编辑“︁C 语言结构体初始化”︁（章节）

== 实际应用案例 ==
考虑一个学生成绩管理系统，使用结构体存储学生信息：

<syntaxhighlight lang="c">
#include <stdio.h>
#include <string.h>

#define MAX_STUDENTS 50

struct Student {
    int id;
    char name[50];
    float scores[5]; // 5门课程成绩
    float average;
};

void calculateAverage(struct Student *s) {
    float sum = 0;
    for(int i = 0; i < 5; i++) {
        sum += s->scores[i];
    }
    s->average = sum / 5;
}

int main() {
    struct Student class[MAX_STUDENTS] = {
        {1001, "Alice", {85, 90, 78, 92, 88}},
        {1002, "Bob", {76, 82, 90, 85, 79}},
        {1003, "Charlie", {92, 88, 76, 95, 83}}
    };
    
    // 计算平均分
    for(int i = 0; i < 3; i++) {
        calculateAverage(&class[i]);
    }
    
    // 打印学生信息
    for(int i = 0; i < 3; i++) {
        printf("ID: %d\nName: %s\nScores: ", class[i].id, class[i].name);
        for(int j = 0; j < 5; j++) {
            printf("%.1f ", class[i].scores[j]);
        }
        printf("\nAverage: %.2f\n\n", class[i].average);
    }
    
    return 0;
}
</syntaxhighlight>

'''输出:'''
<pre>
ID: 1001
Name: Alice
Scores: 85.0 90.0 78.0 92.0 88.0 
Average: 86.60

ID: 1002
Name: Bob
Scores: 76.0 82.0 90.0 85.0 79.0 
Average: 82.40

ID: 1003
Name: Charlie
Scores: 92.0 88.0 76.0 95.0 83.0 
Average: 86.80
</pre>