define STUDENT Struct student 则在程序中可以直接写成: STUDENT fint num char name [20] char sex: int age; float score char addr[30; STUDENT St1, st2则在程序中可以直接写成: STUDENT {int num; char name[20]; char sex; int age; float score; char addr[30]; }; #define STUDENT struct student STUDENT st1, st2;