我想创建一个过程,它的参数也是一个过程.可能吗？
我创建了一些程序用作以下参数：
我创建了一些程序用作以下参数：
Private Sub Jump(xStr as string)
MsgBox xStr & " is jumping."
End Sub
Private Sub Run(xStr as string)
MsgBox xStr & " is jumping."
End Sub
这个程序应该调用以上程序：
Private Sub ExecuteProcedure(?,StringParameter) '- i do not know what to put in there
? ' - name of the procedure with parameter
End Sub
用法：
ExecuteProcedure(Jump,"StringName") ExecuteProcedure(Run,"StringName")
我相信以下代码是您需要的一个例子.
Public Delegate Sub TestDelegate(ByVal result As TestResult)
Private Sub RunTest(ByVal testFunction As TestDelegate)
Dim result As New TestResult
result.startTime = DateTime.Now
testFunction(result)
result.endTime = DateTime.Now
End Sub
Private Sub MenuItemStartTests_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MenuItemStartTests.Click
Debug.WriteLine("Starting Tests...")
Debug.WriteLine("")
'==================================
' Add Calls to Test Modules Here
RunTest(AddressOf Test1)
RunTest(AddressOf Test2)
'==================================
Debug.WriteLine("")
Debug.WriteLine("Tests Completed")
End Sub
整个文章可以在http://dotnetref.blogspot.com/2007/07/passing-function-by-reference-in-vbnet.html找到
希望这可以帮助.