泛型类引用有参数的构造函数方法

代码一： 

C# code

//抽象public abstract class a{    public a(string name) { }    public abstract void run();}//抽象继承public class aa : a{    private string _name;    public aa(string name) : base(name) { _name = name; }    public override void run() { HttpContext.Current.Response.Write(_name); }}//泛型应用protected a testA<T>() where T : a{    return (T)Activator.CreateInstance(typeof(T), "newName");}

代码二： 
C# code
//抽象public abstract class b{    public abstract void load(string name);    public abstract void run();}//抽象继承public class bb : b{    private string _name;    public override void load(string name) { _name = name; }    public override void run() { HttpContext.Current.Response.Write(_name); }}//泛型应用protected b testB<T>() where T : b,new(){    T t = new T(); t.load("loadName");    return t;}