将结构打印到文件打印字符数组的所有空元素

typedef struct {
    char name[20];
    int age;
    char gender[10];
} Student;

#define MAX_STUDENTS 100
Student students[MAX_STUDENTS];

#include <stdio.h>

void printStructToFile() {
    FILE *file = fopen("output.txt", "w");
    if (file == NULL) {
        printf("Failed to open file.\n");
        return;
    }

    for (int i = 0; i < MAX_STUDENTS; i++) {
        if (students[i].name[0] != '\0') {
            fprintf(file, "Name: %s\n", students[i].name);
            fprintf(file, "Age: %d\n", students[i].age);
            fprintf(file, "Gender: %s\n", students[i].gender);
            fprintf(file, "\n");
        }
    }

    fclose(file);
}

int main() {
    // 假设已经将学生信息存储到students数组中

    printStructToFile();

    return 0;
}