ExitDefaultVal

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ExitDefaultVal

{

class Program

{

static void DefValue(string a="Hi",string b="Jim")

{

Console.WriteLine(a+" "+b);

}

static void Main(string[] args)

{

Console.WriteLine("AAAAA");

DefValue();

DefValue("hello");

DefValue(b: "Tom");

Environment.Exit(2);

Console.WriteLine("BBBBB");

}

/*

AAAAA

Hi Jim

hello Jim

Hi Tom

请按任意键继续. . .

*/

}

}