如果您的脚本需要参数，Param 关键字必须是脚本中的第一条语句.

If your script requires arguments, the Param keyword must be the first statement in the script.

但是，您可以稍后使用 Read-Host cmdlet 要求用户输入:

However, you can ask the user for input later by using the Read-Host cmdlet:

$processId = Read-Host "Enter the PID of the process to kill"