学步园

#include<stdio.h>
#include<string.h>
#include<malloc.h>
class addr
{
        public:
        addr()
        {
                b = (int*)malloc(sizeof(int)*100);

        }
        ~addr()
        {
                delete []b;
        }
                int a[100];
                int *b;
                int c[100];
};

int main()
{
        addr obj;
        printf("objaddr=%xd\n",&obj);
        printf("a[0]   =%xd\n",&obj.a[0]);

        printf("a[99]  =%xd\n",&obj.a[99]);
        printf("b      =%xd\n",&obj.b);
        printf("c[0]   =%xd\n",&obj.c[0]);
        printf("c[99]  =%xd\n",&obj.c[99]);

}

输出

objaddr=7d612690d
a[0]       =7d612690d
a[99]     =7d61281cd
b            =7d612820d
c[0]        =7d612828d
c[99]      =7d6129b4d

从输出可以看出，各个成员变量的地址是安装变量申明的顺序从小到大一次增长的。