C + + pointer one question

Output the following code result:

 #include <iostream>using  namespace   Std;  class   A { int   I ; public  :  void  Hello () {cout <<   " << Endl;};  int      main () {A  *p =->hello ();  return  0  ;}  

Results:

Hello

Analysis

You need to understand the C + + 's this pointer. Translate the above C + + code into the C program as follows:

#include <stdio.h>struct  A {    int  i;}; void Hello (struct A *sp) {    printf ("hello\n");} int Main () {    struct  axa = NULL;    Hello (a);     return 0 ;}

In fact, the pointer p in C + + is just a pointer that is not used.

C + + pointer one question