variables - 变量扩展和转义字符

Question

在PowerShell中，您可以在字符串中扩展变量，如下所示:

$myvar = "hello"
$myvar1 = "$myvar`world" #without the `, powershell would look for a variable called $myvarworld
Write-Host $myvar1 #prints helloworld

我遇到的问题是转义字符，例如 n r等，如下所示:

$myvar3 = "$myvar`albert"
Write-Host $myvar3 #prints hellolbert as `a is an alert 

还以下不起作用:

$myvar2 = "$myvar`frank" #doesnt work
Write-Host $myvar2 #prints hellorank.

问题:
使用自动变量扩展功能时，如何组合字符串而不必担心转义字符？
还是只需要这样:

$myvar = "hello"
$myvar1 = "$myvar"+"world" #using +
Write-Host $myvar1
$myvar2 = "$myvar"+"frank" #using +

Answer 1

这种方式尚未提及:

"$($myvar)frank"

和这个:

"${myvar}frank"