如何快速的复制父类的数据？
public class A
{
string data1 = "";

public string Data1
{
get { return data1; }
set { data1 = value; }
}

private int data2 = "";

public int Data2
{
get { return data2; }
set { data2 = value; }
}
}

public class B:A
{
public B(A a)
{
// 有没有办法在这里快速复制？
this.Data1 = a.Data1;
this.Data2 = a.Data2;
}

private string data3 = "";

public string Data3
{
get { return data3; }
set { data3 = value; }
}
}

[解决办法]
public class A
{
string data1 = "";
public A(A a){
data1=a.data1;
data2= a.data2;
}
public string Data1
{
get { return data1; }
set { data1 = value; }
}

private int data2 = "";

public int Data2
{
get { return data2; }
set { data2 = value; }
}
}

public class B:A
{
public B(A a) :base(a)
{
}

private string data3 = "";

public string Data3
{
get { return data3; }
set { data3 = value; }
}
}
[解决办法]
其实父类子类的，有些误导。这样说，

1、如果是实例的复制，拷贝是免不了的。
2、如果只是要用“父类”的数据，这不是继承，而要用包含。

C# code

public B{  A a;                   // B包含A  public B(A a)  {     this.a = a;  }}