static void Main(string[] args)
{
Console.WriteLine("-----------饿汉式-----------");
Console.WriteLine($"当前时间(主线程)：{DateTime.Now}");
DBHungry.Show();
Console.WriteLine("-----------懒汉式-----------");
DBLazy dbLazy = DBLazy.GetInstance();
Console.WriteLine($"当前时间(主线程)：{DateTime.Now}");
dbLazy.Show();
Console.ReadKey();
}
public static DBLazy GetInstance()
{
if (null == instance)
{
lock (lockMe)
{
if (null == instance)
{
Console.WriteLine($"线程（{Thread.CurrentThread.ManagedThreadId}）: 准备new实例");
instance = new DBLazy();
}
}
}
return(instance);
}
