vb.net线程锁 vba 线程

VB.NET 简单多线程多线程一般是不推荐用的vb.net线程锁,因为线程之间如果有共享资源的话会引起竞争vb.net线程锁 , 需要加锁处理vb.net线程锁;而且线程间没有时序关系,所以vb.net线程锁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vb.net线程锁他联系方式 。
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 * ij
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())
【vb.net线程锁 vba 线程】For i As Integer = 0 To data.Length - 1
ListBox1.Items.Add(data(i))
Next
End Sub
End Class
请问在vb .net中的locked和readonly有什么区别呢locked是线程相关的东西,是保证一次只能一个线程调用,readonly是只读属性 , 概念区别大大的呀 。
vb.net 多线程操作出错还是并发加锁 , 你判断时候,上一个线程还未执行_datalist.RemoveAt(0),所0,然后就会出错了 , 你最好先 Remove到一个变量里 , 然后执行发送,在Remove和判断的时候加锁
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