PowerShell~文件操作和对象遍历

Param([string] $rootPath)　#输入参数
$scriptPath = Split-Path $script:MyInvocation.MyCommand.Path #当前应用程序目录

Write-Host "Current script directory is $scriptPath" -ForegroundColor Yellow　#定义字体颜色

if ([string]::IsNullOrEmpty($rootPath)) { #如果变量为空，就为它赋值
    $rootPath = "$scriptPath\"
}

Write-Host "Root path used is $rootPath" -ForegroundColor Yellow

$projectPaths = 
    @{Path="$rootPath\src\web";Prj="test.txt"},
    @{Path="$rootPath\src\api";Prj="test.txt"}

$projectPaths | foreach {
    $projectPath = $_.Path
    $projectFile = $_.Prj
    $outPath = $_.Path + "\publish"
    $projectPathAndFile = "$projectPath\$projectFile"
    Write-Host "Deleting old publish files in $outPath" -ForegroundColor Yellow
    remove-item -path $outPath -Force -Recurse -ErrorAction SilentlyContinue #先删除先来的文件夹及内容
    Write-Host "Publishing $projectPathAndFile to $outPath" -ForegroundColor Yellow
 
    New-Item $outPath -type directory  -Force  #建立文件夹 

  　Copy-Item $projectPathAndFile -Destination $outPath # 复制到指定位置

   # dotnet restore $projectPathAndFile
   # dotnet build $projectPathAndFile
   # dotnet publish $projectPathAndFile -o $outPath
}

$test=1,2,3 #定义简单类型数组
$test | foreach{
Write-Host $_　#遍历每个元素
}

$testObj=@{name="zzl";age=34},@{name="zhz";age=8}　#定义一个对象数组
$testObj | foreach{
$name= $_.name　#必须将它赋给一个变量，如果直接在字符串里使用，它将输出自己的类型
$age=$_.age
Write-Host "name=$name,age=$age"
}