提示3:这样的项目,最好用多文件的形式组织。
源码:
/*
* Copyright (c) 2015,烟台大学计算机学院
* All right reserved.
* 作者:邵帅
* 文件:demo.cpp
* 完成时间:2015年06月21日
* 版本号:v1.0
*/
#include <iostream>
#include <string>
#include <fstream>
#include<cstdlib>
using namespace std;
class Word
{
private:
string english;
string chinese;
string word_class;
public:
void set(string e,string c,string wc);
string get_english(){return english;}
string get_chinese(){return chinese;}
string get_word_class(){return word_class;}
};
void Word::set(string e,string c,string wc)
{
english=e;chinese=c;word_class=wc;
}
class Dictionary
{
public:
Dictionary();
int binary_search(string key);
int wordsNum;
Word words[8000];
void display(int tem);
};
void Dictionary::display(int tem)
{
cout<<words[tem].get_chinese()<<words[tem].get_word_class()<<endl;
}
Dictionary::Dictionary()
{
string e,c,wc;
wordsNum=0;
ifstream infile("dictionary.txt",ios::in);
if (!infile)
{
cout<<"打开文件失败!";
exit(1);
}
while (!infile.eof())
{
infile>>e>>c>>wc;
words[wordsNum].set(e,c,wc);
wordsNum++;
}
infile.close();
}
int Dictionary::binary_search(string key)
{
int i=-1;
int low=0,high=wordsNum-1,mid;
while (low<=high)
{
mid=(low+high)/2;
if (words[mid].get_english()==key)
{
return mid;
}
else if (words[mid].get_english()>key)
high=mid-1;
else
low=mid+1;
}
return i;
}
int main()
{
Dictionary dic;
string key;
int tem;
cout<<"欢迎使用本词典 (0000)退出"<<endl;
while (1)
{
cin>>key;
if(key=="0000")
break;
tem=dic.binary_search(key);
if (tem==-1)
{
cout<<"没有这个词条"<<endl;
continue;
}
else
dic.display(tem);
}
}
@ Mayuko
原文:http://blog.csdn.net/mayuko2012/article/details/46581021