Question

我正在尝试使用Powershell来选择启用/禁用网络适配器“以太网” 我编码了这个

$caption = "Choose Action";
$message = "What do you want to do?";
$enab = start-process powershell -verb runas -argument D:\ena.ps1
$disa = start-process powershell -verb runas -argument D:\dis.ps1
$choices = [System.Management.Automation.Host.ChoiceDescription[]]($enab,$disa);
$answer = $host.ui.PromptForChoice($caption,$message,$choices,0)
switch ($answer){
0 {"You entered Enable"; break}
1 {"You entered Disable"; break}
}

错误：

对象不能存储在此类型的数组中。   在D：\ Untitled4.ps1：5 char：1   + $ choices = System.Management.Automation.Host.ChoiceDescription [];   + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~       + CategoryInfo：OperationStopped：（:) []，InvalidCastException       + FullyQualifiedErrorId：System.InvalidCastException

使用“4”参数调用“PromptForChoice”的异常：“Value   不能为空。参数名称：选项“在D：\ Untitled4.ps1：6 char：1   + $ answer = $ host.ui.PromptForChoice（$ caption，$ message，$ choices，0）   + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~       + CategoryInfo：NotSpecified：（:) []，MethodInvocationException       + FullyQualifiedErrorId：ArgumentNullException

我之前在使用powershell执行On / Off脚本时失败了（如果net适配器启用然后禁用它，反之亦然。有没有办法做到这一点？

Answer 1

使用此：https://technet.microsoft.com/en-us/library/ff730939.aspx我认为您想要做的是以下内容：

$caption = "Choose action:"
$message = "What state do you want for the network adapter?"

$enable = New-Object System.Management.Automation.Host.ChoiceDescription "&Enable", `
    "Enables the Network Adapter"

$disable = New-Object System.Management.Automation.Host.ChoiceDescription "&Disable", `
    "Disables the Network Adapter"

$options = [System.Management.Automation.Host.ChoiceDescription[]]($enable, $disable)

$result = $host.ui.PromptForChoice($caption, $message, $options, 0) 

switch ($result)
{
    0 { 
        "You selected Enable." 
        start-process powershell -verb runas -argument D:\ena.ps1
    }
    1 {
        "You selected Disable."
        start-process powershell -verb runas -argument D:\dis.ps1
    }
}

您正在尝试的方法无效，因为您尝试将process分配给ChoiceDescription数组。在上面的示例中，您必须先创建两个ChoiceDescription对象，然后再将它们分配给数组

选择使用Powershell启用/禁用网络适配器

1 个答案: