结构体的三种初始化方法

转载：https://blog.csdn.net/a_ran/article/details/44755759 

结构体的三种初始化方式

#include <stdio.h>

struct student_st

{

       char c;

       int score;

       const char *name;

};

 

static void show_student(struct student_st *stu)

{

       printf("c = %c, score = %d, name = %s\n", stu->c, stu->score, stu->name);

}

 

int main(void)

{

       // method 1: 按照成员声明的顺序初始化

       struct student_st s1 = {'A', 91, "Alan"};

       show_student(&s1);

 

       // method 2: 指定初始化，成员顺序可以不定，Linux 内核多采用此方式

       struct student_st s2 =

       {

              .name = "YunYun",

              .c = 'B',

              .score = 92,

       };

       show_student(&s2);

 

       // method 3: 指定初始化，成员顺序可以不定

       struct student_st s3 =

       {

              c: 'C',

              score: 93,

              name: "Wood",

       };

       show_student(&s3);

        return 0;

}