小编Vai*_*hav的帖子

我有两个序列如下

t = [[1,2,3],[4,5,6],[7,8,9]]
alpha = ['a','b','c']

如何使用列表理解来修改 t 如下：-

t = [[1,2,3,'a'],[4,5,6,'b'],[7,8,9,'c']]

检查开关值的正确方法是什么？

function testSwitch
{
    Param(
        [switch] $swth
    )

    Write-Host "Value of swth is $swth"

    if($swth.IsPresent){
        Write-host "Switch is present"
    }
    if($swth){
        Write-Host "Switch is present"
    }

}

testSwitch -swth

我知道这两个语句是否都能正常工作，但是如何？