定义一个包含5个教师成员的结构体数组，教师信息包括职工号、姓名和工资。要求从键盘输入所有教师的信息，并设计一个sort函数实现结构体数组按教师工资由少到多排序。要有input函数和output函数。头文件用<stdio.h>和<string.h>

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

#define MAX_TEACHERS 5

struct Teacher {
    int id;
    char name[20];
    float salary;
};

void input(struct Teacher *t);
void output(struct Teacher *t);
void sort(struct Teacher *t);

int main() {
    struct Teacher teachers[MAX_TEACHERS];
    for (int i = 0; i < MAX_TEACHERS; i++) {
        printf("请输入第 %d 个教师的信息：\n", i + 1);
        input(&teachers[i]);
    }
    sort(teachers);
    printf("按教师工资排序后的结果为：\n");
    for (int i = 0; i < MAX_TEACHERS; i++) {
        output(&teachers[i]);
    }
    return 0;
}

void input(struct Teacher *t) {
    printf("请输入教师职工号：");
    scanf("%d", &t->id);
    printf("请输入教师姓名：");
    scanf("%s", t->name);
    printf("请输入教师工资：");
    scanf("%f", &t->salary);
}

void output(struct Teacher *t) {
    printf("职工号：%d，姓名：%s，工资：%.2f\n", t->id, t->name, t->salary);
}

void sort(struct Teacher *t) {
    for (int i = 0; i < MAX_TEACHERS - 1; i++) {
        for (int j = i + 1; j < MAX_TEACHERS; j++) {
            if (t[i].salary > t[j].salary) {
                struct Teacher temp = t[i];
                t[i] = t[j];
                t[j] = temp;
            }
        }
    }
}