vector.cpp

Vc.Net入门与提高源码

#pragma warning(disable:4786)
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std ;
//  ID 类用于小组记分，它保存了每一个选手的名字和积分
class ID
{
public:
    string Name;
    int Score;
    ID() : Name(""), Score(0) {}
    ID(string NewName, int NewScore) : Name(NewName), Score(NewScore) {}
};
// 在这个例子中只有名字和积分同时一样才认为两个ID是相同的。
bool operator==(const ID& x, const ID& y)
{
    return (x.Name == y.Name) && (x.Score == y.Score);
}
//按照积分排序
bool operator<(const ID& x, const ID& y)
{
    return x.Score < y.Score;
}
//定义一个ID向量的模板类。
typedef vector<ID> NAMEVECTOR;
int main()
{
    //声明一个可动态分配的ID向量
    NAMEVECTOR theVector;
    // 声明一个迭代器
    NAMEVECTOR::iterator theIterator;
    //初始化ID向量
    theVector.push_back(ID("Karen Palmer", 2));
    theVector.push_back(ID("Ada Campbell", 1));
    theVector.push_back(ID("John Woloschuk", 3));
    theVector.push_back(ID("Grady Leno", 2));
    cout << "Players and scores:" << endl;
//输出原来的选手名字及积分
    for (theIterator = theVector.begin(); theIterator != theVector.end();
         theIterator++)
        cout << theIterator->Score  << "     "
             << theIterator->Name << endl;
    cout << endl;
    // 调用sort算法排序
    sort(theVector.begin(), theVector.end());
    cout << "Players ranked by score:" << endl;
    for (theIterator = theVector.begin(); theIterator != theVector.end();
         theIterator++)
        cout << theIterator->Score  << "     "
             << theIterator->Name << endl;
}