internal class Program
{
    private static void Main(string[] args)
    {
        var cls = new Class1();
        cls.Run();
        cls.Get();
        cls.Put();
    }
}

// 1. Partial Class - 3개로 분리한 경우
partial class Class1
{
    public void Run() { }
}

partial class Class1
{
    public void Get() { }
}

partial class Class1
{
    public void Put() { }
}

// 2. Partial Struct
partial struct Struct1
{
    public int ID;
}

partial struct Struct1
{
    public string Name;

    public Struct1(int id, string name)
    {
        this.ID = id;
        this.Name = name;
    }
}

// 3. Partial Interface
partial interface IDoable
{
    string Name { get; set; }
}

partial interface IDoable
{
    void Do();
}

// IDoable 인터페이스를 구현
public class DoClass : IDoable
{
    public string Name { get; set; }

    public void Do()
    {
    }
}