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静态类实现单例模式

2014-04-01 23:09 183 查看
//单例模式

            StaticClass sc = StaticClass.Def;

            Console.WriteLine(sc.num);

            sc.num = 100;

            StaticClass ss = StaticClass.Def;

            Console.WriteLine(ss.num);

            Console.ReadKey();

 

        public int num;

        private static StaticClass def;

        public static StaticClass Def

        {

            get

            {

                if (def == null)

                {

                    def = new StaticClass();

                }

                return def;

            }

        }

        private StaticClass()

        {

        }
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