192.168.254.1
powershell Remove-DnsServerResourceRecord -Name "" -ZoneName "ddns.qingzhou4s.cn" -RRType "A" -Force
powershell Add-DnsServerResourceRecordA -Name "" -ZoneName "ddns.qingzhou4s.cn" -IPv4Address "192.168.254.1" -Timetolive 00:10:00