Lab 10 - เมธอด ภาค 2 (การส่งพารามิเตอร์) และการใช้งานไฟล์

using System;
class MainClass
{
    static void add_bonus(){
        s1 = s1 + bonus;
s2 = s2 + bonus;
s3 = s3 + bonus;
    }
    public static void Main(string[] args)
    {
        int s1 = 1, s2 = 2, s3 = 3;
        Console.Write("Enter Bonus: ");
        int bonus = int.Parse(Console.ReadLine());
        add_bonus(ref s1, ref s2, ref s3, bonus);
        Console.WriteLine("{0}, {1}, {2}",s1,s2,s3);
        Console.ReadKey();
    }
}

ข้อ 1.2

using System;
class MainClass
{
    static void swap(){
int x = a; a = b; b = x;
    }
    public static void Main(string[] args)
    {
        int sum = 0;
        Console.Write("Enter a: ");
        int a = int.Parse(Console.ReadLine());
        Console.Write("Enter b: ");
        int b = int.Parse(Console.ReadLine());
        swap();
        Console.WriteLine("Swap a and b");
        Console.WriteLine("a={0} b={1}",a,b);
        Console.ReadKey();
    }
}

ข้อที่ 1.3

using System;
class RefExample
{
    static void ReadTwoNums()
    {
        Console.WriteLine("Enter two number:");
        a = int.Parse(Console.ReadLine());
        b = int.Parse(Console.ReadLine());
    }
    static void Main()
    {
        int n1 = 0, n2 = 0;
        ReadTwoNums();
        Console.WriteLine("Numbers are {0} and {1}", n1, n2);
        Console.ReadKey();
    }
}

ข้อ 2