用C#写上面那段代码

好的，以下是C#版本的代码：

using System;

public class Person {
    public string name;
    public string id;
    public int age;
    public char gender;
}

public class Student : Person {
    public string major;
}

public class Teacher : Person {
    public string title;
}

class Program {
    static void Main(string[] args) {
        Student[] students = new Student[3];
        Teacher teacher = new Teacher();

        // 创建学生信息库
        for (int i = 0; i < 3; i++) {
            Console.Write($"请输入第{i+1}名学生的姓名：");
            students[i] = new Student();
            students[i].name = Console.ReadLine();
            Console.Write($"请输入第{i+1}名学生的学号：");
            students[i].id = Console.ReadLine();
            Console.Write($"请输入第{i+1}名学生的年龄：");
            students[i].age = int.Parse(Console.ReadLine());
            Console.Write($"请输入第{i+1}名学生的性别(m/f)：");
            students[i].gender = char.Parse(Console.ReadLine());
            Console.Write($"请输入第{i+1}名学生的专业：");
            students[i].major = Console.ReadLine();
        }

        // 创建教师信息
        Console.Write("请输入教师的姓名：");
        teacher.name = Console.ReadLine();
        Console.Write("请输入教师的工号：");
        teacher.id = Console.ReadLine();
        Console.Write("请输入教师的年龄：");
        teacher.age = int.Parse(Console.ReadLine());
        Console.Write("请输入教师的性别(m/f)：");
        teacher.gender = char.Parse(Console.ReadLine());
        Console.Write("请输入教师的职称：");
        teacher.title = Console.ReadLine();

        // 输出学生信息
        Console.WriteLine("\n学生信息：");
        foreach (Student student in students) {
            Console.WriteLine($"姓名：{student.name}");
            Console.WriteLine($"学号：{student.id}");
            Console.WriteLine($"年龄：{student.age}");
            Console.WriteLine($"性别：{student.gender}");
            Console.WriteLine($"专业：{student.major}");
        }

        // 输出教师信息
        Console.WriteLine("\n教师信息：");
        Console.WriteLine($"姓名：{teacher.name}");
        Console.WriteLine($"工号：{teacher.id}");
        Console.WriteLine($"年龄：{teacher.age}");
        Console.WriteLine($"性别：{teacher.gender}");
        Console.WriteLine($"职称：{teacher.title}");
    }
}

输出结果与C版本一致，就不再重复了。