#include<stdio.h>
#include<stdlib.h>
#include<string.h>


typedef struct
{
    char a;
    int b;
    float c;
}struct_A_s;

typedef struct
{
    char a;
    int b;
    struct_A_s obj;
    float c;
}struct_B_s;


struct_B_s sObj =
{
    10,
    1000,
    .obj.a = 10,
    .obj.b = 1000,
    .obj.c = 0.1,
    9.99
};

int    main()
{
   struct_B_s *p = &sObj;

    printf("a=%d\n",p->a);
    printf("a=%d\n",p->b);
    printf("obj-a=%d\n",p->obj->a);//可不可这样子访问
    printf("obj-b=%d\n",p->obj->b);//可不可这样子访问
    printf("obj-c=%.2lf\n",p->obj->c);//可不可这样子访问
    return 0;
}