#include<iostream>
using namespace std;
class Mystring
{
private:
    char *pt;
public:
    Mystring(){}
    Mystring(char *p )
    {
        pt = new char[strlen(p)+1];    //就在这里断点 纳闷/..
        int i;
        for (i = 0; i < strlen(p)+1; i++)
        {
            *(pt + i) = *(p + i);
        }
        *(pt + i) = *(p + i);
    }
    Mystring(Mystring &Object)
    {
        (*this) = Object;
    }
    Mystring& operator=(Mystring &Object)
    {
        pt = new char[strlen(Object.pt) + 1];
        int i;
        for (i = 0; i <= strlen(Object.pt); i++)
        {
            *(pt + i) = *(Object.pt + i);
        }
        *(pt + i) = *(Object.pt + i);
        return *this;
    }
    void Display()
    {
        cout << "pt = " << pt << endl;
    }


};
int main()
{
    Mystring Obj1, Obj2("I Love You");
    Obj1.Display();
    Obj2.Display();
   
    Mystring Obj3;
    Obj3 = Obj2;
    Obj3.Display();
    system("pause");
    return 0;

我添加了一个析构函数 测试的DOS窗口关闭的时候要响下声音.
好像不正常
~Mystring()
{
    if(pt!=NULL)
       delete [] pt;
}