在数组中调用一组函数

Question

我想创建一些函数名称的数组，然后根据传递给我的脚本的参数调用这些数组。这可能吗？在下面的粗略示例中，如果我将2作为参数传递给脚本，我希望$twoFuncs函数列表按照的顺序被称为。

param ($whichFuncs) 
Function a{ Write-Host "Executing function a" } 
Function b{ Write-Host "Executing function b" } 
Function c {Write-Host "Executing function c" } 
$twoFuncs = @("a","b") 
$threeFuncs = @("c","b","a") 

if($whichFuncs -eq 2) 
{ 
    # execute functions a + b 
} 

Answer 1

什么你要找的是呼叫运营商&和一个foreach循环。

PS C:\Users\Frode> $twoFuncs | ForEach-Object { & $_ } 
Executing function a 
Executing function b 

Answer 2

如何使用开关？

param ($whichFuncs) 
Function a{ Write-Host "Executing function a" } 
Function b{ Write-Host "Executing function b" } 
Function c {Write-Host "Executing function c" } 
switch ($whichFuncs) 
{ 
    2 {a;b} 
    3 {c;b;a} 
}