指针-->(纯指针)

 1 #include <iostream>

 2 #include <stdio.h>

 3 #include <stdlib.h>

 4 #include <string.h>

 5 

 6 using namespace std;

 7 

 8 int main(){

 9     char p[20]="you are a student!";

10     int *a = (int *)p;

11     int **b = &a;

12     char *c;

13     c = p;

14     cout<<"*b->  "<<b<<endl;

15     cout<<"&a->  "<<&a<<endl;

16 

17     cout<<"a->   "<<a<<endl;

18     cout<<"p->   "<<&p<<endl;

19 

20     cout<<"**b-> "<<**b<<endl;

21     printf("%c\n",**b);

22     cout<<"*a->  "<<*a<<endl;

23     printf("%c\n",*a);

24 

25     cout<<"*b->  "<<*b<<endl;

26     cout<<"a->   "<<a<<endl;  

27 

28     c++;

29     cout<<"c->:" <<c<<endl;

30     printf("%x\n",c);

31     cout<<"p->:" <<&p[1]<<endl;

32     printf("%x\n",&p[1]);

33 

34 }