powershell ping包加端口

在PowerShell中，你可以使用`Test-NetConnection`或`Invoke-WebRequest`来ping一个包并检查特定端口是否开放。这里有两个方法：

1. 使用`Test-NetConnection`（ping和端口检查）：

# Ping a host and check a specific port
$target = "example.com" # Replace with your target IP or hostname
$port = 80 # Replace with the desired port number

# Ping test
$result = Test-InformationLevel Quiet

# Port check (assuming HTTP on port 80)
$portCheck = Invoke-WebRequest -Uri "http://$target:$port" -Method HEAD -UseBasicParsing -ErrorAction SilentlyContinue
if ($result -and $portCheck.StatusCode -eq 200) {
    Write-Host "Host is accessible and port $port open"
} else {
    Write-Host "Host unreachable or port $port closed"
}

2. 使用`Invoke-WebRequest`（直接尝试连接到端口）：

# Try to connect to the port
try {
    Invoke-WebRequest -Uri "http://$target:$port" -Method HEAD -UseBasicParsing
    Write-Host "Port $port is open"
} catch [System.Net.WebException] {
    Write-Host "Port $port is closed"
} catch {
    Write-Host "Error: $_"
}

这两个命令都会尝试与目标主机建立连接，并根据结果判断端口是否可用。如果执行时遇到问题，可能会显示错误信息。