DesignPatterns/CreatePattern/SingletonPattern/Program.cs at main · WeihanLi/DesignPatterns · GitHub

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// //0
// var i0 = Singleton.GetInstance();
// Console.WriteLine($"Singleton {ReferenceEquals(i0, Singleton.GetInstance())}");
// //1
// var i1 = Singleton1.GetInstance();
// Console.WriteLine($"Singleton1 {ReferenceEquals(i1, Singleton1.GetInstance())}");
// //2
// var i2 = Singleton2.GetInstance();
// Console.WriteLine($"Singleton2 {ReferenceEquals(i2, Singleton2.GetInstance())}");

Console.WriteLine("Singleton");
Enumerable.Range(1, 10).Select(i => Task.Run(() =>
{
    Console.WriteLine($"{Singleton.GetInstance().GetHashCode()}");
})).WhenAll().Wait();

Console.WriteLine("Singleton1");
Enumerable.Range(1, 10).Select(i => Task.Run(() =>
{
    Console.WriteLine($"{Singleton1.GetInstance().GetHashCode()}");
})).WhenAll().Wait();

Console.WriteLine("Singleton2");
Enumerable.Range(1, 10).Select(i => Task.Run(() =>
{
    Console.WriteLine($"{Singleton2.GetInstance().GetHashCode()}");
})).WhenAll().Wait();

Console.WriteLine("Singleton3");
Enumerable.Range(1, 10).Select(i => Task.Run(() =>
{
    Console.WriteLine($"{Singleton3.GetInstance().GetHashCode()}");
})).WhenAll().Wait();

Console.ReadLine();