代码改变世界

C++ pointer

2024-03-18 12:07  @学无止境  阅读(1)  评论(0)  编辑  收藏  举报 
    int* pInt = new int;
    *pInt = 5;
    cout << "---------------" << endl;
    cout << "&(*pInt)-->" << &(*pInt) << endl;
    cout << "pInt-->" << pInt << endl;
    cout << "&pInt-->" << &pInt << endl;
    delete pInt;
    cout << "---------------" << endl;
    //cout << "*pInt-->" << *pInt << endl;
    cout << "pInt-->" << pInt << endl;
    cout << "&pInt-->" << &pInt << endl;
    pInt = nullptr;
    cout << "---------------" << endl;
    //cout << "*pInt-->" << *pInt << endl;
    cout << "pInt-->" << pInt << endl;
    cout << "&pInt-->" << &pInt << endl;

输出

---------------
&(*pInt)-->00947918
pInt-->00947918
&pInt-->0078FA4C
---------------
pInt-->00008123
&pInt-->0078FA4C
---------------
pInt-->00000000
&pInt-->0078FA4C