用C++实现链表版本通讯录

#include <iostream>
#include <string>
using namespace std;
class Address;

class Contact{
private:
string name;
string sex;
string tel;
string QQ;
string address;
string addition;
Contact *next;
public:
Contact();
friend class Address;

};
Contact::Contact()
{
next = NULL;
}
class Address{
public:
Address();
~Address();
int show();
void insert();
void delete_per();
void display();
void search();
void update();
private:
Contact *head;
};
Address::Address()
{
head = new Contact;
if(head == NULL)
{
cout<<"fail create"<<endl;
}
}
Address::~Address()
{
delete head;
}
int Address::show()                                                              //主菜单函数
{
int choice = 0 ;
cout<<"\t\t\t\t**************************"<<endl;
cout<<"\t\t\t\t*   通讯录c++简易版本    *"<<endl;
cout<<"\t\t\t\t**************************"<<endl;
cout<<"\t\t\t\t* 1、添加    2、删除     *"<<endl;
cout<<"\t\t\t\t**************************"<<endl;
cout<<"\t\t\t\t* 3、查看    4、搜索     *"<<endl;
cout<<"\t\t\t\t**************************"<<endl;
cout<<"\t\t\t\t* 5、更新    6、退出     *"<<endl;
cout<<"\t\t\t\t**************************"<<endl;
cout<<"\t\t\t\t请输入选择：";
cin>>choice;
while(!(choice >= 1&&choice <= 6))
{
while(getchar()!='\n');
cout<<"输入有误，请重新输入！";
cin>>choice;
}
return choice;

}
void Address::insert()                                                          //添加联系人
{
Contact *p = head;
char relay = 0;
while(p->next != NULL)
{
p = p->next;
}
Contact *person = new Contact;
cout<<"请输入姓名：";
cin>>person->name;
cout<<"请输入性别：";
cin>>person->sex;
cout<<"请输入电话：";
cin>>person->tel;
cout<<"请输入QQ：";
cin>>person->QQ;
cout<<"请输入住址：";
cin>>person->address;
cout<<"请输入备注：";
cin>>person->addition;
p->next = person;
person->next = NULL;
cout<<"\n添加成功，是否继续添加？（y/n）";
cin>>relay;
while(!(relay == 'y'||relay == 'Y'||relay == 'N'||relay == 'n'))
{
cout<<"输入错误，请重新输入（y/n）：";
cin>>relay;
}
if(relay == 'y'||relay == 'y')
{
system("clear");
insert();
}
}
void Address::delete_per()                                                      //删除联系人
{
string m_name;
Contact *p = head;
Contact *pre = head;
int flag = 0;
cout<<"请输入你要删除的联系人姓名！";
cin>>m_name;
while(p->next != NULL)
{
pre = p;
p = p->next;
if(p->name == m_name)
{
pre->next = p->next;
delete p;
p = NULL;
flag = 1;
break;
}
}
if(flag == 1)
{
cout<<"删除成功！"<<endl;
}
else
{
cout<<"您删除的联系人不存在，删除失败！"<<endl;
}
}

void Address::display()                                                         //查看联系人
{
Contact *p = head;
while(p->next != NULL)
{
p = p->next;
cout<<endl<<"======================================="<<endl;
cout<<"姓名："<<p->name<<endl;
cout<<"性别："<<p->sex<<endl;

4000
cout<<"电话："<<p->tel<<endl;
cout<<"QQ："<<p->QQ<<endl;
cout<<"地址："<<p->address<<endl;
cout<<"备注："<<p->addition<<endl;
}

}
void Address::search()                                                          //搜索联系人
{
string m_name;
Contact *p = head;
int flag = 0;
cout<<"请输入你要搜索的联系人姓名:";
cin>>m_name;
while(p->next != NULL)
{
p = p->next;
if(p->name == m_name)
{
cout<<endl<<"======================================="<<endl;
cout<<"姓名："<<p->name<<endl;
cout<<"性别："<<p->sex<<endl;
cout<<"电话："<<p->tel<<endl;
cout<<"QQ："<<p->QQ<<endl;
cout<<"地址："<<p->address<<endl;
cout<<"备注："<<p->addition<<endl;
flag = 1;
}
}
if(flag == 1)
{
cout<<"\n查询成功！"<<endl;
}
else
{
cout<<"您查询的联系人不存在，删除失败！"<<endl;
}
}
void Address::update()                                                            //修改联系人
{
Contact *p = head;
string m_name;
int flag = 0;

cout<<"请输入你要更新的姓名：";
cin>>m_name;
while(p->next != NULL)
{
p = p->next;
if(p->name == m_name)
{
cout<<"请更新性别：";
cin>>p->sex;
cout<<"请更新电话：";
cin>>p->tel;
cout<<"请更新QQ：";
cin>>p->QQ;
cout<<"请更新住址：";
cin>>p->address;
cout<<"请更新备注：";
cin>>p->addition;
flag = 1;
break;
}
}
if(flag == 1)
{
cout<<"\n更新成功"<<endl;
}
else
{
cout<<"查无此人，更新失败！"<<endl;
}
}

int main()
{
Address *person = new Address;
int choice = 0;
while(1)
{
system("clear");
choice = person->show();
switch(choice)
{
case 1:
{
system("clear");
person->insert();
break;
}
case 2:
{
system("clear");
person->delete_per();
break;
}
case 3:
{
system("clear");
person->display();
break;
}
case 4:
{
system("clear");
person->search();
break;
}
case 5:
{
system("clear");
person->update();
break;
}
case 6:
{
exit(0);
}
}
cout<<"\n\n按任意键返回.....";
getchar();
getchar();
}
return 0;
}