结构体嵌套

#include <stdio.h>
struct STUDENT
{int studentID;char studentName[10];char studentSex[4];
};
typedef struct STUDENT Student; struct CLASS
{int classID;char className[10];Student student;
};
typedef struct CLASS Class; 
int main(){Student stu;stu.studentID=1;strcpy(stu.studentName,"xiaoming");strcpy(stu.studentSex,"男"); Class java;java.classID=1;strcpy(java.className,"单片机"); java.student=stu;printf("%d\n%s\n%s",java.student.studentID,java.student.studentName,java.student.studentSex);return 0; 
}