我们如何在C中使用嵌套结构呢？

#include <stdio.h>

// 定义一个嵌套结构
struct Date {
    int day;
    int month;
    int year;
};

struct Student {
    int id;
    char name[20];
    struct Date dob; // 在Student结构中嵌套Date结构
};

int main() {
    // 创建一个Student结构对象
    struct Student student1;

    // 给student1对象的成员赋值
    student1.id = 1;
    strcpy(student1.name, "John");
    student1.dob.day = 10;
    student1.dob.month = 5;
    student1.dob.year = 1995;

    // 打印student1对象的成员值
    printf("Student ID: %d\n", student1.id);
    printf("Student Name: %s\n", student1.name);
    printf("Date of Birth: %d-%d-%d\n", student1.dob.day, student1.dob.month, student1.dob.year);

    return 0;
}