C语言结构体初始化的三种方法

进击的代码 2024-10-13 10:55:59

示例

#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;}

运行结果

初始化数组

可采用 {{ }, { }, { }} 方式,如

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" },};

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