C++作业day7

 

#include 
#include
using namespace std;
template 
class Myvector
{
private:
    T *first=nullptr;
    T *last=nullptr;
    T *end=nullptr;
public:
    T data;
    T size;
public:
    Myvector()
    {
        cout<<"无参构造"<=size||pos<0)
            cout<<"不存在"< a1(6,3);
    Myvector a2(a1);
    Myvector a3;
    a3=a1;
    a1.push_back(4);
    a1.pop_back();
    a1.front();
    //a1.at(2);
    a1.back();
    a1.full();
    a1.empty();
    a1.size_t();
    // a1.expand();
    a1.bianli();
    a1.clear();
    return 0;
}