[已解決]安裝telnet的批處理在Windows7報錯如何修改不能讓它報錯呢最后由 ckjshi 于 -1-7 11:30修改原因：在Windows7報錯，在Windows10運行一切正常。我想讓此腳本在Windows7、Windows10、Windows11都可以正常運行，能否實現？提前感謝大家，給我提供幫助。在Windows7報錯這樣的錯誤

方法調用失敗，因為 [System.Net.Sockets.TcpClient] 不包含名為“Dispose”的方法。
所在位置 行:41 字符: 27
+ $tcpClient.Dispose <<<< ()
+ CategoryInfo: InvalidOperation: (Dispose:String) [], RuntimeEx
 ception
+ FullyQualifiedErrorId : MethodNotFound
nclick="copycode($('code0'));">復制代碼

以下是腳本源代碼

www.sohu.com NULL
192.168.1.111 3389
192.168.41.233 NULL
www.12306.cn 443
nclick="copycode($('code1'));">復制代碼

<#*,:&cls
@echo off
netsh advfirewall set allprofiles state off
if exist %windir%system32telnet.exe (echo （Telnet）已安裝，現在開始測試，請耐心等待（測試結果）后，拍照或截圖發送給我們。) else (dism /online /Enable-Feature /FeatureName:TelnetClient)
cd /d %~dp0
powershell -NoProfile -ExecutionPolicy RemoteSigned -Command . ([scriptBlock]::Create((Get-Content -LiteralPath %~0 -ReadCount 0 | Out-String ))) 
pause
exit /b
#>
# IP_List
echo  
echo  
$ipListFile = .IP_list.txt
# Record output
$outfile = .Record.txt
# output format
$format = {0} - {1} - {2}
$ping = New-Object System.Net.NetworkInformation.Ping
Get-Content -Path $ipListFile | ForEach-Object {
$_ | Write-Host
$arrIPPort = $_ -split 's+'
if ($arrIPPort.Count -gt 1) {
$ip = $arrIPPort[0]
$port = $arrIPPort[1]
$pingReply = $ping.Send($ip)
if ($pingReply.Status -eq 'Success') {
$pingResult = 'ping通'
} else {
$pingResult = 'ping不通'
}
try {
$tcpClient = New-Object System.Net.Sockets.TcpClient -ArgumentList @($ip, $port)
$tcpResult = ${port}端口通
} catch {
$tcpResult = ${port}端口不通
} finally {
if ($tcpClient) {
$tcpClient.Dispose()
}
}
$format -f $ip, $pingResult, $tcpResult
}
} | Set-Content -Path $outfile
$ping.Dispose()
echo  
echo  
echo --------------------測試結果--------------------
echo  
type .Record.txt
nclick="copycode($('code2'));">復制代碼