C/C++学习笔记：指向指针的指针

# include "stdio.h"
int main( )
{
    int * * P1;//指向指针的指针
    int * p2;
    int a=318;
    p2=&a;
    printf("*p2=%d/n",*p2);
    P1=&p2;
    printf("* P1=%d/n",* P1);
    printf("p2=%d/n",p2);
    printf("* * P1=%d/n",* * P1);
   
    getch();
}