ccircle.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 = "CCircle"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
' CCircle class definition
Option Explicit
Implements IShape2
Private mX As Integer
Private mY As Integer
Private mRadius As Double

Private Function IShape2_Volume() As Double
   IShape2_Volume = 0
End Function

Private Function IShape2_Area() As Double
   IShape2_Area = 3.14159 * mRadius ^ 2
End Function

Private Function IShape2_Name() As String
   IShape2_Name = "Circle"
End Function

Private Function IShape2_ToString() As String
   IShape2_ToString = "[" & mX & ", " & mY & "], " & _
                     "Radius: " & mRadius
End Function

Public Property Let X(ByVal xValue As Integer)
   mX = xValue
End Property

Public Property Get X() As Integer
   X = mX
End Property

Public Property Let Y(ByVal yValue As Integer)
   mY = yValue
End Property

Public Property Get Y() As Integer
   Y = mY
End Property

Public Property Let Radius(ByVal radiusValue As Double)
   mRadius = radiusValue
End Property

Public Property Get Radius() As Double
   Radius = mRadius
End Property