浅谈单例的三种实现--C#

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public sealed class Singleton
{
    private static Singleton instance = null;
    private static readonly object padlock = new object();


    Singleton()
    {
    }


    public static Singleton Instance
    {
        get
        {
            if (instance == null)
            {
                lock (padlock)
                {
                    if (instance == null)
                    {
                        instance = new Singleton();
                    }
                }
            }
            return instance;
        }
    }
}

public sealed class Singleton
{
    public static readonly Singleton instance = new Singleton();


    private Singleton()
    {
    }
}

public sealed class Singleton
{
    public static readonly Singleton instance = new Singleton();


    // Explicit static constructor to tell C# compiler
    // not to mark type as beforefieldinit
    static Singleton()
    {
    }


    private Singleton()
    {
    }


}

浅谈单例的三种实现--C#,布布扣,bubuko.com

浅谈单例的三种实现--C#

标签：style   for   re   c   代码   ar   new   .net   

原文地址：http://blog.csdn.net/lan_liang/article/details/38095129