#include
void main()
{
        double a;
        float b;
        unsigned char *p,*q;
        unsigned char m[sizeof(a)]={0};
        int i;
        a=6559.8;
        b=-659.8;
        p=(unsigned char *)(&a);
        q=(unsigned char *)(&b);


        for(i=0;i<sizeof(a);i++)
        {
                m[i]=*(p+i);
                //printf("%02X",*(p+i));
                printf("%X",m[i]);
        }
        printf("\n");


        for(i=0;i<sizeof(a);i++)
        {
                printf("%02X",*(p+i));
        }
        printf("\n");
        printf("%03d\n",sizeof(a));
        printf("\n");


        for(i=0;i<sizeof(b);i++)
        {
                printf("%02X",*(q+i));
        }
        printf("\n");

        printf("%03d\n",sizeof(b));
        printf("\n");
}