static CheckTargetService()
{
_platform = OsPaltformMgr.GetInstance().Platform;
System.Console.WriteLine($"wroking in {_platform}");
_pingCmd = new UniformPingFactory(_platform).PingCmd;
}
static ExtractChainFactory()
{
if (null == _instance)
{
lock (_lock)
{
if (null == _instance)
{
_instance = new ExtractChainFactory(OsPaltformMgr.GetInstance().Platform);
}
}
}
}
