面试题：在分布式系统，你能想出来几种生成唯一ID的方案？(16)_系统唯一ID是我们在设计一个系统的时候

t1.IsBackground = true;
t2.IsBackground = true;

t1.Start();
t2.Start();
try
{
Thread.Sleep(30000);
t1.Abort();
t2.Abort();

catch (Exception e)
{

Console.WriteLine(\"done\");

private static void DoTestIdWoker(IdWorker idWorker HashSet<long> set)
{