查找多条件结构数组的索引

#include <stdio.h>

struct Person {
    char name[20];
    int age;
    char gender;
};

int findIndex(struct Person arr[], int size, char gender, int age) {
    for (int i = 0; i < size; i++) {
        if (arr[i].gender == gender && arr[i].age == age) {
            return i;
        }
    }
    return -1;  // 如果没有找到符合条件的元素，返回-1表示未找到
}

int main() {
    struct Person people[] = {
        {"Alice", 25, 'F'},
        {"Bob", 30, 'M'},
        {"Charlie", 35, 'M'},
        {"Diana", 25, 'F'}
    };
    int size = sizeof(people) / sizeof(people[0]);

    char gender = 'F';
    int age = 25;
    int index = findIndex(people, size, gender, age);

    if (index != -1) {
        printf("找到了符合条件的元素，索引为：%d\n", index);
        printf("姓名：%s，年龄：%d，性别：%c\n", people[index].name, people[index].age, people[index].gender);
    } else {
        printf("未找到符合条件的元素。\n");
    }

    return 0;
}