//by www.datahf.net zhangyu#include "stdio.h" typedef struct A {     char c;     int d;     short e;  }; typedef struct B {     char c;     __int64 d;     int e;     short f;     A g;     char h;     int i; }; typedef struct C {     char c;     __int64 d;     int e;     short f;     char g;     short h; }; typedef struct D {     char a;     short b;     char c; }; int main() {      B *b=new B;     void *s[32];     s[0]=b;     s[1]=&b->c;     s[2]=&b->d;     s[3]=&b->e;     s[4]=&b->f;     s[5]=&b->g;     s[6]=&b->h;     s[7]=&b->g.c;     s[8]=&b->g.d;     s[9]=&b->g.e;     s[10]=&b->i;     b->c= 0x11;     b->d= 0x2222222222222222;     b->e= 0x33333333;     b->f=0x4444;     b->g.c=0x50;     b->g.d=0x51515151;     b->g.e=0x5252;     b->h=0x66;     int i1=sizeof(A);     int i2=sizeof(B);     int i3=sizeof(C);     int i4=sizeof(D);     printf("i1:%d\ni2:%d\ni3:%d\ni4:%d\n",i1,i2,i3,i4);//12 48 32 6 }