list->sz--;
        printf("删除成功\n");
    }

}
void Show(const pList list)
{
    int i = 0;
    printf("姓名  年龄  性别  电话  地址\n");
    for(i=0; i<list->sz; i++)
    {
        printf("%3s%5d%6s%7s%7.5s\n",list->pcon[i].name,list->pcon[i].age,
            list->pcon[i].sex,list->pcon[i].tele,list->pcon[i].addr);
    }
}

void Chage(pList list)
{
    char name[20];
    int pos;
    int i = 0;
    printf("输入要修改的姓名:");
    scanf("%s",name);
    pos = Find(list,name);

    if(pos == -1)
        printf("没有要找的人\n");
    else
    {
            printf("输入姓名:");
            scanf("%s",list->pcon[i].name);
            printf("输入年龄:");
            scanf("%d",&(list->pcon[i].age));
            printf("输入性别:");
            scanf("%s",list->pcon[i].sex);
            printf("输入电话:");
            scanf("%s",list->pcon[i].tele);
            printf("输入地址:");
            scanf("%s",list->pcon[i].addr);
            printf("修改成功\n");
    }
}

void SaveCon(pList list)
{
    int i;
    FILE* pfWrite  = fopen("hehe.txt","w");
    if(pfWrite == NULL)
    {
        perror("open file for write");
        exit(1);
    }
    for(i=0; i<list->sz; i++)
        fwrite(list->pcon+i,sizeof(Man),1,pfWrite);
    fclose(pfWrite);
}

void LodCon(pList list)
{
    Man tmp;
    FILE* pfRead = fopen("hehe.txt","r");
    if(pfRead == NULL)
    {
        perror("open file for read");
        exit(1);
    }
    while(fread(&tmp,sizeof(Man),1,pfRead))
    {
        dy_add(list);
        list->pcon[list->sz++] = tmp;       
    }
    fclose(pfRead);
}

主体逻辑：

#include"addresslist.h"
void menu()
{
    printf("***********************\n");
    printf("****1.添加  2.删除*****\n");
    printf("****3.查找  4.修改*****\n");
    printf("****5.显示  0.退出*****\n");
    printf("***********************\n");
}

void test()
{
    int input = 0;
    List a_list;
    pList lt = &a_list;
    Init(lt);
    LodCon(lt);
    do
    {   
        menu();
        printf("请选择:");
        scanf("%d",&input);
        switch(input)
        {
        case 0:
            SaveCon(lt);
            Destroy(lt);
            exit(1);
        case 1:
            Add(lt);
            break;
        case 2:
            Dele(lt);
            break;
        case 3:
            Serc(lt);
            break;
        case 4:
            Chage(lt);
            break;
        case 5:
            Show(lt);
            break;
        default:
            printf("输入错误!\n");
            break;
        }
    }while(input);
}
int main()
{
    test();
    return 0;
}