如何将多个参数传递给 PowerShell 中的函数? [英] How do I pass multiple parameters into a function in PowerShell?

问题描述

如果我有一个接受多个字符串参数的函数，第一个参数似乎获取分配给它的所有数据，其余参数作为空传入.

If I have a function which accepts more than one string parameter, the first parameter seems to get all the data assigned to it, and remaining parameters are passed in as empty.

快速测试脚本:

Function Test([string]$arg1, [string]$arg2)
{
    Write-Host "`$arg1 value: $arg1"
    Write-Host "`$arg2 value: $arg2"
}

Test("ABC", "DEF")

生成的输出为

$arg1 value: ABC DEF
$arg2 value: 

正确的输出应该是:

$arg1 value: ABC
$arg2 value: DEF

这在多台机器上的 v1 和 v2 之间似乎是一致的，所以很明显，我做错了什么.谁能指出具体是什么?

This seems to be consistent between v1 and v2 on multiple machines, so obviously, I'm doing something wrong. Can anyone point out exactly what?

推荐答案

PowerShell(所有版本)中函数调用中的参数以空格分隔，而不是逗号分隔.此外，括号是完全不必要的，如果 Set-StrictMode -Version 2 或更高版本处于活动状态.括号中的参数仅用于 .NET 方法.

Parameters in calls to functions in PowerShell (all versions) are space-separated, not comma separated. Also, the parentheses are entirely unneccessary and will cause a parse error in PowerShell 2.0 (or later) if Set-StrictMode -Version 2 or higher is active. Parenthesised arguments are used in .NET methods only.

function foo($a, $b, $c) {
   "a: $a; b: $b; c: $c"
}

ps> foo 1 2 3
a: 1; b: 2; c: 3

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