class Program { void SayHello(int a, float b, double c) { a = 1; b = 2; c = 3; } static void Main(string[] args) { Program p = new Program(); p.SayHello(c: 3, b: 34, a: 22); }
命名参数和可选参数
原文：http://www.cnblogs.com/caofangsheng/p/4852508.html
