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public class Program
{
static void Main(string[] args)
{
MyClass a = new MyClass();
a.a="A";
Console.WriteLine(a.a);
MyFunction(a);
Console.WriteLine(a.a);
Console.Read();
}
public static void MyFunction(MyClass a)
{
//MyClass b = new MyClass();
//b.a = "B";
//a = b;
a.a = "b";
Console.WriteLine(a.a);
}
}
public class MyClass
{
public string a = "";
}