求教 用C++编一个程序

[xiaoqiang1987]

用C++编一个程序
题目是这样的:
编一个程序能把名片上所有的信息都保存到一个文件上,并且能通过名片上的""公司名和"姓名"查找到文件中名片的所有的信息.
请各位大虾帮帮忙!先谢了!!!

[独孤过儿]

strcmp();
这是最简单，也是最懒的方法！

[xiaoqiang1987]

用strcmp()好象不行啊
它是从文件开头一个个比较
如果名字在中间那就没法比了

[独孤过儿]

晕倒，你不做一个名片的结构啊？这个结构肯定有字段吧！接下来不用我说了吧...

[xiaoqiang1987]

可还是不会编程序啊
我是刚学C++ 不会编程序

[sheenl]

这个可以从文件中读出名片并搜索. 名片只有公司名和人名信息

#include <iostream>
#include <fstream>
#include <iterator>
#include <list>
#include <string>
#include <algorithm>

using namespace std;

struct Card
{
    string CompanyName;
    string Name;
};

istream& operator >>(istream& in, Card& c)
{
    in>>c.CompanyName>>c.Name;
    return in;
}

ostream& operator <<(ostream& out, const Card& c)
{
    out<<c.CompanyName<<' '<<c.Name;
    return out;
}

class CardCmp
{
public:
    enum COMPTYPE {COMPANY, PERSON};
    CardCmp(const string& s, COMPTYPE type = COMPANY):
        strName(s),cmpType(type) {}
    bool operator ()(const Card& c)
    {
        return (cmpType == COMPANY)?
            (strName == c.CompanyName) : (strName == c.Name);
    }
private:
    string strName;
    COMPTYPE cmpType;
};


void card()
{
    list<Card> lstCard;
    list<Card>::iterator pos;

    fstream fs("card.txt");
    istream_iterator<Card> ifs_iter(fs);
    istream_iterator<Card> ifs_end;

    copy(ifs_iter, ifs_end, back_inserter(lstCard));

    for (pos = lstCard.begin(); pos != lstCard.end(); ++pos)
    {
        cout<<*pos<<endl;
    }

    string s;
    cout<<"Please inpu company name:\n";
    cin>>s;
    pos = find_if(lstCard.begin(), lstCard.end(), CardCmp(s));
    if (pos != lstCard.end())
    {
        cout<<"founded :"<<*pos<<endl;
    }
    else
    {
        cout<<"not found"<<endl;
    }

    cout<<"Please inpu company name:\n";
    cin>>s;
    pos = find_if(lstCard.begin(), lstCard.end(),
        CardCmp(s, CardCmp::PERSON));
    if (pos != lstCard.end())
    {
        cout<<"founded :"<<*pos<<endl;
    }
    else
    {
        cout<<"not found"<<endl;
    }

    fs.close();

}

[hai040]

这个要用到文件操作，字符串匹配，结构/类
怎么初学就写这个？