C语言完美演绎9-13

/* 范例：9-13 */

#include <stdio.h>

union

{

char a;

char b;

int c;

int d;

}myUnion;

struct

{

char a;

char b;

int c;

int d;

}myStruct;

void main(void)

{

printf("size of myUnion=%d\n",sizeof(myUnion));

printf("size of myStruct=%d\n",sizeof(myStruct));

printf("address of myUnion ={%x\t%x\t%x\t%x}\n", \

&myUnion.a,&myUnion.b,&myUnion.c,&myUnion.d);

printf("address of myStruct={%x\t%x\t%x\t%x}\n", \

&myStruct.a,&myStruct.b,&myStruct.c,&myStruct.d);

getchar();

}

程序执行结果：

size of myUnion=4

size of myStruct=12

address of myUnion ={40d658 40d658 40d658 40d658}

address of myStruct ={40d65c 40d65d 40d660 40d664}