脚本参数匹配 [英] Script Argument matching

问题描述

在处理传递给脚本的参数时，PowerShell是否执行某种最接近的匹配或自动补全功能?给定此代码...

Does PowerShell do some sort of nearest match or autocompletion when dealing with arguments passed to a script? Given this code...

[CmdletBinding()]
Param(
    [string][Alias("aS")] $applySet,
    [string][Alias("cS")] $conformSet,

    [string][Alias("sL")] $setList,
    [Parameter(ValueFromRemainingArguments = $true)][Object[]]$extraParameters = @()
)

Write-Host "s:  $set"
Write-Host "sL: $setList"
Write-Host "aS: $applySet"
Write-Host "cS: $conformSet"
Write-Host "X:  $extraParameters"

如果我在脚本快捷方式中使用 -junk"junk" ，则会按预期在 $ extraParameters 中获得该信息.拼写错误的内容(例如 -aplySet )也会显示为额外的参数.但是，使用 -set 实际上会填充 $ setList 变量，而不是我期望的 $ extraParameters .

If I use -junk "junk" in the script shortcut I get that info in $extraParameters as expected. Misspelling something, say -aplySet, also shows up as an extra parameter. However, using -set actually populates the $setList variable rather than $extraParameters as I would expect.

在PowerShell 2.0和5.1中进行了验证.有什么想法吗?

Verified in PowerShell 2.0 and 5.1. Any thoughts?

推荐答案

PowerShell允许使用参数名称的初始字符，只要它们没有歧义即可.

PowerShell allows using the initial characters of a parameter name as long as they are unambiguous.

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