#include<stdio.h>
int main()
{
    struct Data
    {
        int year;
        int month;
        int day;
    };
    struct stu{
        char stunum[10];
        struct Data stubirthday;
        float h;
        float w;
    }one;
   
    printf("%d\t",sizeof(one));//32
    //////////////
    struct stu2
    {
                char s[15];
                float score[4];
    }team;
    printf("%d\n",sizeof(team));//32
//////////////////////////
    struct str
    {
        float a,b;
        char c[6];
    };

    printf("%d\n",sizeof(struct str));//16
    return 0;
}


为什么会有如下警告？
E:\C语言编程\201107验证\sizeof.cpp(23) : warning C4101: 'team' : unreferenced local variable
E:\C语言编程\201107验证\sizeof.cpp(15) : warning C4101: 'one' : unreferenced local variable

我用VC6.0的