vb.net多线程计算 vb6多线程处理

在vb.net中 , 多线程如何使用Sub Main()Dim thr As New Thread(AddressOf 循环)thr.Start("a")End SubSub 循环(a() As String)'这里随你干什么循环也行For Each i As String In aMsgBox(i)NextEnd Sub
vb.net 循环使用多线程ListBox操作需要用Invoke 。另外多线程方式并不是并行处理 。
建议采用.net framework 4 带的并行处理循环操作,若不是4.0版本的framework , 可以使用Aforge的并行库比较方便 。
VB.NET 简单多线程多线程一般是不推荐用的,因为线程之间如果有共享资源的话会引起竞争 , 需要加锁处理vb.net多线程计算;而且线程间没有时序关系,所以vb.net多线程计算你在调试中可能会出现异步处理结束顺序与开始处理顺序不一致的情况(我在调试中已经发现该问题) 。
针对你提出的这个问题 , 采用了多线程处理,利用的是BackgroundWorker也就是异步处理控件进行了处理 。
代码已经经过调试通过 。欢迎交流,如有问题,留下QQ或其他联系方式 。
代码如下,并附程序截图 。
‘---------------------------------------------------
Imports System.ComponentModel '导入异步控件命名空间
Public Class Form1
Private howmany As Integer = 10
Private AnalysisNumber(0 To howmany - 1) As BackgroundWorker
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ListBox1.Items.Clear()
creatNewBackgroundWorker()
addHandle()
startWork()
End Sub
Private Sub creatNewBackgroundWorker()
For i As Integer = 0 To AnalysisNumber.Length - 1
AnalysisNumber(i) = New BackgroundWorker
Next
End Sub
Private Sub addHandle()
For i As Integer = 0 To AnalysisNumber.Length - 1
AddHandler AnalysisNumber(i).DoWork, AddressOf AnalysisNumber_DoWork
AddHandler AnalysisNumber(i).RunWorkerCompleted, AddressOf AnalysisNumber_RunWorkerCompleted
Next
End Sub
Private Sub startWork()
For i As Integer = 0 To 9
Dim temp(0 To 9) As Integer
For j As Integer = 1 To 10
temp(j - 1) = 10 * i + j
Next
AnalysisNumber(i).RunWorkerAsync(temp)
Next
End Sub
Private Sub AnalysisNumber_DoWork(ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs)
Dim data As Integer()
data = https://www.04ip.com/post/CType(e.Argument, Integer())
Dim temp As Integer
For i As Integer = 0 To data.Length - 1
temp = data(i)
data(i) = temp * temp
Next
e.Result = data
End Sub
Private Sub AnalysisNumber_RunWorkerCompleted(ByVal sender As Object, ByVal e As System.ComponentModel.RunWorkerCompletedEventArgs)
Dim data As Integer()
data = https://www.04ip.com/post/CType(e.Result, Integer())
For i As Integer = 0 To data.Length - 1
ListBox1.Items.Add(data(i))
Next
End Sub
End Class
VB.net 如何设计多线程运行Sub Main()
Dim thr As Thread
For Pi As Integer=0 To 4 //启用5线程
MulParams =PivbTabsFilevbTabdFilevbTab1vbTabDelNvbTabcrvbTabcgvbTabcbvbTabIndexI
GlobalParamas(pi)=MulParams .Split(vbTab)
thr=New Thread(AddressOf MyMulThreadCaller)
thr.Start() //启动多线程进程
Application.DoEvents
Next
End Sub
vb.net里如何设置多线程?首先vb.net多线程计算 , 你把你那些要运行很久vb.net多线程计算的过程 。尽量放在一个过程中 。
因为线程只能是过程,不能使函数,没有返回值的 。
然后,在某个事件下这样写:
**这里vb.net多线程计算我假设你的那个很就的过程叫做 sub aaa()
调用如下:
Dim mythread As New System.Threading.Thread(AddressOf aaa)
mythread.Start()
***********
这样就是定义一个线程,名字叫 mythread,这个线程会运行aaa这个过程 。

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