以下示例,我如何引用基类实例?
public class A
{
public string test;
public A()
{
B b = new B();
test = "I am A class of test.";
}
public void hello()
{
MessageBox.Show("I am A class of hello.");
}
class B
{
public B()
{
//Here...
//How can I get A class of test and call A class of hello method
//base.test or base.hello() are not working.
}
}
}
答案 0 :(得分:1)
您必须将A的引用传递给B.
您可以这样做的一种方法如下:
public class A
{
string name = "Class A";
public A()
{
var b = new B(this);
}
class B
{
public B(A a)
{
a.name.Dump(); // Write out the property of a.name to some stream.
}
}
}
答案 1 :(得分:1)
要明确区分基类和嵌套类,请参阅下面的示例。
namespace Example
{
class A
{
string Name = "test"; // access restricted only to this class
public string Type; // global access
internal string Access; // within defining namespace
protected string Code; // this class and subclass
// When you create a nested class like C, you can create instances of C within this class(A).
C c = new C();
class C
{
string name;
public C()
{
//this is a nested class and you cannot call A as its base
name = "test success";
}
}
}
class B : A
{
public string Type { get { return base.Type; } set { base.Type = value; } } // You can use base when you hide a base class member
public B()
{
Type = "test";
Code = "nothing";
Access = "success";
//Cannot Access 'Name' Here as it is private
}
}
}