C++ 例题（不一样的运算符重载）

#include 
#include 

using namespace std;
template <class T>
class CMyistream_iterator
{

    public:
        T n;
        CMyistream_iterator(istream& in);
        T operator*(){ //注释1，对应下面* inputInt，对象在右边 类似 ++d 
            return n;
        }
        void operator++(int k);//后置 
};

template <class T>
CMyistream_iterator::CMyistream_iterator(istream& in)
{
    in >> n;
}

template <class T>
void CMyistream_iterator::operator++(int k)
{
    cin >> n;
}



int main()  
{ 
    int t;
    cin >> t;
    while( t -- ) {
         CMyistream_iterator<int> inputInt(cin);
         int n1,n2,n3;
         n1 = * inputInt; //读入 n1
         int tmp = * inputInt; 
         cout << tmp << endl;
         inputInt ++;   
         n2 = * inputInt; //读入 n2
         inputInt ++;
         n3 = * inputInt; //读入 n3
         cout << n1 << " " << n2<< " " << n3 << " ";
         CMyistream_iterator<string> inputStr(cin);
         string s1,s2;
         s1 = * inputStr;
         inputStr ++;
         s2 = * inputStr;
         cout << s1 << " " << s2 << endl;
    }
     return 0;  
}