cqueue.cls

Visual Basic 6 大学教程的代码

VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "CQueue"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
' Fig. 21.11
' Class CQueue
Option Explicit
Private list As New CList

Public Sub Enqueue(value As Variant)
   list.InsertAtBack (value)
End Sub

Public Function Dequeue() As Variant
   Dequeue = list.RemoveFromFront()
End Function

Public Function IsQueueEmpty() As Boolean
   IsQueueEmpty = list.IsEmpty()
End Function

Public Property Get Iterator() As Variant
   Set Iterator = list.Iterator
End Property