vb的回調(diào)函數(shù)轉(zhuǎn)為vb.NET

先聲明一個委托：

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Public Delegate Function EnumChildProc(hwnd As Integer, iParam As Integer) As Integer

然后才能使用回調(diào)函數(shù)，回調(diào)函數(shù)的參數(shù)要和委托完全一致。

然后那個 API 函數(shù)需要這樣聲明：

Declare Function EnumChildWindows Lib "user32" (hWndParent As Integer, lpEnumFunc As EnumChildProc, lParam As Integer) As Integer

下面的VB6.0編寫的代碼怎么轉(zhuǎn)為VB.net

Dim?file1?As?FileStream

filename?=?"c:\temp\MyTest.txt"

Dim?GetData(4)?As?Byte,?s(4)?As?Char

file1?=?System.IO.File.OpenRead(filename)

Dim?CMGs?As?Long

Dim?DPBo?As?Long

Dim?i?As?Integer?=?0,?j?As?Integer

While?file1.Read(GetData,?0,?5)??0

i?=?i?+?1

For?j?=?0?To?4

s(j)?=?ChrW(GetData(j))

Next

If?s?=?"CMG="""?Then?CMGs?=?i

If?s?=?"[Host"?Then?DPBo?=?i?-?2?:?Exit?While

End?While

主要是vb.net取消了定長字符串, 所以用字節(jié)數(shù)組讀入, 還得轉(zhuǎn)成字符數(shù)組來比較.

C語言轉(zhuǎn)換為VB.NET

Option Explicit On

Option Strict On

Imports System

Module Program

Sub Main()

Dim y,m,t As Integer

begin:

' 輸入數(shù)據(jù)時一行一個

y=CInt(Console.ReadLine())

m=CInt(Console.ReadLine())

t=CInt(Console.ReadLine())

If y

200 Then

Console.WriteLine("ERROR")

goto begin

End If

pr(y,m,t)

Console.Write("Press any key to continue . . . ")

Console.ReadKey(True)

End Sub

Function pr(y As Integer,m As Integer,t As Integer) As Integer

Dim ye,[Me],i As Integer

ye=CInt((m+t-2)/12+y)

[Me]=(m+t-2) Mod 12+1

End If

End Function

Function mday(y As Integer,m As Integer) As Integer

Dim day As Integer()={0,31,28,31,30,31,30,31,31,30,31,30,31}

Dim ad As I