Use. Net generic to implement tuple

Although the DOTNET model has very weak functions, it is good to implement tuple, because DOTNET makes different types for reference of different models of classes with the same name. therefore, tuple <t1> and tuple <t1, T2> are different classes. with this rule, you can easily implement a tuple (C ++ template is complicated)

Public class tuple <t1>
{
T1 _ T1;
Public tuple (T1 T1)
{
This. _ T1 = T1;
}
Public T1 item_1
{
Get {return this. _ T1 ;}
}
};
Public class tuple <T1, T2>: tuple <t1>
{
T2 _ T2;
Public tuple (T1 T1, T2 T2): Base (T1)
{
This. _ t2 = t2;
}
Public T2 item_2
{
Get {return this. _ T2 ;}
}
};
Public class tuple <T1, T2, T3>: tuple <T1, T2>
{
T3 _ T3;
Public tuple (T1 T1, T2 T2, T3 T3): Base (T1, T2)
{
This. _ T3 = T3;
}
Public T3 item_3
{
Get {return this. _ T3 ;}
}
};