通讯录:C++实现

 

//任何转载源代码的请保留出处作者等相关信息

//作者:chlaws

//运行环境:visual studio 2008

//项目:通讯录

//描述:可以作为课题设计或毕业论文

//说明:这里不给出原创的思路，在阅读过程中有不懂得可以询问

//main.cpp #ifndef HEADFILE #define HEADFILE #include <iostream> #include <string> #include <algorithm> #include <fstream> #include <list> #include <io.h> #include <iterator> #include <cassert> #include <sstream> using namespace std; #endif #include "telbook.h" #include "contacts.h" int main() { TelBook a1("asd.dat"); a1.Menu(); return 0; } 

 

//contacts.h #ifndef HEADFILE #define HEADFILE #include <iostream> #include <string> #include <algorithm> #include <fstream> #include <list> #include <io.h> #include <iterator> #include <cassert> #include <sstream> using namespace std; #endif #ifndef _CONTACTS_H_ #define _CONTACTS_H_ class Contacts { //friend TelBook; public: Contacts():_name(""),_addr(""),_qqnum(""),_telnum(""){} Contacts(string name,string addr,string qqnum,string telnum) :_name(name),_telnum(telnum),_qqnum(qqnum),_addr(addr){} Contacts(char* name,char* addr,char* qqnum,char* telnum) :_name(name),_telnum(telnum),_qqnum(qqnum),_addr(addr){} Contacts(const Contacts& rhs) :_name(rhs._name),_addr(rhs._addr),_qqnum(rhs._qqnum),_telnum(rhs._telnum){} Contacts& operator=(const Contacts& rhs) { _name=rhs._name; _addr=rhs._addr; _qqnum=rhs._qqnum; _telnum=rhs._telnum; return *this; } void InitContacts() { cout << "Start Input Contacts Info/n" << "name:"; cin >> _name; cout << "/ntel:"; cin >> _telnum ; cout << "/nqq:" ; cin >> _qqnum; cout << "/naddr:"; cin >> _addr ; cout << "End Input Contacts Info/n" << endl; } //operator name string GetName() { return _name; } const char* GetName()const { return _name.c_str(); } void SetName(string name) { _name=name; } void SetName(char* name) { _name=name; } //operator telephone number string GetTelnum() { return _telnum; } const char* GetTelnum()const { return _telnum.c_str(); } void SetTelnum(string telnum) { _telnum=telnum; } void SetTelnum(char* telnum) { _telnum=telnum; } //opeartor address string GetAddr() { return _addr; } const char* GetAddr()const { return _addr.c_str(); } void SetAddr(string addr) { _addr=addr; } void SetAddr(char* addr) { _addr=addr; } //operator qq number string Getqqnum() { return _qqnum; } const char* Getqqnum()const { return _qqnum.c_str(); } void Setqqnum(string qqnum) { _qqnum=qqnum; } void Setqqnum(char* qqnum) { _qqnum=qqnum; } friend ostream& operator<<(ostream& os,const Contacts& rhs); friend istream& operator>>(istream& is, Contacts& rhs); friend fstream& operator>>(fstream& in, Contacts& rhs); friend fstream& operator<<(fstream& out,const Contacts& rhs); ~Contacts(){} private: string _name;//姓名 string _addr;//联系地址 string _qqnum;//QQ号 string _telnum;//电话号码 }; #endif 

 

//contacts.cpp #include "contacts.h" ostream& operator<<(ostream& os,const Contacts& rhs) { os << "name:"<< rhs._name << "/n" << "tel:" << rhs._telnum << "/tqq:" << rhs._qqnum << "/n" << "addr:" << rhs._addr << endl; return os; } istream& operator>>(istream& is, Contacts& rhs) { cout << "输入姓名:"; is >> rhs._name ; cout << endl; cout << "输入电话号码:"; is >> rhs._telnum; cout << endl; cout << "输入qq号码:"; is >> rhs._qqnum ; cout << endl; cout << "输入联系地址:"; is >> rhs._addr; return is; } fstream& operator>>(fstream& in,Contacts& rhs) { string line=""; getline(in,line); if(line.size() == 0) return in; istringstream instrstream(line); instrstream >> rhs._name >> rhs._telnum >> rhs._qqnum >> rhs._addr; return in; } fstream& operator<<(fstream& out,const Contacts& rhs) { out << rhs._name <<"/t"<< rhs._telnum <<"/t"<< rhs._qqnum <<"/t"<< rhs._addr<<"/n"; return out; } 

 

 

//telbook.h #ifndef HEADFILE #define HEADFILE #include <iostream> #include <string> #include <algorithm> #include <fstream> #include <list> #include <io.h> #include <iterator> #include <cassert> #include <sstream> using namespace std; #endif #ifndef _TELBOOK_H_ #define _TELBOOK_H_ #include "contacts.h" class TelBook { public: TelBook(char* fname):_fname(fname) { init(fname); } TelBook(string fname=""):_fname(fname) { init(fname.c_str()); } void InitBook() { string fname; cout << "input file name:"; cin >> fname; init(fname.c_str()); } ~TelBook() { if(wflag) EndWrite(); } bool Modify();//通过查找姓名,找到要修改的整个联系人的信息,并修改。如果没有找到则出错返回 void Add(); int Search(); bool Remove(); void ShowAll(); void ShowSingle(int index); void Menu();//功能菜单 string GetFileName(); private: void init(const char* fname); void StartLoad(); void EndWrite(); int searchbyname(); int searchbyphone(); //data int wflag;//用来标识写入的次数,这里只有在操作结束后才写入 //初始为1,写入后减1为0,若没有写入则在析构函数调用写入函数; int sflag;//用来标识是否要从文件加载到列表，0不需要加载，1需要加载 fstream _fio; string _fname; list<Contacts> _ltel; }; #endif 

 

 

 

//telbook.cpp #include "telbook.h" #include <windows.h> bool TelBook::Modify()//通过查找姓名,找到要修改的整个联系人的信息,并修改。如果没有找到则出错返回 { cout << "Modify Contacts info by find 【old name】 then do it! " << endl; int selnum; string tmpvalue; int index=searchbyname(); if(index == -1) { return false; } list<Contacts>::iterator it=_ltel.begin(); advance(it,index); string MPrompt="Select Choice!/n1.修改姓名./n2.修改电话号码./n3.修改QQ号./n4.修改地址./n5.全部修改"; cout << MPrompt <<endl << "select :"; cin >> selnum; switch(selnum) { case 1://modify name cout <<"input new name:"; cin >> tmpvalue; it->SetName(tmpvalue); break; case 2://modify telephone number cout <<"input new telephone number:"; cin >> tmpvalue; it->SetTelnum(tmpvalue); break; case 3://modify qq number cout <<"input new qq number:"; cin >> tmpvalue; it->Setqqnum(tmpvalue); break; case 4://modify address cout <<"input new address"; cin >> tmpvalue; it->SetAddr(tmpvalue); break; case 5://modify all cout <<"input new name:"; cin >> tmpvalue; it->SetName(tmpvalue); cout <<"input new telephone number:"; cin >> tmpvalue; it->SetTelnum(tmpvalue); cout <<"input new qq number:"; cin >> tmpvalue; it->Setqqnum(tmpvalue); cout <<"input new address"; cin >> tmpvalue; it->SetAddr(tmpvalue); break; default: cout <<"Choice Error" << endl; return false; } return true; } void TelBook::Add() { Contacts item; cin >> item; _ltel.push_back(item); } int TelBook::Search()//提供两种查询方式，找到则输出联系人的详细信息 { int retnum=-1;//保存返回值; int selnum; string SPrompt="Select Choice!/n1.通过姓名查找./n2.通过电话号码查找."; cout << SPrompt << endl; cin >> selnum; switch(selnum) { case 1: retnum=searchbyname(); break; case 2: retnum=searchbyphone(); break; default: cout << "Select Error/n" << endl; retnum=-1; break; } //cout << "retnum=" <<retnum << endl; return retnum; } bool TelBook::Remove() { int selnum; string SPrompt="Select Choice(only remove one item)!/n1.通过姓名删除整项./n2.通过电话号码删除整项./n3.通过在列表中该项的位置删除整项"; cout << SPrompt << endl; cin >> selnum; int index;//用来保存要删除的项在列表中的索引号 switch(selnum) { case 1: index=searchbyname(); break; case 2: index=searchbyphone(); break; case 3: cout << "you should inuput index range is:from 1 to "; cout << _ltel.size() << endl; cout << "input index:"; cin >> index; assert( (index > 0) && (index <= static_cast<int>(_ltel.size()) ) ); index=index-1;//用来保持和列表的索引相同.如第1项的索引在列表中是为0 break; default: cout << "Choice Error!/n" << endl; return false; } list<Contacts>::iterator it = _ltel.begin(); if(index == -1) { return false; } advance(it,index); _ltel.erase(it); return true; } void TelBook::ShowAll() { ostream_iterator<Contacts>out(cout,"/n"); copy(_ltel.begin(),_ltel.end(),out); } void TelBook::ShowSingle(int index) { int tmpindex=index; list<Contacts>::iterator it=_ltel.begin(); while(tmpindex-- && it!=_ltel.end()) it++; cout << *it << endl; } inline string TelBook::GetFileName() { return _fname; } void TelBook::init(const char* fname) { _ltel.clear(); //测试文件是否存在，存在，则加载到列表中，不存在则创建新文件 if(_access(fname,0) == -1) { cout << "file not existing,will create!" << endl; _fio.open(fname,ios::out); //创建文件，访问方式为写 cout << "You shoud appending new contacts to list" << endl; sflag=0; } else { _fio.open(fname,ios::in | ios::out); _fio.seekg(0,ios_base::end); if(!_fio.tellg()) { cout << "You shoud appending new contacts to list" << endl; sflag = 0; } else sflag=1; _fio.seekg(0,ios_base::beg); } wflag=1; } void TelBook::StartLoad() { Contacts item; _fio.seekg(0); while(_fio >> item)//Q:若采用_fio.eof做条件不知为何每次在读最后一条时会重复再读一次 { _ltel.push_back(item); } } void TelBook::EndWrite() { _fio.close(); _fio.clear(); _fio.open(_fname.c_str(),ios_base::out|ios_base::trunc); Contacts item; list<Contacts>::iterator it=_ltel.begin(); while(it!=_ltel.end()) { item=*it; _fio << item; it++; } _fio.close(); } int TelBook::searchbyname() { string name; cout << "input name:"; cin >> name; list<Contacts>::iterator it=_ltel.begin(); //it=find_if(_ltel.begin(),_ltel.end(),PredByName); while(it != _ltel.end()) { if( ( it->GetName().compare(name) ) == 0 )//找到匹配元素则退出 break; it++; } if(it == _ltel.end()) return -1; else return distance(_ltel.begin(),it); } int TelBook::searchbyphone() { string telnum;//电话号码 cout << "input telephone number:"; cin >> telnum; list<Contacts>::iterator it=_ltel.begin(); //it=find_if(_ltel.begin(),_ltel.end(),PredByName); while(it != _ltel.end()) { if( ( it->GetTelnum().compare(telnum) ) == 0 )//找到匹配元素则退出 break; it++; } if(it == _ltel.end()) return -1; else return distance(_ltel.begin(),it); } void TelBook::Menu() { //决定是否从文件当中加载信息 if( sflag == 1 ) StartLoad(); else if( sflag == 0 ) cout << "No Contacts info in file!" << "You should select 1 to add!"<<endl; int pos=0; int selnum=-1; string SPrompt="Select Choice/n1.添加/n2.删除/n3.查找/n4.显示/n5.修改/n6.退出/nSelect:"; while(1 && (selnum!=6)) { cout << SPrompt << endl; cin >> selnum; switch(selnum) { case 1://添加 Add(); continue; case 2://删除 if( Remove() == false ) cout << "Remove Error!" << endl; continue; case 3://查找 pos=Search(); if( pos == -1) { cout << "Not Find/n" << endl; continue; } else { ShowSingle(pos); continue; } continue; case 4://显示 ShowAll(); continue; case 5://修改 if( Modify() == false ) cout << "修改失败" << endl; else cout << "修改成功" << endl; continue; case 6://退出 cout << "已退出" << endl; break; default: cout << "Choice Error!Select Again!" << endl; } } }