如何动态更改变量值？

Question

我有我的PowerShell脚本以下变量

$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 

$记录器始终显示Formalbuild.log。我不想重新定义记录器。有什么办法可以使$ logger的值动态化吗？

Answer 1

查找这里举例：http://powershell.com/cs/blogs/tips/archive/2011/10/31/creating-intelligent-variables.aspx

然后代码片断可能是：

$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