输入代码:
/* * Copyright (c) 2014, 烟台大学计算机学院 * All rights reserved. * 文件名:sum123.cpp * 作 者:林海云 * 完毕日期:2015年8月19日 * 版 本 号:v2.0 * * 问题描写叙述:做一个简单的电子词典。 在文件dictionary.txt中。保存的是英汉对比的一个词典,词汇量近8000个,英文、中文释义与词性间用’\t’隔开。 * 输入描写叙述:文本输入; * 程序输出:输出翻译的单词中文意思。词性。中文: */ #include<fstream> #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 ); 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]; }; Dictionary::Dictionary() { string e,c,wc; wordsNum=0; ifstream infile("dictionary.txt",ios::in); if(!infile) { cerr<<"dictionary open error!"<<endl; abort(); } while(!infile.eof()) { infile>>e>>c>>wc; words[wordsNum].set(e, c, wc); ++wordsNum; } infile.close(); } 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!"<<endl; cout<<endl; } int Dictionary::BinSeareh(int low, int high, string key) { int mid; while(low<=high) { mid=(low+high)/2; if(words[mid].compare(key)==0) { return mid; } if(words[mid].compare(key)>0) high=mid-1; else low=mid+1; } return -1; } int main() { Dictionary dic; 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") { dic.searchWord(key); } } while(key!="0000"); return 0; }
执行结果:
dictionary.txt
时间: 2024-11-25 05:11:06