一委托：此示例演示如何将方法与委托关联然后通过委托调用该方法。
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创建委托和匹配过程
创建一个名为 MySubDelegate 的委托。
Delegate Sub MySubDelegate(ByVal x As Integer)
声明一个类，该类包含与该委托具有相同签名的方法。
Class class1
Sub Sub1(ByVal x As Integer)
MsgBox("The value of x is: " CStr(x))
End Sub
End Class
定义一个方法，该方法创建该委托的实例并通过调用内置的 Invoke 方法调用与该委托关联的方法。
Protected Sub DelegateTest()
Dim c1 As New class1
' Create an instance of the delegate.
Dim msd As MySubDelegate = AddressOf c1.Sub1
' Call the method.
msd.Invoke(10)
End Sub
二、事件
下面的示例程序阐释如何在一个类中引发一个事件，然后在另一个类中处理该事件。AlarmClock 类定义公共事件 Alarm，并提供引发该事件的方法。AlarmEventArgs 类派生自 EventArgs，并定义 Alarm 事件特定的数据。WakeMeUp 类定义处理 Alarm 事件的 AlarmRang 方法。AlarmDriver 类一起使用类，将使用 WakeMeUp 的 AlarmRang 方法设置为处理 AlarmClock 的 Alarm 事件。
该示例程序使用事件和委托和引发事件中详细说明的概念。
示例
' EventSample.vb.
'
Option Explicit
Option Strict
Imports System
Imports System.ComponentModel
Imports Microsoft.VisualBasic
Namespace EventSample
' Class that contains the data for
' the alarm event. Derives from System.EventArgs.
'
Public Class AlarmEventArgs
Inherits EventArgs
Private _snoozePressed As Boolean
Private nrings As Integer
'Constructor.
'
Public Sub New(snoozePressed As Boolean, nrings As Integer)
Me._snoozePressed = snoozePressed
Me.nrings = nrings
End Sub
' The NumRings property returns the number of rings
' that the alarm clock has sounded when the alarm event
' is generated.
'
Public ReadOnly Property NumRings() As Integer
Get
Return nrings
End Get
End Property
' The SnoozePressed property indicates whether the snooze
' button is pressed on the alarm when the alarm event is generated.
'
Public ReadOnly Property SnoozePressed() As Boolean
Get
Return _snoozePressed
End Get
End Property
' The AlarmText property that contains the wake-up message.
'
Public ReadOnly Property AlarmText() As String
Get
If _snoozePressed Then
Return "Wake Up!!! Snooze time is over."
Else
Return "Wake Up!"
End If
End Get
End Property
End Class
' Delegate declaration.
'
Public Delegate Sub AlarmEventHandler(sender As Object, _
e As AlarmEventArgs)
' The Alarm class that raises the alarm event.
'
Public Class AlarmClock
Private _snoozePressed As Boolean = False
Private nrings As Integer = 0
Private stopFlag As Boolean = False
' The Stop property indicates whether the
' alarm should be turned off.
'
Public Property [Stop]() As Boolean
Get
Return stopFlag
End Get
Set
stopFlag = value
End Set
End Property
' The SnoozePressed property indicates whether the snooze
' button is pressed on the alarm when the alarm event is generated.
'
Public Property SnoozePressed() As Boolean
Get
Return _snoozePressed
End Get
Set
_snoozePressed = value
End Set
End Property
' The event member that is of type AlarmEventHandler.
'
Public Event Alarm As AlarmEventHandler
' The protected OnAlarm method raises the event by invoking
' the delegates. The sender is always this, the current instance
' of the class.
'
Protected Overridable Sub OnAlarm(e As AlarmEventArgs)
RaiseEvent Alarm(Me, e)
End Sub
' This alarm clock does not have
' a user interface.
' To simulate the alarm mechanism it has a loop
' that raises the alarm event at every iteration
' with a time delay of 300 milliseconds,
' if snooze is not pressed. If snooze is pressed,
' the time delay is 1000 milliseconds.
'
Public Sub Start()
Do
nrings += 1
If stopFlag Then
Exit Do
Else
If _snoozePressed Then
System.Threading.Thread.Sleep(1000)
If (True) Then
Dim e As New AlarmEventArgs(_snoozePressed, nrings)
OnAlarm(e)
End If
Else
System.Threading.Thread.Sleep(300)
Dim e As New AlarmEventArgs(_snoozePressed, nrings)
OnAlarm(e)
End If
End If
Loop
End Sub
End Class
' The WakeMeUp class has a method AlarmRang that handles the
' alarm event.
'
Public Class WakeMeUp
Public Sub AlarmRang(sender As Object, e As AlarmEventArgs)
Console.WriteLine((e.AlarmText + ControlChars.Cr))
If Not e.SnoozePressed Then
If e.NumRings Mod 10 = 0 Then
Console.WriteLine(" Let alarm ring? Enter Y")
Console.WriteLine(" Press Snooze? Enter N")
Console.WriteLine(" Stop Alarm? Enter Q")
Dim input As String = Console.ReadLine()
If input.Equals("Y") Or input.Equals("y") Then
Return
Else
If input.Equals("N") Or input.Equals("n") Then
CType(sender, AlarmClock).SnoozePressed = True
Return
Else
CType(sender, AlarmClock).Stop = True
Return
End If
End If
End If
Else
Console.WriteLine(" Let alarm ring? Enter Y")
Console.WriteLine(" Stop Alarm? Enter Q")
Dim input As String = Console.ReadLine()
If input.Equals("Y") Or input.Equals("y") Then
Return
Else
CType(sender, AlarmClock).Stop = True
Return
End If
End If
End Sub
End Class
' The driver class that hooks up the event handling method of
' WakeMeUp to the alarm event of an Alarm object using a delegate.
' In a forms-based application, the driver class is the
' form.
'
Public Class AlarmDriver
Public Shared Sub Main()
' Instantiates the event receiver.
Dim w As New WakeMeUp()
' Instantiates the event source.
Dim clock As New AlarmClock()
' Wires the AlarmRang method to the Alarm event.
AddHandler clock.Alarm, AddressOf w.AlarmRang
clock.Start()
End Sub
End Class
End Namespace
比较长 不过支持全部的关键字 直接就可以用了 using System;using System Text;using System Text RegularExpressions;
namespace Com OSLeague Component{/// summary/// 语法分析器 将所有Code根据语法进行变色/// list type= VB 支持VB NET/list/// list type= CS 支持CS/list/// author掉掉/author/// date 年 月 日/date/// Memo/// 练习正则表达式/// /Memo/// /summarypublic class CodeAnalysis{
////定义HTML开始和结束的语句 用于语法变色//
const string TAG_FNTRED = @ font color= red ;const string TAG_FNTBLUE = @ font color= blue ;const string TAG_FNTGRN = @ font color= green ;const string TAG_FNTMRN = @ font color= maroon ;const string TAG_FNTBLACK = @ font color= black ;const string TAG_EFONT = @ /font ;const string TAG_SPNYELLOW = @ span style= background color: yellow; ;const string TAG_ESPAN = @ /span ;const string TAG_B = @ b ;const string TAG_EB = @ /b ;const string TAG_MENT = @ font colr=# ;const string TAG_EMENT = @ /font ;
//
public CodeAnalysis(){//// TODO: 在此处添加构造函数逻辑//}
/// summary/// 处理VB NET代码 彩色化 /// /summary/// param name= Code 传入的Code/param/// returns处理过后的代码/returnspublic string ParseVB(string Code){////定义VB NET中关键字 将其存为数组//
string[] VB_Keyword = new string[]{ AddHandler AddressOf AndAlso Alias And Ansi As Assembly Auto Boolean ByRef Byte ByVal Call Case Catch CBool CByte CChar CDate CDec CDbl Char CInt Class CLng CObj Const CShort CSng CStr CType Date Decimal Declare Default Delegate Dim DirectCast Do Double Each Else ElseIf End Enum Erase Error Event Exit False Finally For Friend Function Get GetType GoTo Handles If Implements Imports In Inherits Integer Interface Is Let Lib Like Long Loop Me Mod Module MustInherit MustOverride MyBase MyClass Namespace New Next Not Nothing NotInheritable NotOverridable Object On Option Optional Or OrElse Overloads Overridable Overrides ParamArray Preserve Private Property Protected Public RaiseEvent ReadOnly ReDim RemoveHandler Resume Return Select Set Shadows Shared Short Single Static Step Stop String Structure Sub SyncLock Then Throw To True Try TypeOf Unicode Until Variant When While With WithEvents WriteOnly Xor };
////设定转换代码颜色//
lishixinzhi/Article/program/net/201311/14615
泛型参数，表示一种特定类型，通常用于集合List, Dictionary之类的。
原型：Dictionary(Of TKey, TValue)
原型不能直接使用，必须给TKey, TValue指定一个类型(Type)
强类型字典：Dictionary(Of String, String)
表示键和值都为String类型的字典。