automatic-variable

问题 I'm trying to figure out how I can pass multiple strings as an array to a powershell function. function ArrayCount([string[]] $args) { Write-Host $args.Count } ArrayCount "1" "2" "3" ArrayCount "1","2","3" ArrayCount @("1","2","3") Prints 2 0 0 How can I pass an array with 3 values to the ArrayCount function? Why is the Count zero for some of the invocations? 回答1: In PowerShell, $args is a automatic variable that refers to unnamed arguments. Just change your parameter name: function

问题 I'm trying to figure out how I can pass multiple strings as an array to a powershell function. function ArrayCount([string[]] $args) { Write-Host $args.Count } ArrayCount "1" "2" "3" ArrayCount "1","2","3" ArrayCount @("1","2","3") Prints 2 0 0 How can I pass an array with 3 values to the ArrayCount function? Why is the Count zero for some of the invocations? 回答1: In PowerShell, $args is a automatic variable that refers to unnamed arguments. Just change your parameter name: function

问题 I'm trying to figure out how I can pass multiple strings as an array to a powershell function. function ArrayCount([string[]] $args) { Write-Host $args.Count } ArrayCount "1" "2" "3" ArrayCount "1","2","3" ArrayCount @("1","2","3") Prints 2 0 0 How can I pass an array with 3 values to the ArrayCount function? Why is the Count zero for some of the invocations? 回答1: In PowerShell, $args is a automatic variable that refers to unnamed arguments. Just change your parameter name: function