如何動態更改變量值？

Question

我有我的PowerShell腳本以下變量

$Buildlog="FormalBuild.log" 
$Logger="/flp1:Append;LogFile=$Buildlog;Verbosity=Diag;" 

#Logger will use Formalbuild.log 
Write-host $logger 

$Buildlog="Dailybuild.log" 

#Logger should use Dailybuild.log file 
Write-host $logger 

$記錄器始終顯示Formalbuild.log。我不想重新定義記錄器。有什麼辦法可以使$ logger的值動態化嗎？

Answer 1

查找這裏舉例：http://powershell.com/cs/blogs/tips/archive/2011/10/31/creating-intelligent-variables.aspx

然後代碼片斷可能是：

$Buildlog="FormalBuild.log" 

$logger = Set-PSBreakpoint -Variable logger -Mode Read -Action { $global:logger = "/flp1:Append;LogFile=$Buildlog;Verbosity=Diag;" } 

#Logger will use Formalbuild.log 
Write-host $logger 

$Buildlog="Dailybuild.log" 

#Logger should use Dailybuild.log file 
Write-host $logger