帮我用C#写一个学生信息管理系统

好的，以下是一个简单的学生信息管理系统的代码示例：

using System;
using System.Collections.Generic;

class Student
{
    public string Name { get; set; }
    public int Age { get; set; }
    public string Gender { get; set; }
    public string ID { get; set; }
    public float Score { get; set; }
}

class StudentManager
{
    private List<Student> students = new List<Student>();

    public void AddStudent(Student student)
    {
        students.Add(student);
    }

    public void RemoveStudent(string id)
    {
        students.RemoveAll(s => s.ID == id);
    }

    public Student GetStudent(string id)
    {
        return students.Find(s => s.ID == id);
    }

    public void PrintAllStudents()
    {
        Console.WriteLine("Name\tAge\tGender\tID\tScore");
        foreach (var student in students)
        {
            Console.WriteLine("{0}\t{1}\t{2}\t{3}\t{4}", student.Name, student.Age, student.Gender, student.ID, student.Score);
        }
    }
}

class Program
{
    static void Main(string[] args)
    {
        var manager = new StudentManager();
        while (true)
        {
            Console.WriteLine("1. Add student");
            Console.WriteLine("2. Remove student");
            Console.WriteLine("3. Get student");
            Console.WriteLine("4. Print all students");
            Console.WriteLine("5. Exit");
            Console.Write("Please enter your choice:");
            var choice = int.Parse(Console.ReadLine());
            switch (choice)
            {
                case 1:
                    Console.Write("Please enter name:");
                    var name = Console.ReadLine();
                    Console.Write("Please enter age:");
                    var age = int.Parse(Console.ReadLine());
                    Console.Write("Please enter gender:");
                    var gender = Console.ReadLine();
                    Console.Write("Please enter ID:");
                    var id = Console.ReadLine();
                    Console.Write("Please enter score:");
                    var score = float.Parse(Console.ReadLine());
                    var student = new Student { Name = name, Age = age, Gender = gender, ID = id, Score = score };
                    manager.AddStudent(student);
                    Console.WriteLine("Add student successfully!");
                    break;
                case 2:
                    Console.Write("Please enter ID:");
                    id = Console.ReadLine();
                    manager.RemoveStudent(id);
                    Console.WriteLine("Remove student successfully!");
                    break;
                case 3:
                    Console.Write("Please enter ID:");
                    id = Console.ReadLine();
                    student = manager.GetStudent(id);
                    if (student == null)
                    {
                        Console.WriteLine("Student not found!");
                    }
                    else
                    {
                        Console.WriteLine("Name\tAge\tGender\tID\tScore");
                        Console.WriteLine("{0}\t{1}\t{2}\t{3}\t{4}", student.Name, student.Age, student.Gender, student.ID, student.Score);
                    }
                    break;
                case 4:
                    manager.PrintAllStudents();
                    break;
                case 5:
                    return;
                default:
                    Console.WriteLine("Invalid choice!");
                    break;
            }
        }
    }
}

这个程序提供了以下操作：

1. 添加学生信息
2. 删除学生信息
3. 查找学生信息
4. 打印所有学生信息
5. 退出程序

你可以根据需要进行修改和扩展。