using System;
using System.Collections;
public class ContrainteParametre
{
public static void Main()
{
X obj=new X();
}
}
public class Z
{
public void MethodA()
{
Console.WriteLine("Y::MethodA");
}
}
public class Y: Z
{
}
public class X where T1:T2
{
public void MethodB(T1 arg)
{
}
}