我们使用多文件进行编写实现
"contact.h"
#ifndef __CONTACT_H__
#define __CONTACT_H__
#define MAX_NAME 20
#define MAX_SEX 3
#define MAX_TELE 12
#define MAX_ADDR 20
#define MAX 1000
#define INIT_SIZE 100
#define INC 100
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
enum OP
{
EXIT,
ADD,
DEL,
SEARCH,
MODIFY,
SHOW,
CLR,
SORT
};
typedef struct Peo_Info
{
char name[MAX_NAME];
char sex[MAX_SEX];
int age;
char tele[MAX_TELE];
char addr[MAX_ADDR];
}Peo_Info;
typedef struct Dhb
{
Peo_Info *pinfo;
int count;
int size;
}Dhb,*pDhb;
void menu();
void init_dhb(pDhb pdhb);
void add_dhb(pDhb pdhb);
void del_dhb(pDhb pdhb);
void search_dhb(pDhb pdhb);
void modify_dhb(pDhb pdhb);
void show_dhb(pDhb pdhb);
void clear_dhb(pDhb pdhb);
void sort_dhb(pDhb pdhb);
void save(pDhb pdhb);
#endif //__CONTACT_H__
"contact.c"
#include "contact.h"
void menu()
{
printf("*************************\n");
printf("**** 1.add 2.del ****\n");
printf("**** 3.search 4.modify***\n");
printf("**** 5.show 6.clear ***\n");
printf("*****7.sort 0.exit ***\n");
printf("*************************\n");
}
static int find_entry(pDhb pdhb,const char* name)
{
int i = 0;
for (i = 0; i < pdhb->count; i++)
{
if (0 == strcmp(name, pdhb->pinfo[i].name))
{
return i;
}
}
return -1;
}
static void init_add(pDhb pdhb, Peo_Info *peo)
{
if ((pdhb->count >= pdhb->size) && ((pdhb->size < MAX)))
{
if (pdhb->size + INC > MAX)
{
pdhb->size = MAX - pdhb->size;
}
else if (pdhb->size + INC <= MAX)
{
pdhb->size = pdhb->size + INC;
}
pdhb->pinfo = realloc(pdhb->pinfo, pdhb->size*sizeof(Peo_Info));
if (pdhb->pinfo == NULL)
{
printf("out of memory\n");
exit(1);
}
}
else if ((pdhb->size >= MAX))
{
printf("电话本已满\n");
return;
}
pdhb->pinfo[pdhb->count] = *peo;
pdhb->count++;
}
void init_dhb(pDhb pdhb)
{
Peo_Info buf;
FILE *pfread = fopen("contact.dat","r");
if (pfread == NULL)
{
perror("open file for read");
exit(EXIT_FAILURE);
}
pdhb->count = 0;
pdhb->size = INIT_SIZE;
pdhb->pinfo = (Peo_Info *)malloc((pdhb->size) *sizeof(Peo_Info));
if (pdhb->pinfo == NULL)
{
printf("out of memory\n");
exit(1);
}
while (fread(&buf, sizeof(Peo_Info), 1, pfread))
{
init_add(pdhb, &buf);
}
fclose(pfread);
}
void add_dhb(pDhb pdhb)
{
if ((pdhb->count >= pdhb->size) && ((pdhb->size < MAX)))
{
if (pdhb->size + INC > MAX)
{
pdhb->size = MAX - pdhb->size;
}
else if (pdhb->size + INC <= MAX)
{
pdhb->size = pdhb->size + INC;
}
pdhb->pinfo = realloc(pdhb->pinfo, pdhb->size*sizeof(Peo_Info));
if (pdhb->pinfo == NULL)
{
printf("out of memory\n");
exit(1);
}
}
else if ((pdhb->size >= MAX))
{
printf("电话本已满\n");
return;
}
printf("名字:>");
scanf("%s", pdhb->pinfo[pdhb->count].name);
printf("性别:>");
scanf("%s", pdhb->pinfo[pdhb->count].sex);
printf("年龄:>");
scanf("%d", &pdhb->pinfo[pdhb->count].age);
printf("电话:>");
scanf("%s", pdhb->pinfo[pdhb->count].tele);
printf("住址:>");
scanf("%s", pdhb->pinfo[pdhb->count].addr);
pdhb->count++;
printf("添加成功\n");
}
void del_dhb(pDhb pdhb)
{
char name[MAX_NAME];
int ret = 0;
printf("请输入要删除的人的名字:>");
scanf("%s", name);
ret = find_entry(pdhb, name);
if (ret == -1)
{
printf("要删除的人不存在\n");
return;
}
else
{
int j = 0;
for (j = ret; j < pdhb->count-1; j++)
{
pdhb->pinfo[j] = pdhb->pinfo[j+1];
}
pdhb->count--;
printf("删除成功\n");
}
}
void search_dhb(pDhb pdhb)
{
char name[MAX_NAME];
int ret = 0;
printf("请输入要查找的人的名字:>");
scanf("%s", name);
ret = find_entry(pdhb, name);
if (ret == -1)
{
printf("要查找的人不存在\n");
return;
}
else
{
printf("%10s\t%5s\t%4s\t%10s\t%10s\n", "name", "sex", "age", "tele", "addr");
printf("%10s\t%5s\t%3d\t%10s\t%10s\n",
pdhb->pinfo[ret].name,
pdhb->pinfo[ret].sex,
pdhb->pinfo[ret].age,
pdhb->pinfo[ret].tele,
pdhb->pinfo[ret].addr);
}
}
void modify_dhb(pDhb pdhb)
{
char name[MAX_NAME];
int ret = 0;
printf("请输入要修改的人的名字:>");
scanf("%s", name);
ret = find_entry(pdhb, name);
if (ret == -1)
{
printf("要修改的人不存在\n");
return;
}
else
{
printf("名字:>");
scanf("%s", pdhb->pinfo[ret].name);
printf("性别:>");
scanf("%s", pdhb->pinfo[ret].sex);
printf("年龄:>");
scanf("%d", &pdhb->pinfo[ret].age);
printf("电话:>");
scanf("%s", pdhb->pinfo[ret].tele);
printf("住址:>");
scanf("%s", pdhb->pinfo[ret].addr);
}
}
void show_dhb(pDhb pdhb)
{
int i = 0;
printf("%10s\t%5s\t%4s\t%10s\t%10s\n", "name", "sex", "age", "tele", "addr");
for (i = 0; i < pdhb->count; i++)
{
printf("%10s\t%5s\t%3d\t%10s\t%10s\n",
pdhb->pinfo[i].name,
pdhb->pinfo[i].sex,
pdhb->pinfo[i].age,
pdhb->pinfo[i].tele,
pdhb->pinfo[i].addr);
}
printf("sz = %d\n", pdhb->size);
}
void clear_dhb(pDhb pdhb)
{
pdhb->count = 0;
}
void sort_dhb(pDhb pdhb)
{
int i = 0;
int j = 0;
for (i = 0; i < pdhb->count - 1; i++)
{
for (j = 0; j < pdhb->count - 1 - i; j++)
{
if (strcmp(pdhb->pinfo[j].name, pdhb->pinfo[j + 1].name)>0)
{
Peo_Info tmp = pdhb->pinfo[j];
pdhb->pinfo[j] = pdhb->pinfo[j + 1];
pdhb->pinfo[j + 1] = tmp;
}
}
}
}
void save(pDhb pdhb)
{
FILE* pfwrite = fopen("contact.dat", "w");
if (pfwrite == NULL)
{
perror("open file for write");
exit(EXIT_FAILURE);
}
int i = 0;
for (i = 0; i < pdhb->count; i++)
{
fwrite(&pdhb->pinfo[i],sizeof(Peo_Info), 1, pfwrite);
}
fclose(pfwrite);
}
"test.c"
#include <stdlib.h>
#include "contact.h"
int main()
{
Dhb dhb;
int input = 1;
init_dhb(&dhb);
while (input)
{
menu();
printf("请选择>:");
scanf("%d", &input);
switch (input)
{
case ADD:
add_dhb(&dhb);
break;
case DEL:
del_dhb(&dhb);
break;
case SEARCH:
search_dhb(&dhb);
break;
case MODIFY:
modify_dhb(&dhb);
break;
case SHOW:
show_dhb(&dhb);
break;
case CLR:
clear_dhb(&dhb);
break;
case SORT:
sort_dhb(&dhb);
break;
case EXIT:
{
save(&dhb);
free(dhb.pinfo);
exit(EXIT_SUCCESS);
break;
}
}
}
return 0;
}本文出自 “Vs吕小布” 博客，谢绝转载！
原文地址：http://survive.blog.51cto.com/10728490/1725971
