C语言写一个员工管理系统

好的，以下是一个简单的C语言员工管理系统的示例代码：

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

#define MAX_EMPLOYEES 100  // 员工数量上限

struct Employee {
    int id;  // 员工编号
    char name[50];  // 员工姓名
    int age;  // 员工年龄
    float salary;  // 员工薪资
};

struct Employee employees[MAX_EMPLOYEES];  // 员工数组
int num_employees = 0;  // 当前员工数量

// 添加员工
void add_employee() {
    if (num_employees >= MAX_EMPLOYEES) {
        printf("员工数量已达上限！\n");
        return;
    }
    
    struct Employee new_employee;
    
    printf("请输入员工编号：");
    scanf("%d", &new_employee.id);
    
    printf("请输入员工姓名：");
    scanf("%s", new_employee.name);
    
    printf("请输入员工年龄：");
    scanf("%d", &new_employee.age);
    
    printf("请输入员工薪资：");
    scanf("%f", &new_employee.salary);
    
    employees[num_employees] = new_employee;
    num_employees++;
    
    printf("成功添加员工！\n");
}

// 显示所有员工
void list_employees() {
    if (num_employees == 0) {
        printf("当前无员工！\n");
        return;
    }
    
    printf("编号\t姓名\t年龄\t薪资\n");
    for (int i = 0; i < num_employees; i++) {
        struct Employee employee = employees[i];
        printf("%d\t%s\t%d\t%.2f\n", employee.id, employee.name, employee.age, employee.salary);
    }
}

// 查找员工
void find_employee() {
    int id;
    printf("请输入要查找的员工编号：");
    scanf("%d", &id);
    
    for (int i = 0; i < num_employees; i++) {
        struct Employee employee = employees[i];
        if (employee.id == id) {
            printf("编号\t姓名\t年龄\t薪资\n");
            printf("%d\t%s\t%d\t%.2f\n", employee.id, employee.name, employee.age, employee.salary);
            return;
        }
    }
    
    printf("找不到该员工！\n");
}

// 删除员工
void delete_employee() {
    int id;
    printf("请输入要删除的员工编号：");
    scanf("%d", &id);
    
    for (int i = 0; i < num_employees; i++) {
        struct Employee employee = employees[i];
        if (employee.id == id) {
            for (int j = i; j < num_employees - 1; j++) {
                employees[j] = employees[j+1];
            }
            num_employees--;
            printf("成功删除员工！\n");
            return;
        }
    }
    
    printf("找不到该员工！\n");
}

// 主函数
int main() {
    while (1) {
        printf("请输入数字选择要进行的操作：\n");
        printf("1. 添加员工\n");
        printf("2. 显示所有员工\n");
        printf("3. 查找员工\n");
        printf("4