實現數組的模板類

Myarray1.h

#ifndef _ARRAY_ #define _ARRAY_#include <iostream> using namespace std;template <typename T> class Myarray1 { private:int m_len;T *m_data; public:Myarray1();~Myarray1();Myarray1(int l);Myarray1(const Myarray1 &a);friend ostream &operator <<(ostream &out, const Myarray1 &a){ for (int i = 0; i < a.m_len; i++){out << a.m_data << " ";}return out;}T &operator [](int index); };#endif

Myarray1.cpp

#include "Myarray1.h" template <typename T> Myarray1<T>::Myarray1() {m_len = 1;m_data = new T[m_len + 1];cout << "Myarray1() constuctor ok~" << endl; }template <typename T> Myarray1<T>::~Myarray1() {if (m_data != NULL)delete[] m_data;cout << "Myarray1() destuctor ok~" << endl; }template <typename T> Myarray1<T>::Myarray1(int l) {m_len = l;m_data = new T[m_len + 1];cout << "Myarray1(int l) constuctor ok~" << endl; }template <typename T> Myarray1<T>::Myarray1(const Myarray1<T> &a) {m_len = a.m_len;m_data = new T[m_len + 1];for (int i = 0; i < m_len; i++){m_data[i] = a.m_data[i];}cout << "Myarray1(const Myarray &a) constuctor ok~" << endl; }template <typename T> T &Myarray1<T>::operator [](int index) {return m_data[index]; }

main.cpp

#include <iostream> #include "Myarray1.cpp" using namespace std;int main() {Myarray1<int> ma1;Myarray1<double> ma2(5);cout << ma2 << endl;system("pause");return 0; }

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