一个关于list容器的小程序

//1.1.5最简单的c++ 程序
//例1-5 一个关于list容器的小程序
#include <iostream>
#include <list>
using namespace std;
struct PERSON{
    int id,sex;
    double core;
    void clear()
    {
        id = 0;
        sex = 0;
        core = 0;
    }
};

int main()
{
    PERSON temp;
    list <PERSON> C1;  //声明一个list容器对象C1,容器中的元素是PERSON类型的对象
    int id_temp,sex_temp,size;
    double core_temp;
    C1.clear();        //清空容器
    int counter = 0;   //计数器
    cout<<"This is a simplest C++ Example!\n"<<endl;
    cout<<"任意键开始......";
    cin.get();
    while(counter<5)
    {
        cout<<"请输入ID：";
        cin>>id_temp;
        cout<<"请输入性别：";
        cin>>sex_temp;
        cout<<"请输入分数：";
        cin>>core_temp;
        temp.id = id_temp;
        temp.sex = sex_temp;
        temp.core = core_temp;
        C1.push_back(temp);
        memset(&temp,0,sizeof(PERSON));
        counter++;
    }
    cout<<"按<Enter>键继续......";
    cin.get();
    size = C1.size();
    cout<<endl;
    list<PERSON>::iterator Iter;
    for(Iter=C1.begin();Iter != C1.end();Iter++)
    {
        temp.clear();
        temp = *Iter;
        cout<<"ID:"<<temp.id<<",SEX:"<<temp.sex<<",Core:"<<temp.core<<endl;
    }
    cout<<"按任意键退出程序......"; //<<endl;
    cin.get();
    return 0;
}