简易通讯录程序

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

struct Info
{
	char name[32];   // char *name;
	char tel[32];
	int age;
};
typedef struct Info info;

#define SIZE    100

int person = 0;   //表示已经添加的人数

void welcome()
{
	system("clear");
	printf("\n\n\n");
	printf("\t\t******************************************\n");
	printf("\t\t******************************************\n");
	printf("\t\t            欢迎                          \n");
	printf("\t\t******************************************\n");
	printf("\t\t******************************************\n");
	sleep(1);
}

void menu()
{
	system("clear");
	printf("\n\n\n");
	printf("\t\t******************************************\n");
	printf("\t\t******************************************\n");
	printf("\t\t 1、增加信息               2、修改信息\n");
	printf("\t\t 3、查找信息               4、删除信息\n");
	printf("\t\t 5、显示信息               6、退出\n");
	printf("\t\t******************************************\n");
	printf("\t\t******************************************\n");
}

void addinfo(info *i)
{
	char name[32] = {0};
	char tel[32] = {0};
	int age = 0;

	printf("请输入姓名、电话、年龄:\n");
	scanf("%s%s%d", name, tel, &age);

	strcpy(i[person].name, name);
	strcpy(i[person].tel, tel);
	i[person].age = age;

	person++;
}

void modifyinfo(info *i)
{
	char name[32] = {0};
	char tel[32] = {0};
	int age = 0;
	int num;
	printf("请输入序号:    \n");
	scanf("%d",&num);
	printf("请输入新的姓名、电话、年龄:   \n");
	scanf("%s%s%d", name, tel, &age);
	strcpy(i[num].name, name);
	strcpy(i[num].tel, tel);
	i[num].age = age;
	printf("修改成功!\n");
	sleep(2);
}

void searchinfo(info *i)
{
	char name[32] = {0};
	int j;	
	printf("请输入需要查找人的姓名：  \n");
	scanf("%s",name);
	for(j = 0 ; j < person ; j ++)
	{
		if(strcmp(name,i[j].name) == 0)
		{
			printf("%d %s %s \n",i[j].age,i[j].tel,i[j].name);
		}
		
	}sleep(2);
}

void deleteinfo(info *i)
{
	int place;
	int j;
	printf("请输入要删除的联系人序号： \n");
	scanf("%d",&place);
	for(j = place;j < person; j ++)
	{
		strcpy(i[j].name,i[j + 1].name);
		strcpy(i[j].tel, i[j + 1].name);
		i[j] =i[j + 1];

	}
    person = person - 1;
}

void showinfo(info *i)
{
	int j;

	for (j = 0; j < person; j++)
	{
		printf("%s %s %d\n", i[j].name, i[j].tel, i[j].age);
	}

	sleep(2);
}

int main()
{
	int choice;
	info in[SIZE] = {0};

	welcome();

	while (1)
	{
		menu();
		scanf("%d", &choice);

		switch(choice)
		{
			case 1:
				addinfo(in);
				break;
			case 2:
				modifyinfo(in);
				break;
			case 3:
				searchinfo(in);
				break;
			case 4:
				deleteinfo(in);
				break;
			case 5:
				showinfo(in);
				break;
			case 6:
				exit(0);      //退出进程
			default:
				printf("Error\n");
		}
	}

	return 0;
}