設計模式總結

一、單例模式

namespace DesignPattern
{
    public class Single_Pattern
    {
        private static Single_Pattern single_Pattern = null;
        private static object syncObject = new object();

        public static Single_Pattern  Instance
        {
            get
            {
                lock (syncObject)
                {
                    if (single_Pattern == null)
                    {
                        single_Pattern = new Single_Pattern();
                    }
                }
                return single_Pattern;
            }
        }
    }
}