指向“指针”的“指针”

下面主要以整形数据为例

1 指向整型的指针

#include <iostream>
#include <iostream>
using namespace std;

int main()
{
    int a = 5;
    int * p = &a;

    cout << "变量的取值===>a  = " << a << endl
        << "变量的地址===>&a = " << &a << endl
        << "指向变量的指针加*===>*p = " << *p << endl
        << "指向变量的指针名===>p  = " << p << endl
        << "指向变量的指针的地址&p = " << &p << endl;

    system("pause");
    return 0;
}

运行结果：

内存图示

2 指向整形指针的指针

1 #include <iostream>
using namespace std;

int main()
{
    int a[5] = {1, 2, 3, 4, 5};
    int *p = a;
    int **point = &p;

    cout << "a = " << a << endl
        << "p = " << p << endl
        << "&p = " << &p << endl
        << "point = " << point << endl
        << "&point = " << &point << endl;

    for (int i = 0; i < 5; i++)
    {
        cout << "&a[" << i << "] = " << &a[i] << endl;
    }
    return 0;
}

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参考
http://www.cnblogs.com/dzry/archive/2011/05/12/2044835.html