第13周项目OOP版电子词典

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编号及代码：/**Copyright(c)2015,烟台大学计算机与工程学院*All rights reserved;*文件名称：score.cpp*作者：范星月*完成日期：2015年6月9日*版本号：v1.0**问题描述：*问题输入：*问题输出：*/#include<iostream>#include<string>#include<cstdlib>using namespace std;//定义词条类class Word{public:    void set(string e, string c, string wc);    int compare(string);  //英语部分与给定字符串比较，等于返回，大于返回，小于返回-1    string getChinese();    string getWord_class();private:   string english;    string chinese;    string word_class;}; void Word::set(string e,string c,string wc) {     english=e;     chinese=c;     word_class=wc; }int Word::compare(string k){    return english.compare(k);} string Word::getChinese() {     return chinese; } string Word::getWord_class() {     return word_class; } //定义字典类class Dictionary{public:    Dictionary();    void searchWord(string k);private:    int BinSeareh(int low, int high, string k);    int wordsNum;    Word words[8000]; //用于保存词库};Dictionary::Dictionary(){    string e,c,wc;    wordsNum=0;    //将文件中的数据读入到对象数组中    ifstream infile("dictionary.txt",ios::in);    if(!infile)    {        cerr<<"dictionary open error!"<<endl;        exit(1);    }    while(!infile.eof())    {        infile>>e>>c>>wc;        words[wordsNum].set(e,c,wc);        ++wordsNum;    }    infile.close();}int Dictionary::BinSeareh(int low,int high,string key){    int mid;    while(high>=low)    {        mid=(high+low)/2;        if(words[mid].compare(key)==0)            return mid;    }    if(words[mid].compare(key)>0)    {        high=mid-1;    }    else        low=mid+1;    return -1;}void Dictionary::searchWord(string key){    int low=0,high=wordsNum-1;    int index=BinSeareh(low,high,key);    if(index>=0)            cout<<key<<"--->"<<words[index].getWord_class()+"\t"<<words[index].getChinese();    else        cout<<"查无此词";    cout<<endl<<endl;}int main( ){    Dictionary dict;   string key;    do    {        cout<<"请输入待查询的关键词（英文）,0000结束："<<endl;        cin>>key;       if (key!="0000")       {           dict.searchWord(key);       }    }    cout<<"欢迎再次使用"<<endl;    return 0;}
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