当PowerShell生成超文本标记语言时，如何从-Fragment中排除表，列组和第一个tr？

$doc = New-Object -ComObject "HTMLFile"

$table = $doc.createElement("table")
$doc.body.appendChild($table)

$thead = $doc.createElement("thead")
$table.appendChild($thead)

$tr = $doc.createElement("tr")
$thead.appendChild($tr)

$th1 = $doc.createElement("th")
$th1.innerText = "列1"
$tr.appendChild($th1)

$th2 = $doc.createElement("th")
$th2.innerText = "列2"
$tr.appendChild($th2)

$tbody = $doc.createElement("tbody")
$table.appendChild($tbody)

$tr = $doc.createElement("tr")
$tbody.appendChild($tr)

$td1 = $doc.createElement("td")
$td1.innerText = "数据1"
$tr.appendChild($td1)

$td2 = $doc.createElement("td")
$td2.innerText = "数据2"
$tr.appendChild($td2)