C#实现函数默认值和C#4.0实现默认值

static void Main(string[] args)
      {
           SayHello("侯志强", );
           SayHello("侯志强");  

           Console.ReadKey();
      }  

       C#.0实现参数的默认值
       static void SayHello(string strName,int nAge=)
      {
           Console.WriteLine("我的名字是{0}，今年{1}岁", strName, nAge);
        }  

       //C#4.0以前实现参数默认值
       static void SayHello(string strName1, int nAge)
       {
            Console.WriteLine("我的名字是{0}，今年{1}岁", strName1, nAge);
       }  

        static void SayHello(string strName1)
        {
            SayHello(strName1, );
        }  

来自:http://blog.csdn.net/yisuowushinian/article/details/7566823