c# params 范例

 1 　using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 
 5 namespace ConsoleApplication1
 6 {
 7  class Program
 8  {
 9  static void Main(string[] args)
10  {
11  Console.WriteLine(Test("Jack"));//不传值，显示Jack
12  Console.WriteLine(Test("Jack", "Hi"));//传一个值，显示Jack Hi
13  Console.WriteLine(Test("Jack", "Hi", "How are you?"));//传多个值，显示Jack Hi How are you?
14 
15  Console.ReadKey();
16  }
17 
18  static string Test(string name, params string[] args)
19  {
20  string msg = name;
21 
22  for (int i = 0; i < args.Length; i++)
23  msg += " " + args[i];
24 
25  return msg;
26  }
27  }
28 }