类模板

#include <iostream>
using namespace std;
template<typename T>
class Array
{
public:
    Array(int s);
    virtual ~Array();
    virtual const T& Entry(int index)const;
    virtual void Enter(int index, const T& value);
protected:
    int size;
    T* element;
};
template<typename T>
Array<T>::Array(int s)
{
    if (s>1)
    {
        size = s;
    }
    else
    {
        size = 1;
    }
    element = new T[size];
}
template<typename T>
Array<T>::~Array()
{
    delete[] element;
}
template<typename T>
const T& Array<T>::Entry(int index) const
{
    return element[index];
}
template<typename T>
void Array<T>::Enter(int index, const T& value)
{
    element[index] = value;
}
int main()
{
    Array<int> IntAry(5);
    for (int i=0; i<5; i++)
    {
        IntAry.Enter(i, i);
    }
    cout << "Integer Array: \n";
    for (int i=0; i<5; i++ )
    {
        cout << IntAry.Entry(i) << '\t';
    }
    cout << endl;
    Array<double> DouAry(5);
    for (int i=0; i<5; i++)
    {
        DouAry.Enter(i, (i + 1)*0.35);
    }
    cout << "Double Array: \n";
    for (int i=0; i<5; i++)
    {
        cout << DouAry.Entry(i) << '\t';
    }
    cout << endl;
    return 0;
}

来自为知笔记(Wiz)