转vb.net的简单介绍
vb的回调函数转为vb.NET
先声明一个委托:
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Public Delegate Function EnumChildProc(hwnd As Integer, iParam As Integer) As Integer
然后才能使用回调函数,回调函数的参数要和委托完全一致。
然后那个 API 函数需要这样声明:
Declare Function EnumChildWindows Lib "user32" (hWndParent As Integer, lpEnumFunc As EnumChildProc, lParam As Integer) As Integer
下面的VB6.0编写的代码怎么转为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取消了定长字符串, 所以用字节数组读入, 还得转成字符数组来比较.
C语言转换为VB.NET
Option Explicit On
Option Strict On
Imports System
Module Program
Sub Main()
Dim y,m,t As Integer
begin:
' 输入数据时一行一个
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
文章标题:转vb.net的简单介绍
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