C++新闻检索类

研究长字符串快速全文检索技术，实现某电力公司新闻中心新闻稿件全文检索统计系统。
1、	设计实现适合新闻稿件的基础类库
2、	新闻稿件全文检索功能实现
3、	新闻稿件按照关键字统计查询

 

代码如下

Paper.h

 #pragma once
 #ifndef PAPER_H
 // we're here only if PAPER_H has not yet been defined
 #define PAPER_H

 // Definition of PAPER_H class and related functions goes here
 #include <iostream>
 #include <string>
 #include <vector>
 #define For(o,n) for (int i = 0; i < n; i++)
 using namespace std;
 class Paper {
 protected:
     int yy, mm, dd;
     string unite;
     string title;
     //there declarations for kinds of news
 public:
     friend istream& operator >> (istream&, Paper&);
     friend ostream& operator <<(ostream&, const Paper &);
     Paper();
     Paper(const Paper &asp);
     virtual ~Paper() {}
     void SetYMDear(const int year, const int month, const int day);
     int GetYear()const;
     int GetMonth()const;
     int GetDay()const;
     string GetTitle()const;
     string GetUnite()const;
     void SetUnite(const string Unite);
     void SetTitle(const string Title);
     virtual int CountWords(const string text) = ;
 };
 class Word :virtual public Paper {
 protected:
     string contain;
 public:
     friend istream& operator >> (istream&, Word&);
     friend ostream& operator <<(ostream&, const Word &);
     Word();
     Word(const string con);
     ~Word() {

     }
     int CountWords(const string text);
 };
 class vedio :virtual public Paper {
 protected:
     string act;
     string Vname;
 public:
     friend istream& operator >> (istream&, vedio&);
     friend ostream& operator <<(ostream&, const vedio&);
     vedio();
     ~vedio() {}
     vedio(const string ac, const string vn);
     string GetAct()const;
     string GetVName()const;
     int CountWords(const string text);
 };
 class Record :virtual public vedio {
 protected:
     string ReName;
 public:
     friend istream& operator >> (istream&, Record&);
     friend ostream& operator <<(ostream&, const Record &);
     Record();
     ~Record() {}
     Record(const string re);
     int CountWords(const string text);
 };
 class Poem :virtual public Word {
 public:
     Poem() {}
     ~Poem() {}
     int CountWords(const string text);
 };
 class Other :virtual public Word {
 public:
     Other() {}
     ~Other() {}
     int CountWords(const string text);
 };
 #endif

Realize.h

 #include"Paper.h"
 istream& operator >> (istream&in, Paper&rhp) {
     in >> rhp.yy >> rhp.mm >> rhp.dd >> rhp.title >> rhp.unite;
     in.ignore();
     //getline(in, rhp.contain);
     return in;
 }
 ostream& operator <<(ostream&out, const Paper &rhp) {
     out << rhp.yy << endl
         << rhp.mm << endl
         << rhp.dd << endl
         << rhp.title << endl
         << rhp.unite << endl;
     //    << rhp.contain << endl;
     return out;
 }
 Paper::Paper() :yy(), mm(), dd(), unite("xxx"), title("!!!") {}
 Paper::Paper(const Paper &asp) { yy = asp.yy; mm = asp.mm; dd = asp.dd; unite = asp.unite; title = asp.title; }
 void Paper::SetYMDear(const int year, const int month, const int day) { yy = year, mm = month, dd = day; }
 void Paper::SetTitle(const string Title) { title = Title; }
 void Paper::SetUnite(const string Unite) { unite = Unite; }
 int Paper::GetDay()const { return dd; }
 int Paper::GetYear()const { return yy; }
 int Paper::GetMonth()const { return mm; }
 string Paper::GetTitle()const { return title; }
 string Paper::GetUnite()const { return unite; }

 istream& operator >> (istream&in, Word&rhp) {
     in >> rhp.yy >> rhp.mm >> rhp.dd >> rhp.title >> rhp.unite;
     in.ignore();
     getline(in, rhp.contain);
     return in;
 }
 ostream& operator <<(ostream&out, const Word &rhp) {
     out << rhp.yy << endl
         << rhp.mm << endl
         << rhp.dd << endl
         << rhp.title << endl
         << rhp.unite << endl
         << rhp.contain << endl;
     return out;
 }
 Word::Word() :contain("xxx") {

 }
 Word::Word(const string con) { contain = con; }
 int Word::CountWords(const string text) {
     int ans = ;
     auto pos = contain.find(text);
     while (pos != string::npos) {
         ans++;
         pos = contain.find(text, ++pos);
     }
     return ans;
 }
 istream& operator >> (istream&in, vedio&rhp) {
     in >> rhp.yy >> rhp.mm >> rhp.dd >> rhp.title >> rhp.unite >> rhp.Vname;
     in.ignore();
     getline(in, rhp.act);
     return in;
 }
 ostream& operator <<(ostream&out, const vedio &rhp) {
     out << rhp.yy << endl
         << rhp.mm << endl
         << rhp.dd << endl
         << rhp.title << endl
         << rhp.unite << endl
         << rhp.act << endl
         << rhp.Vname << endl;
     return out;
 }
 vedio::vedio() :act("xxx"), Vname("XXXX") {}
 vedio::vedio(const string ac, const string vn) { act = ac, Vname = vn; }
 string vedio::GetAct()const { return act; }
 string vedio::GetVName()const { return Vname; }
 int vedio::CountWords(const string text) {
     int ans = ;
     int pos = act.find(text);
     while (pos != string::npos) {
         ans++;
         pos = act.find(text, ++pos);
     }
     return ans;
 }
 istream& operator >> (istream&in, Record&rhp) {
     in >> rhp.yy >> rhp.mm >> rhp.dd >> rhp.title >> rhp.unite >> rhp.ReName;
     in.ignore();
     getline(in, rhp.act);
     return in;
 }
 ostream& operator <<(ostream&out, const Record &rhp) {
     out << rhp.yy << endl
         << rhp.mm << endl
         << rhp.dd << endl
         << rhp.title << endl
         << rhp.unite << endl
         << rhp.act << endl
         << rhp.ReName << endl;
     return out;
 }
 Record::Record() :ReName("XXXX") {}
 Record::Record(const string re) { ReName = re; }
 int Record::CountWords(const string text) {
     return vedio::CountWords(text);
 }
 int Poem::CountWords(const string text) {
     int ans = ;
     string flag = GetTitle();
     auto pos = flag.find(text);
     while (pos != string::npos) {
         ans++;
         pos = flag.find(text, ++pos);
     }
     return ans;
 }
 int Other::CountWords(const string text)
 {
     int ans = ;
     string flag = GetTitle();
     auto pos = flag.find(text);
     while (pos != string::npos) {
         ans++;
         pos = flag.find(text, ++pos);
     }
     return ans;
 }
 void ShowSTD() {
     cout << "Please input kinds of News in follow fomat." << endl
         << "Word or Poem or Other News:" << endl
         << "Year Month Day Title Unite\nContain(Contain at the end of ENTER)" << endl
         << "vedio or Record News:" << endl
         << "Year Month Day Title Unite Filename\nAbstract(Abstract at the end of ENTER)" << endl;
 }

test.cpp

 #include"Realize.h"
 int main() {
     ShowSTD();
     Paper *tp[];
     Word a1;
     vedio a2;
     Record a3;
     Poem a4;
     Other a5;
     string flag;
     int n = ;
     cout << "\nNow Inpt！！\nWord:";
     cin >> a1;
     tp[] = &a1;
     cout << "vedio:";
     cin >> a2;
     tp[] = &a2;
     cout << "Record:";
     cin >> a3;
     tp[] = &a3;
     cout << "Poem:";
     cin >> a4;
     tp[] = &a4;
     cout << "Other:";
     cin >> a5;
     tp[] = &a5;
     cout << "Please enter the word you want to find:";
     cin >> flag;
     For(o, n)cout << tp[i]->CountWords(flag) << endl;
     cout << endl;
     For(o, n)cout << *(tp[i]) << endl;
     return ;
 }

测试截图如下：