在數組中調用一組函數

Question

我想創建一些函數名稱的數組，然後根據傳遞給我的腳本的參數調用這些數組。這可能嗎？在下面的粗略示例中，如果我將2作爲參數傳遞給腳本，我希望$twoFuncs函數列表按照的順序被稱爲。

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

什麼你要找的是呼叫運營商&和一個foreach循環。

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

Answer 2

如何使用開關？

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} 
}