13 声明Object

 

C#

 

MyObject obj = (MyObject)Session["Some Value"];

 

IMyObject iObj = obj

 

VB:

 

Dim bj As MyObject

 

Dim iObj As IMyObject

 

obj = Session("Some Value")

 

iObj = CType(obj, IMyObject)

 

 

 

 

 

14 数据类型转换

 

C#

 

int i = 3;

 

String s = i.ToString();

 

double d = Double.Parse(s);

 

VB:

 

Dim i As Integer

 

Dim s As String

 

Dim d As Double

 

 

 

i = 3

 

s = i.ToString()

 

d = CDbl(s)

 

 

 

 

 

15 类的声明和继承

 

C#:

 

using System;

 

 

 

namespace MySpace {

 

 

 

public class Foo : Bar {

 

 

 

int x;

 

 

 

public Foo() { x = 4; }

 

public void Add(int x) { this.x += x; }

 

public int GetNum() { return x; }

 

}

 

 

 

}

 

 

 

VB:

 

Imports System

 

 

 

Namespace MySpace

 

 

 

Public Class Foo : Inherits Bar

 

 

 

Dim x As Integer

 

 

 

Public Sub New()

 

MyBase.New()

 

x = 4

 

End Sub

 

 

 

Public Sub Add(x As Integer)

 

Me.x = Me.x + x

 

End Sub

 

 

 

Public Function GetNum() As Integer

 

Return x

 

End Function

 

 

 

End Class

 

 

 

End Namespace

 

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