在win10光盘里提取“microsoft-windows-netfx3-ondemand-package.cab”安装包
然后放在sxs目录新建批处理。。。??Cls@ECHO OFFTITLE "Win10 离线安装 Microsoft .NET Framework 3.5 组件"mode con cols=118 lines=22color ARd "%WinDir%\system32\Testpermissions" >NUL 2>NULMd "%WinDir%\System32\Testpermissions" 2>NUL || (Echo 请右键以管理员身份运行! && Pause > NUL && Exit)Rd "%WinDir%\System32\Testpermissions" 2>NULDism.exe /online /add-package /packagepath:"%~dp0Sxs"ECHO 请按任意键继续。Pause >NULDism.exe /online /enable-feature /featurename:NetFX3 /Source:"%~dp0Sxs"ECHO 请按任意键结束。Pause >NUL方能成功!