创建一个以结构(或指向结构的指针)作为参数的函数，并按字母顺序对名称进行排序

#include <stdio.h>
#include <string.h>

// 定义结构体
struct Person {
    char name[50];
    int age;
};

// 按字母顺序对名称进行排序的函数
void sortNames(struct Person* people, int numPeople) {
    int i, j;
    struct Person temp;

    for (i = 0; i < numPeople - 1; i++) {
        for (j = 0; j < numPeople - i - 1; j++) {
            if (strcmp(people[j].name, people[j + 1].name) > 0) {
                temp = people[j];
                people[j] = people[j + 1];
                people[j + 1] = temp;
            }
        }
    }
}

int main() {
    // 创建结构体数组
    struct Person people[5] = {
        {"John", 25},
        {"Alice", 30},
        {"Bob", 20},
        {"David", 35},
        {"Cindy", 28}
    };

    int numPeople = sizeof(people) / sizeof(people[0]);

    // 调用排序函数
    sortNames(people, numPeople);

    // 打印排序后的结果
    for (int i = 0; i < numPeople; i++) {
        printf("Name: %s, Age: %d\n", people[i].name, people[i].age);
    }

    return 0;
}

Name: Alice, Age: 30
Name: Bob, Age: 20
Name: Cindy, Age: 28
Name: David, Age: 35
Name: John, Age: 25