Invoke-RestMethod -Method Post -Uri "https://ntfy.sh/[你的主题名称]" -ContentType "text/plain; charset=utf-8" -Headers @{ Title = "=?utf-8?B?6L+Z5piv5qCH6aKY?="; Priority = "5"; Tags = "loudspeaker" } -Body "这是正文。"

$Request = @{
  Method = "POST"
  URI = "https://ntfy.sh/[你的主题名称]"
  ContentType = "text/plain; charset=utf-8"
  Headers = @{
    Title = "=?utf-8?B?6L+Z5piv5qCH6aKY?="
    Priority = "5"
    Tags = "loudspeaker"    
  }
  Body = "这是正文。"
}
Invoke-RestMethod @Request