模板类MyArry

#include <iostream>using namespace std;template<typename T>class MyArray{    int min_index;    int max_index;    T *data;public:    MyArray(int mi,int ma)    {        min_index=mi;        max_index=ma;        data=new T[max_index-min_index+1];    }    MyArray(int ma)    {        min_index=0;        max_index=ma;        data=new T[1+max_index];    }    ~MyArray()    {        delete [] data;    }    T & operator [](int index)const    {        return data[index-min_index];    }    int getMinIndex()const{return min_index;}    int getMaxIndex()const{return max_index;}};template<typename T>istream &operator >>(istream &is,MyArray<T> &a)    {        for(int i=a.getMinIndex();i<=a.getMaxIndex();i++)            is>>a[i];        return is;    }template<typename T>ostream &operator <<(ostream &os,const MyArray<T> &a)    {        for(int i=a.getMinIndex();i<=a.getMaxIndex();i++)            os<<a[i]<<' ';        return os;    }int main(){    MyArray<double>x(3,8);    cout<<"请输入"<<(x.getMaxIndex()-x.getMinIndex()+1)<<"个数据";    cin>>x;    cout<<"刚输入的数据是: ";    cout<<x<<endl;    return 0;}