C语言：通讯录
C语言：通讯录
题目要求：
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：
-
添加联系人信息
-
删除指定联系人信息
-
查找指定联系人信息
-
修改指定联系人信息
-
显示所有联系人信息
-
清空所有联系人
-
以名字排序所有联系人
-
保存联系人到文件
-
加载联系人
contact.h#pragma warning(disable:4996)//消除scanf的警告； #ifndef __CONTACT_H__//防止重定义； #define __CONTACT_H__ #include#include #include #define NAME_MAX 20 #define SEX_MAX 4 #define ADD_MAX 10 #define TEL_MAX 13 #define INIT 2//刚开始电话本的容量 //#define CONTACT_FILE "contant.txt" //姓名、性别、年龄、电话、住址 typedef struct person { char name[NAME_MAX ]; char sex[SEX_MAX]; int age; char tel[TEL_MAX ]; char address[ADD_MAX ]; }person; //通讯录成员结构体； typedef struct cotact { person *people; int size;//确定通讯录当前人数； int capacity ; //电话本容量； }contact_t,*contact_p;//指针用来在函数内部接受结构体指针； contact_p InitContact(const char *file); void AddPeople(contact_p Con);//新增成员； void DeletePeople(contact_p Con);//删除成员； void SearchPeople(contact_p Con);//查找成员； void UpdatePeople(contact_p Con);//修改成员； void ListPeople(contact_p Con);//显示所有成员； void EmptyContact(contact_p Con);//清空通讯录； void SortPeople(contact_p Con);//排序所有成员； void menu();//打印菜单； void save(contact_p Con,const char *file); #endif //__CONTACT_H__
contact.c
#include"contact.h"
void menu()
{
printf("*****************************\n");
printf("**1、add 2、delete**\n");
printf("**3、update 4、search**\n");
printf("**5、list 6、empty **\n");
printf("**7、sort 0、exit **\n");
printf("*****************************\n");
printf("Please Enter:");
}
static int find(contact_p Con, char* arr)//公用查找函数；
{
int i =0;
for(;isize;i++)
{
if(strcmp(Con->people [i].name,arr) == 0)
return i;
}
return -1;
}
void save(contact_p Con,const char *file)
{
FILE *fp = fopen(file,"wb");
if(!fp)
{
printf("File fopen is error!\n");
return;
}
fwrite(Con,sizeof(contact_t)+Con->size * sizeof(person),1,fp);
fclose(fp);
}
void AddPeople(contact_p Con)//增加成员；
{
if(Con->size == Con->capacity )
{
/*
当前人数已经达到最大通讯录容量，则进行扩容，用realloc函数；
*/
person *tmp = (person *)realloc (Con->people,(Con->capacity +3)*sizeof(person));
if(tmp == NULL)
{
perror("realloc");
return;
}
else
{
Con->people = tmp;
(Con->capacity) += 3;
}
}//判断通讯录是否溢出；
printf("Start adding!\n");
printf("Please enter name:");
scanf("%s",&(Con->people[Con->size].name ));
printf("Please enter sex:");
scanf("%s",&(Con->people[Con->size].sex ));
printf("Please enter age:");
scanf("%s",&(Con->people[Con->size].age));
printf("Please enter telephone:");
scanf("%s",&(Con->people[Con->size].tel));
printf("Please enter address:");
scanf(" %s",&(Con->people[Con->size].address));
printf("Add a contact success!\n");
Con->size++;//注意：每增加一个成员，通讯录总人数size都得+1；
}
void DeletePeople(contact_p Con)//删除成员；
{
int ret = 0;
char name[20] = {0};
if(Con->size == 0)
{
printf("Honey,the contacts is empty!\n");
return ;
}
printf("PLease enter the name of the contact you want to delete:\n");
scanf("%s",&name);
ret = find(Con,name);
/*
删除的方法是将最后一个成员放到删除的这个成员位置上；
注意: 不能忘记size--;
*/
if(ret>=0)
{
Con->people[ret] = Con->people[Con->size-1];
(Con->size)--;
printf("Dlete success!\n");
}
else
printf("The contact you want to delete was not found!\n");
}
void SearchPeople(contact_p Con)//查找成员；直接调用find函数；
{
int ret = 0;
char name[20] = {0};
printf("Please enter the name of the contact you want to modify:\n");
scanf("%s",&name);
ret = find(Con,name);
if(ret>=0)
{
printf("%10s\t%4s\t%3s\t%13s\t%10s\n","name","sex","age","tel","address");
printf("%10s\t%4s\t%3d\t%13s\t%10s\n",Con->people [ret].name ,
Con->people [ret].sex ,Con->people [ret].age,
Con->people [ret].tel ,Con->people [ret].address );
}
else
{
printf("The contact was not found!\n");
}
}
void UpdatePeople(contact_p Con)//改变成员；
{
int i = 0;
int ret = 0;
char name[20] = {0};
char *ptr[] = {"name","sex","age","tel","address"};
//每次改变成员的单个内容；
printf("Please enter the name of the contact you want to modify:\n");
scanf("%s",&name);
ret = find(Con,name);//调用查找函数；
if(ret>=0)
{
int ages = 0;
char mod[20] = {0};
int sel = 0;
printf("Please enter the options you want to modify:\n");
printf("1.name\n2.sex\n3.age\n4.tel\n5.adress\n");
printf("Please enter:");
scanf("%d",&sel);
printf("Please enter:");
//这块选用switch语句；比较容易看懂；其实可以进行封装；
switch(sel)
{
case 1:
scanf("%s",&mod);
strcpy(Con->people [ret].name,mod);
printf("Modify success!\n");
break;
case 2:
scanf("%s",&mod);
strcpy(Con->people [ret].sex ,mod);
printf("Modify success!\n");
break;
case 3:
scanf("%d",&ages);
Con->people [ret].age = ages;
printf("Modify success!\n");
break;
case 4:
scanf("%s",&mod);
strcpy(Con->people [ret].tel ,mod);
printf("Modify success!\n");
break;
case 5:
scanf("%s",&mod);
strcpy(Con->people [ret].address ,mod);
printf("Modify success!\n");
break;
default:
printf("Modify failed!\n");
break;
}
}
else
printf("Without this contact!\n");
}
void ListPeople(contact_p Con)//显示所有成员；
{
int i = 0;
printf("%10s\t%4s\t%3s\t%13s\t%10s\n","name","sex","age","tel","address");
//循环打印每个通讯录成员；
for(; i < Con->size ; i++)
{
printf("%10s\t%4s\t%3d\t%13s\t%10s\n",Con->people [i].name ,
Con->people [i].sex ,Con->people [i].age,
Con->people [i].tel ,Con->people [i].address );
}
}
void EmptyContact(contact_p Con)//清空联系人；
{
/*
清空通讯录只需要将通讯录总成员数size改为 0；
*/
Con->size = 0;
printf("Contact is emoty!\n");
}
void SortPeople(contact_p Con)//排序所有联系人；
{
/*
冒泡排序所有成员的名字；
*/
int flag = 0;
int i = 0;
int j = 0;
for(i = 0; i < Con->size-1 ;i++)
{
flag = 1;
for(j = 0;j <(Con->size) - i -1;j++)
{
if((strcmp(Con->people[j].name , Con->people [j+1].name))> 0)
{
person tmp = Con->people[j];
Con->people[j] = Con->people[j+1];
Con->people[j+1] = tmp;
flag = 0;
}
}
if(flag==1)
{
break;
}
}
}
main.c
#include"contact.h"
int main()
{
contact_t Con = {0};
//size一定要初始化为0;
Con.size = 0;
Con.capacity = INIT ;
Con.people = (person *)malloc(INIT *sizeof(person));
/*
注意与malloc对应的free();在退出功能进行free。
*/
if(Con.people == NULL)//是否开辟成功的判断；
{
perror("malloc");
return 0;
}
else
{
int quit = 0;
int input = -1;
while (!quit)
{
menu();
/*fread(&Con.people ,sizeof(Con.people),1,fp);*/
/*fclose(fp);*/
scanf("%d", &input);
switch (input)
{
case 0:
quit = 1;
free(Con.people);
Con.people = NULL;
break;
case 1:
AddPeople(&Con);
break;
case 2:
DeletePeople(&Con);
break;
case 3:
UpdatePeople(&Con);
break;
case 4:
SearchPeople(&Con);
break;
case 5:
ListPeople(&Con);
break;
case 6:
EmptyContact(&Con);
break;
case 7:
SortPeople(&Con);
break;
default:
printf("Input error , Try again!\n");
break;
}
}
}
printf("Bye Bye!\n");
system("pause");
return 0;
}