本文实例为大家分享了C++实现简单的通讯录管理系统的具体代码，供大家参考，具体内容如下
一、代码
#include <iostream>
#include <string>
#include <cstring>
#include <fstream>
using namespace std;
//自定义一个联系人结点类型
typedef struct node1
{
string name; //姓名
string tel; //手机号
string email; //邮箱
string address; //地址
struct node1 *next; //指向下一节点的指针
} Node;
//自定义一个二叉排序树结点类型
typedef struct node2
{
Node data;
struct node2 *lchild, *rchild;
} BSTNode;
//构造结点通讯录类
class Fnode
{
public:
Fnode(); //构造函数，用于初始化一些变量
~Fnode(); //析构函数，用于程序结束之后对分配的内存进行清理
void CreateInfo(); //录入联系人信息
void InsertInfo(); //插入联系人信息
void FindInfoName(); //按姓名查找联系人信息
void FindInfoTel(); //按手机号查找联系人信息
void DeleteInfoTel(); //按手机号删除联系人信息
void DispInfo(); //打印所有联系人信息
void DispInfoSort(); //按姓名排序输出联系人信息
void SaveInfoToFile(); //保存联系人信息至文件
void ReadInfoFromFile(); //从文件读取联系人信息
void Run(); //功能函数，包含菜单和相关函数的入口
bool InsertBST(BSTNode *&bt, Node key); //插入二叉排序树结点,递归实现
void CreateBST(); //由链表创建二叉排序树
void InOrder(BSTNode *b); //中序遍历输出二叉排序树，递归实现
void DestroyBST(BSTNode *&b); //释放二叉排序树,递归实现
private:
bool opened; //用于表明文件是否被读取过，未读为0,已读为1
Node *L, *p, *q; //定义通讯录结点的头指针和其他成员函数中可能用到的指针
BSTNode *btree; //二叉排序树头节点
};
//构造函数，用于初始化一些变量
Fnode::Fnode()
{
L = new Node;
L->next = NULL;
p = q = NULL;
btree = NULL;
opened = 0;
}
//析构函数，用于程序结束之后对分配的内存进行清理
Fnode::~Fnode()
{
p = L;
while (p != NULL)
{
delete p;
p = p->next;
}
}
void Fnode::CreateInfo() //创建结点
{
int n;
q = L, p = NULL;
while (q->next != NULL)
q = q->next;
cout << "请输入您要录入的联系人个数:";
cin >> n;
for (int i = 0; i < n; i++)
{
p = new Node;
cout << "请输入第" << i + 1 << "位联系人的姓名、手机号、邮箱和地址(用空格隔开):" << endl;
cin >> p->name >> p->tel >> p->email >> p->address;
p->next = q->next;
q->next = p;
q = p;
}
}
//插入联系人信息
void Fnode::InsertInfo()
{
q = L, p = NULL;
while (q->next != NULL)
q = q->next;
p = new Node;
cout << "请输入您要插入的联系人的姓名、手机号、邮箱和地址(用空格隔开):" << endl;
cin >> p->name >> p->tel >> p->email >> p->address;
p->next = q->next;
q->next = p;
cout << "插入成功!" << endl;
}
//打印所有联系人信息
void Fnode::DispInfo()
{
p = L->next;
if (p == NULL)
cout << "数据为空，无法打印" << endl;
else
{
cout << "姓名 \t\t"
<< "手机号 \t\t"
<< "邮箱 \t\t"
<< "地址" << endl;
while (p != NULL)
{
cout << p->name << "\t\t" << p->tel << "\t\t" << p->email << "\t\t" << p->address << endl;
p = p->next;
}
}
}
//按姓名查找联系人信息
void Fnode::FindInfoName()
{
string name;
p = L->next;
if (p == NULL)
cout << "数据为空，无法查找" << endl;
else
{
cout << "请输入要查找的联系人的姓名:";
cin >> name;
while (p->name != name)
{
p = p->next;
if (p == NULL)
{
cout << "没有找到相关联系人信息" << endl;
return;
}
}
cout << "该联系人的信息如下" << endl;
cout << "姓名 \t\t"
<< "手机号 \t\t"
<< "邮箱 \t\t"
<< "地址" << endl;
cout << p->name << "\t\t" << p->tel << "\t\t" << p->email << "\t\t" << p->address << endl;
}
}
//按手机号查找联系人信息
void Fnode::FindInfoTel()
{
string tel;
p = L->next;
if (p == NULL)
cout << "数据为空，无法查找" << endl;
else
{
cout << "请输入要查找的联系人的手机号:";
cin >> tel;
while (p->tel != tel)
{
p = p->next;
if (p == NULL)
{
cout << "没有找到相关信息" << endl;
return;
}
}
cout << "该联系人的信息如下" << endl;
cout << "姓名 \t\t"
<< "手机号 \t\t"
<< "邮箱 \t\t"
<< "地址" << endl;
cout << p->name << "\t\t" << p->tel << "\t\t" << p->email << "\t\t" << p->address << endl;
}
}
//按手机号删除联系人信息
void Fnode::DeleteInfoTel()
{
string tel;
p = L->next, q = L;
if (p == NULL)
cout << "数据为空，无法删除" << endl;
else
{
cout << "请输入要删除的联系人的手机号" << endl;
cin >> tel;
while (p->tel != tel)
{
p = p->next;
q = q->next;
if (p == NULL)
{
cout << "没有找到相关信息" << endl;
return;
}
}
q->next = p->next;
delete p;
cout << "手机号为" << tel << "的联系人删除成功!" << endl;
}
}
//按姓名排序输出联系人信息
void Fnode::DispInfoSort()
{
CreateBST();
cout << "姓名 \t\t"
<< "手机号 \t\t"
<< "邮箱 \t\t"
<< "地址" << endl;
InOrder(btree);
DestroyBST(btree);
}
//保存联系人信息至文件
void Fnode::SaveInfoToFile()
{
p = L->next;
if (p == NULL)
cout << "数据为空，无法写入!" << endl;
else
{
ofstream outfile("./联系人.csv");
if (!outfile)
{
cout << "无法打开文件!";
return;
}
outfile << "姓名,"
<< "手机号,"
<< "邮箱,"
<< "地址" << endl;
while (p->next != NULL)
{
outfile << p->name << "," << p->tel << "," << p->email << "," << p->address << endl;
p = p->next;
}
outfile << p->name << "," << p->tel << "," << p->email << "," << p->address;
outfile.close();
cout << "保存联系人信息成功！请查看当前目录下的“联系人.csv文件”" << endl;
}
}
//从文件读取联系人信息
void Fnode::ReadInfoFromFile()
{
ifstream infile("./联系人.csv");
if (!infile)
{
cout << "无法打开文件!";
return;
}
else if (opened == 1)
{
cout << "文件已经被读取，不能够重复读取!" << endl;
return;
}
else
{
char str[500];
q = L, p = NULL;
while (q->next != NULL)
q = q->next;
infile.getline(str, sizeof(str));
while (!infile.eof())
{
p = new Node;
infile.getline(str, sizeof(str));
p->name = strtok(str, ",");
p->tel = strtok(NULL, ",");
p->email = strtok(NULL, ",");
p->address = strtok(NULL, ",");
p->next = q->next;
q->next = p;
q = p;
}
infile.close();
cout << "读取数据成功！" << endl;
opened = 1;
}
}
//插入二叉排序树结点
bool Fnode::InsertBST(BSTNode *&bt, Node key)
{
if (bt == NULL)
{
bt = new BSTNode;
bt->data = key;
bt->lchild = bt->rchild = NULL;
return true;
}
else if (key.name == bt->data.name)
return false;
else if (key.name < bt->data.name)
return InsertBST(bt->lchild, key);
else
return InsertBST(bt->rchild, key);
}
//由链表创建二叉排序树
void Fnode::CreateBST()
{
btree = NULL;
p = L->next;
while (p != NULL)
{
InsertBST(btree, *p);
p = p->next;
}
}
//中序遍历输出二叉排序树
void Fnode::InOrder(BSTNode *b)
{
if (b != NULL)
{
InOrder(b->lchild);
cout << b->data.name << "\t\t" << b->data.tel << "\t\t" << b->data.email << "\t\t" << b->data.address << endl;
InOrder(b->rchild);
}
}
//释放二叉排序树
void Fnode::DestroyBST(BSTNode *&b)
{
if (b != NULL)
{
DestroyBST(b->lchild);
DestroyBST(b->rchild);
delete b;
}
}
//菜单
void Fnode::Run()
{
int item;
do
{
cout << "\t\t\t==================通讯录管理系统==================" << endl;
cout << "\t\t\t# \t #" << endl;
cout << "\t\t\t# \t1)联系人信息的逐条录入。 #" << endl;
cout << "\t\t\t# \t2)插入某个联系人的信息。 #" << endl;
cout << "\t\t\t# \t3)按手机号查找某个联系人的信。 #" << endl;
cout << "\t\t\t# \t4)按姓名查询某个联系人。 #" << endl;
cout << "\t\t\t# \t5)按手机号删除某个联系人的信息 #" << endl;
cout << "\t\t\t# \t6)所有联系人信息的输出显示。 #" << endl;
cout << "\t\t\t# \t7)所有联系人按姓名排序并输出显示。 #" << endl;
cout << "\t\t\t# \t8)所有联系人信息的文件保存。 #" << endl;
cout << "\t\t\t# \t9)所有联系人信息的文件读取。 #" << endl;
cout << "\t\t\t# \t0)退出管理系统。 #" << endl;
cout << "\t\t\t==================================================" << endl;
cout << "请输入相应的命令，执行相应的功能:";
cin >> item;
system("cls");
switch (item)
{
case 1:
CreateInfo();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 2:
InsertInfo();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 3:
FindInfoTel();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 4:
FindInfoName();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 5:
DeleteInfoTel();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 6:
DispInfo();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 7:
DispInfoSort();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 8:
SaveInfoToFile();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 9:
ReadInfoFromFile();
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
break;
case 0:
cout << "即将退出通讯录管理系统......" << endl;
cout << "谢谢您的使用!";
exit(0);
break;
default:
cout << "您输入的指令错误，请重新输入!" << endl;
getchar();
cout << "\n按任意键返回主菜单" << endl;
getchar();
system("cls");
}
} while (item);
}
//主函数
int main()
{
Fnode f;
system("cls");
f.Run();
return 0;
}二、功能展示
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
