C语言及程序设计进阶例程-12 结构体成员的引用

贺老师教学链接  C语言及程序设计进阶 本课讲解

结构体作函数参数

#include <stdio.h>
struct Student
{
    int num;
    char name[20];
    char sex;
    int age;
    double score;
    char addr[30];
};

void print(struct Student s)
{
    printf("%d %s %c\n", s.num, s.name, s.sex);
    //可再加……
    return;
}

int main()
{
    struct Student student1,student2;
    struct Student *p_stu;
    student1.num=10001;
    student2.age=120;
    p_stu=&student2;
    print(student1);
    print(*p_stu);
    return 0;
}

当结构体成员又是结构体……

#include <stdio.h>
struct Date
{
    int month;
    int day;
    int year;
};
struct Student
{
    int num;
    char name[20];
    char sex;
    struct Date birthday;
    float score;
} student1,student2= {10002,"Wang Li",'f',5,23,1982,89.5};

int main( )
{
    student1=student2;
    printf("%d\n", student1.num);
    printf("%s\n", student1.name);
    printf("%c\n", student1.sex);
    printf("%d/%d/%d\n", student1.birthday.month, student1.birthday.day, student1.birthday.year);
    printf("%.1f\n", student1.score);
    return 0;
}

结构体的成员是数组

#include <stdio.h>
#include <string.h>
struct Student
{
    int num;
    char name[10];
    double score[3];
};
void print(struct Student);
int main( )
{
    struct Student stu;
    stu.num=12345;
    strcpy(stu.name, "Li Fung");
    stu.score[0]=67.5;
    stu.score[1]=89;
    stu.score[2]=78.5;
    print(stu);
    printf("%d %s ", stu.num, stu.name);
    printf("%.1f %.1f %.1f\n", stu.score[0], stu.score[1], stu.score[2]);
    return 0;
}

void print(struct Student s)
{
    printf("%d %s ", s.num, s.name);
    printf("%.1f %.1f %.1f\n", s.score[0], s.score[1], s.score[2]);
}