Code
class First
{
public First()
{
System.Console.WriteLine("First class start!");
}
~First()
{
System.Console.WriteLine("First's destructor is called");
System.Console.ReadLine();
}
}
class Second : First
{
public Second()
{
System.Console.WriteLine("Second class start!");
}
~Second()
{
System.Console.WriteLine("Second's destructor is called");
}
}
class Third : Second
{
public Third()
{
System.Console.WriteLine("Third class start!");
}
~Third()
{
System.Console.WriteLine("Third's destructor is called");
}
}
class TestDestructors
{
static void Main()
{
Third t = new Third();
}
}
class First
{
public First()
{
System.Console.WriteLine("First class start!");
}
~First()
{
System.Console.WriteLine("First's destructor is called");
System.Console.ReadLine();
}
}
class Second : First
{
public Second()
{
System.Console.WriteLine("Second class start!");
}
~Second()
{
System.Console.WriteLine("Second's destructor is called");
}
}
class Third : Second
{
public Third()
{
System.Console.WriteLine("Third class start!");
}
~Third()
{
System.Console.WriteLine("Third's destructor is called");
}
}
class TestDestructors
{
static void Main()
{
Third t = new Third();
}
}
First class start!
Second class start!
Third class start!
Third's destructor is called
Second's destructor is called
First's destructor is called
析构函数的执行过程实际是执行了Finalize方法,具体的方法实际是:
protected overrid Finalize()
{
try
{
//implemention
}
Finally
{
base.Finalize();
}
}