private static void TestGenericSingleton()
{
Console.WriteLine("泛型单例模式：");
Singleton4 instance = GenericSingleton <Singleton4> .GetInstance();
instance.GetInfo();
var singleton4 = Singleton4.Instance;
singleton4.GetInfo();
Console.ReadLine();
}
public static Singleton4 GetSingleton4()
{
if (_singleton4 == null)
{
lock (LockHelper)
{
if (_singleton4 == null)
{
_singleton4 = new Singleton4();
}
}
}
return(_singleton4);
}
static void Main(string[] args)
{
//
var company1 = Singleton1.GetInstance("Company 1");
var company2 = Singleton1.GetInstance("Company 2");
Console.WriteLine(company1.Name); // 1
Console.WriteLine(company2.Name); // 1
//
(new Thread(() =>
{
var os1 = Singleton2.GetInstance("Windows 10");
Console.WriteLine(os1.Name);
})).Start();
var os2 = Singleton2.GetInstance("Ubuntu");
Console.WriteLine(os2.Name);
//
(new Thread(() =>
{
var createDate1 = Singleton3.GetInstance();
Console.WriteLine(createDate1.Date.Ticks);
})).Start();
var createDate2 = Singleton3.GetInstance();
Console.WriteLine(createDate2.Date.Ticks);
//
(new Thread(() =>
{
var modifyDate1 = Singleton4.GetInstance();
Console.WriteLine(modifyDate1.Date.Ticks);
})).Start();
var modifyDate2 = Singleton4.GetInstance();
Console.WriteLine(modifyDate2.Date.Ticks);
//
(new Thread(() =>
{
var lazy1 = Singleton5.GetInstance();
Console.WriteLine(lazy1.Id);
})).Start();
var lazy2 = Singleton5.GetInstance();
Console.WriteLine(lazy2.Id);
}
static void Main(string[] args)
{
Singleton4 instanc1 = null;
Singleton4 instanc2 = null;
Singleton4 instanc3 = null;
Singleton4 instanc4 = null;
new Thread(() =>
{
instanc1 = Singleton4.GetInstance();
}).Start();
new Thread(() =>
{
instanc2 = Singleton4.GetInstance();
}).Start();
new Thread(() =>
{
instanc3 = Singleton4.GetInstance();
}).Start();
new Thread(() =>
{
instanc4 = Singleton4.GetInstance();
}).Start();
Thread.CurrentThread.Join(500);
if ((instanc1 == instanc2) && (instanc3 == instanc4))
{
Console.WriteLine("singleton");
}
else
{
Console.WriteLine("singleton error");
}
Console.Read();
}
