1、功能描述
1. 连接软件源服务器下载.NET Framework 4.0、.NET Framework 4.5。
2. 检测并判断当前.NET Framework版本是否小于v4.0，如果小于则进行升级。
在升级.NET Framework时，是先从3.5升级(可以通过执行命令”Add-windowsFeature As-Net-Framework”直接安装3.5)，然后依次升级4.0、4.5。
2、实现
源码如下：
# eastmoney public tools# version: v1.0.2# create by XuHoo, 2016-9-27#try { Import-Module ServerManager -ErrorAction Stop Import-Module BitsTransfer -ErrorAction Stop } catch { Write-Warning "$_"; exit }$packages_path = "D:software" # Packages storage directoryfunction Download() { $isExists = Test-Path $packages_path if(!$isExists) { New-Item -ItemType Directory $packages_path } # instantiate a socket object, # Try connect to download the source $testConn = New-Object Net.Sockets.TcpClient $testConn.Connect("$address", 80) # $address need to custom if($testConn) { Start-BitsTransfer $address/dotnet4.0.exe $packages_path Start-BitsTransfer $address/dotnet4.5.exe $packages_path return $true } else { return $false } }function CheckVersion { # To detect the .NET Framework whether exists in the registry $isExists = Test-Path "HKLM:SOFTWAREMicrosoftNET Framework Setup" if(!$isExists) { return $false } else { # Returns the current .NET Framework version $version = gci "HKLM:SOFTWAREMicrosoftNET Framework SetupNDP" | sort pschildname -desc | select -fi 1 -exp pschildname return $version } }function Update { Add-WindowsFeature As-Net-Framework # Update .NET Framework 3.5 # The first cycle: # Perfrom CheckVersion function, returns the value assigned to $response # If $response <p> </p>
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