C语言结构体初始化的三种方法

直接上示例了

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

#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 ", 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; }</stdio.h>

 

运行结果：

 

如果想初始化结构体数组，可采用 {{ }, { }, { }} 方式，如

?

1 2 3 4 5 6 7 8 9 10 11 12 13

struct student_st stus[2] = {     {         .c = 'D',         .score = 94,         /*也可以只初始化部分成员*/     },     {         .c = 'D',         .score = 94,         .name = "Xxx"     }, };