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Imports System.IOPublic Class Form1 'Create private varables Private addressDList As Dictionary(Of String, List(Of String)) Private lstAddress As List... 阅读全文
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Public Class Address Private addrNickName As String Private addrFullName As String Private addrEmail As String Public Sub New(ByVal nickName As Stri... 阅读全文
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Public Class Form1 Private Const NUM_SIDES = 6 Private roll As New Random() Private cash As Integer = 100 Private betAmount As Integer = 10 Privat... 阅读全文
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VB StringsString Length Comparing StringsStrings in VB.NET are compared using the String Compare method. The return value can be -1 (if the... 阅读全文
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RegionsVisual Studio IDE provides an easy way to collapse long tracts of program code into short sections for better viewing and easier scrolling.The ... 阅读全文
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StructuresSometimes you may need to define your own data type in your VB code -- structures allow you to create composite values. Primitive variables ... 阅读全文
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Inheritance - OverridesWhen a base class defines only the names of its methods or properties with the MustInherit modifier, the derived classes must p... 阅读全文
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VB.NET supports collections such as List and Dictionary, which are useful constructs when building applications that need to access a set of related i... 阅读全文
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VB ProceduresA VB.NET procedure (aka sub for subroutine) is defined using the Sub / End Sub keywords. The procedure is invoked by using its name as a ... 阅读全文
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VB ProceduresA VB.NET procedure (aka sub for subroutine) is defined using the Sub / End Sub keywords. The procedure is invoked by using its name as a ... 阅读全文
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VB FunctionsA VB.NET function is defined using the Function/ End Function keywords. The function is invoked by using it. As with subs the function nam... 阅读全文
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VB ClassesClasses are defined in VB.NET using a separate VB code file. The code file name is the same as the class name.In VB.NET the class attributes... 阅读全文
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VB ArraysArraysArray variables are defined in Visual Basic using the same notation as with simple variables but with parenthesis after the variable na... 阅读全文
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An operator is a code element that performs an operation on one or more code elements that hold values. The value elements include variables, constant... 阅读全文
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ProcedureScope VariablesThese are variables declared within a procedure. Other procedures may not interact with them, either to read their value or ch... 阅读全文
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Variable ScopeThe scope of a declared element determines where in a program the variable is visible to the code. This can refer to the namespace of th... 阅读全文
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The Date and DateTime data types are fundamentally the same thing. They share the same properties and methods. A Dateis a Visual Basic data type while... 阅读全文
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Data types in VB.NET and how variables are declared have changedsince its predecessor,version 6. VB.NET now supportsclass inheritance and can interope... 阅读全文