Question

任何人都可以告诉我为什么下面的代码不起作用？我想最终得到匹配两者的驱动器，例如F：和G：

我知道它很简单，但无法弄明白。欢迎快速解释。谢谢

$USBDrives =$null 
$WMIUSBDrives="E:","F:","G:"
$SystemDrives="D:","F:","G:"
$USBDrives = $SystemDrives | Where {$_ -contains $WMIUSBDrives}
$USBDrives

Answer 1

你实际上应该用这种方式......：）

$USBDrives = $SystemDrives | Where {$WMIUSBDrives -contains $_}
$USBDrives

以您想要的方式运行的运算符是在v3中添加的-in。 HTH 鲍尔泰克

Answer 2

为了实现上述目标，我认为$ WMIUSBDrives和$ SystemDrives必须匹配。

请改为尝试：

$USBDrives =$null 
$WMIUSBDrives="E:","F:","G:"
$SystemDrives="D:","F:","G:"
foreach($drive in $WMIUSBDrives)
{
    if($SystemDrives  -contains $drive){$USBDrives += $drive}
}
$USBDrives

PowerShell：比较2个变量

2 个答案: