C++练习---通讯录系统代码

//通讯录管理系统C++
#include <iostream>
#include <string>
using namespace std;
#define MAX 100

void Menu(void)
{
	cout<<"********通讯录管理系统************"<<endl;
	cout<<"********1、添加通讯录信息*********"<<endl;
	cout<<"********2、显示成员信息***********"<<endl;
	cout<<"********3、删除成员信息***********"<<endl;
	cout<<"********4、查找成员信息***********"<<endl;
	cout<<"********5、修改成员信息***********"<<endl;
	cout<<"********6、清空通讯录*************"<<endl;
	cout<<"********0、退出通讯录系统*********"<<endl;
}

//通讯录成员信息结构
struct people
{
	string name;
	int sex;
	string phone;
};
//通讯录结构体
struct addressbook 
{
	struct people Book[MAX];
	int n_size;//当前通讯录的成员数量
};
typedef struct addressbook* AddressBook;

//1、添加通讯录成员信息
void AddressAdd(AddressBook S)
{
	//首先判断是否满
	if(S->n_size==MAX)
	{
		cout<<"通讯录已满，添加失败"<<endl;
		return;
	}
	else//添加，并将n_size+1
	{
		//姓名
		cout<<"请输入姓名:"<<endl;
		string name;
		cin>>name;
		S->Book[S->n_size].name=name;
		//性别
		cout<<"请输入性别---1：男---0：女"<<endl;
		int sex;
		cin>>sex;
		S->Book[S->n_size].sex=sex;
		//电话号码
		cout<<"请输入号码:"<<endl;
		string phone;
		cin>>phone;
		S->Book[S->n_size].phone=phone;
	}
	cout<<"添加成功"<<endl;
	S->n_size++;
	return;
}

//2、显示通讯录
void addressshow(AddressBook S,int i)
{
	cout<<"姓名:"<<S->Book[i].name<<"\t";
	cout<<"性别:"<<(S->Book[i].sex==1?"男":"女")<<"\t"<<"\t";
	cout<<"号码:"<<S->Book[i].phone<<endl;
}
void AddressShow(AddressBook S)
{
	int i=0;
	//判断通讯录是否为空
	if(S->n_size==0)
	{
		cout<<"通讯录空"<<endl;
		return;
	}
	else
	{
		for(i=0;i<S->n_size;i++)
		{
			addressshow(S,i);
		}
		return;
	}
}
//查找通讯录成员是否存在
int IsExit(AddressBook S,string name)
{
	int i=0;
	//判断通讯录是否为空
	if(S->n_size==0)return -1;
	else
	{
		for(i=0;i<S->n_size;i++)
		{
			if(S->Book[i].name==name)
				return i;
		}
	}
	return -1;
}
//3、删除成员信息
void Delete(AddressBook S,string name)
{
	int ret=0;
	int i=0;
	//查找是否存在
	ret=IsExit(S,name);
	if(ret==-1)
		cout<<"查无此人"<<endl;
	else
	{
		//i以后依次前移,n_size减一
		for(i=ret;i<S->n_size;i++)
		{
			S->Book[i]=S->Book[i+1];
		}
		S->n_size--;
	}
	return;
}

//4、查找成员信息
void AddressFind(AddressBook S,string name)
{
	int ret=0;
	int i=0;
	//查找是否存在
	ret=IsExit(S,name);
	if(ret==-1)
		cout<<"查无此人"<<endl;
	else
		addressshow(S,ret);
	return;
}

//5、修改成员信息
void AddressModify(AddressBook S,string name)
{
	int ret=0;
	int i=0;
	//查找是否存在
	ret=IsExit(S,name);
	if(ret==-1)
		cout<<"查无此人"<<endl;
	else
	{
		//姓名
		cout<<"请输入姓名:"<<endl;
		string name;
		cin>>name;
		S->Book[ret].name=name;
		//性别
		cout<<"请输入性别---1：男---0：女"<<endl;
		int sex;
		cin>>sex;
		S->Book[ret].sex=sex;
		//电话号码
		cout<<"请输入号码:"<<endl;
		string phone;
		cin>>phone;
		S->Book[ret].phone=phone;
	}
	return;
}
//6、清空通讯录
void AddressEmpty(AddressBook S)
{
	S->n_size=0;
	cout<<"通讯录已清空"<<endl;
	return;
}

int main()
{
	//创建变量
	addressbook abs;//通讯录结构体
	AddressBook ABS;//通讯录指针
	ABS=&abs;
	//初始化通讯录中人数
	ABS->n_size=0;
	while(true)
	{
		//显示页面
		Menu();
		int select=0;
		cin>>select;
		switch(select)
		{
		case 1://添加通讯录信息
				AddressAdd(ABS);
				////测试,此处n_size已经+1，故要减1实现测试
				//cout<<ABS->Book[ABS->n_size-1].name<<endl;
				//system("pause");
			break;
		case 2://显示通讯录信息
			AddressShow(ABS);
			break;
		case 3://删除通讯录信息
			{
				cout<<"输入删除信息:"<<endl;
				string name;
				cin>>name;
				Delete(ABS,name);
			}
			break;
		case 4://查找信息
			{
				cout<<"输入查找信息:"<<endl;
				string name;
				cin>>name;
				AddressFind(ABS,name);
			}
			break;
		case 5://修改成员信息
			{
				cout<<"输入查找信息:"<<endl;
				string name;
				cin>>name;
				AddressModify(ABS,name);
			}
			break;
		case 6://清空通讯录
				AddressEmpty(ABS);
			break;
		case 0:
			{
				cout<<"退出通讯录系统"<<endl;
				return 0;
				break;	
			}
		default:
			{
				cout<<"错误，请重新输入"<<endl;
				break;
			}
		}
		system("pause");
		system("cls");
	}
	return 0;
}