若STUDENT student1,student2;(student1,student2为结构体变量)为正确定义,那么在此之前应做()定义。 (A)
若STUDENT student1,student2;(student1,student2为结构体变量)为正确定义,那么在此之前应做( )定义。
(A)struct
{char name[20];
int num;
}STUDENT;
(B)struct STUDENT
{char name[20];
int num;
};
(C)typedef struct
{char name[20];
int num;
}STUDENT;
(D)typedef struct STUDENT
{char name[20];
int num;
};