如果不想硬编码路径，可以把Master.ps1做成这样:

If you don't want to hard code the path, you can make Master.ps1 like this:

&"$PSScriptroot\1.ps1"
&"$PSScriptroot\2.ps1"
&"$PSScriptroot\3.ps1"

它会在它所在的同一目录中查找那些脚本.

And it will look for those scripts in the same directory where it is.