3.1.1 System.Object
Every type in .NET is an object, meaning that it must derive directly or indirectly form the Object class. The Object class exposes the public methods listed in table 3-1, which you can invoke on any given .NET object at runtime.
|
Methods |
Description |
|
Equals() |
比较两个类，确定它们是否一致 |
|
ReferenceEquals() |
比较两个类，确定它们是否引用了相同的类 |
|
GetHashCode() |
获取对象的哈希代码 |
|
GetType() |
获取对象的类型 |
|
ToString() |
将对象转换为字符 |
3.1.2 Major Namespaces
|
Namespace |
Description |
|
System |
See detail at MSDN |
|
System. IO |
|
|
System.Collections |
|
|
System.Threading |
|
|
System.Reflection |
|
|
System.Security |
|
|
System.Net |
|
|
System.Data |
|
|
System.Web.Services |
|
|
System.Web.UI |
|
|
System..Windows.Forms |
3.2 Core Features and Languages
Namespace
Interface
Encapsulation
Inheritance
Polymorphism?
Exception handling
3.2.1 Managed C++ Code
(……)
3.2.2 VB Code
3.2.3 C# Code
using Systemnamespace lang //define a namespace
{
interface ISteering //define interface
{
void TurnLeft()void TurnRight()
}abstract class vehicle : Isteering //define abstract class to implement interface.{ public void TurnLeft(){Console.WriteLine(“Left”);}public void TurnRight(){Console.WriteLine(“Right”);}public abstract void ApplyBrakes();} class Car:Vehicle //inherits a base class{ public override void ApplyBrakes() //override a methods{ Conslose.WriteLine(“Stop”); Throw new Exception(“stop false”);}}
}3.2.4 Common Intermediate Language Code
(…….)
3.3 Language Integration