lab 07 รวมคำสั่งภาษา c# เบื้อต้น

ข้อ 1
Console.WriteLine("Live as if you were to die tomorrow.");
Console.WriteLine("Learn as if you were to live forever.");
Console.WriteLine("-Mahatma Gandhi");
ข้อ 2
"Arthur"
18
yourAge
yourName
ข้อ 3
class MainClass
{
  public static void Main(string[] args)
  {
   string x;
   Console.Write("Enter your name: ");
   x = Console.ReadLine();
   Console.WriteLine("Hello, {0}", x);
  }
}
ข้อ 4
using System;
class MainClass
{
  public static void Main(string[] args)
  {
   int x,y;
   Console.Write("Input Dividend : ");
   x = int.Parse(Console.ReadLine());
   Console.Write("Input Divisor : ");
   y = int.Parse(Console.ReadLine());
 
   int a = x/y;
   int b = x%y;
 
   Console.WriteLine("The quotient of {0}/{1} is {2} and the remainder is {3}.", x,y,a,b);
  }
}
ข้อ 5
using System;
using System.Collections.Generic;
public class ChangeTemp
{
 public static void Main()
 {
  Console.Write("Input a temperature in degree Celsius : ");
  double C = double.Parse(Console.ReadLine());
  double F = 9*C/5+32;
  Console.Write("{0:f1} degrees Celsius is equivalent to {1:f1} degrees Fahrenheit", C,F);
 }
}
ข้อ 6
using System;
using System.Collections.Generic;
public class MyClass
{
 public static void Main()
 {
  Console.Write("Enter m: ");
  double m = double.Parse(Console.ReadLine());
  Console.Write("Enter f1: ");
  double f1 = double.Parse(Console.ReadLine());
  Console.Write("Enter t1: ");
  double t1 = double.Parse(Console.ReadLine());
  Console.Write("Enter f2: ");
  double f2 = double.Parse(Console.ReadLine());
  Console.Write("Enter t2: ");
  double t2 = double.Parse(Console.ReadLine());
  double a = (f1*(Math.Cos(t1*Math.PI/180))-f2*(Math.Cos(t2*Math.PI/180)))/m;
  Console.WriteLine("a = {0:F4}" ,a);
  Console.ReadLine();
 }
}
ข้อ 7
int.Parse(Console.ReadLine());
age < 18
ข้อ 8
int.Parse(Console.ReadLine());
s>=80
s>=50
Console.WriteLine("Please try harder.");
ข้อ 9
int.Parse(Console.ReadLine());
(n>=100)&&(n<=200)
ข้อ 10
using System;
class Test
{
   static void Main() {
      Console.Write("Please input x: ");
      int x = int.Parse(Console.ReadLine());
      if(x>35)
       Console.WriteLine("f(x) = {0:f3}", 2*(x*x*x)-5);
      if((x<=35)&&(x>15))
       Console.WriteLine("f(x) = {0:f3}", 3*(x*x));
      if(x<=15)
       Console.WriteLine("f(x) = {0:f3}", 2*x+10);
   }
}
ข้อ11
s1-(int)s1;
t1+(s2-(int)s2);
t2+(s3-(int)s3);
t3>1
ข้อ 12
using System;
class Program
{
    public static void Main(string[] args)
    {
     Console.Write("Enter weight: ");
     double x = double.Parse(Console.ReadLine())
     if(x<1)
      Console.WriteLine("It is small.");
     if((x>=1)&&(x<3))
      Console.WriteLine("It is medium.");
     if(x>=3)
      Console.WriteLine("It is large.");
    }
}
ข้อ 13
Console.Write("Enter N: ");
int.Parse(Console.ReadLine());
i<=n
"{0}", i
i = i+1;
ข้อ 14
0
1
data>0
"Enter data: "
int.Parse(Console.ReadLine());
total += data;

ข้อ15
using System;
class Program
{
    public static void Main(string[] args)
    {
        int total = 0;
        int data = 1;
        while(data>0)
        {
            Console.Write("Enter data: ");
            data = int.Parse(Console.ReadLine());
            int x = data;
            if(x%2==0)
             total += data;
            Console.WriteLine("Total = {0}",total);
        }
        Console.ReadLine();
    }
}
ข้อ16
using System;
class Program
{
    public static void Main(string[] args)
    {
        double sum = 0;
        double score = 0 ;          
  Console.Write("Enter a score, or -1 to quit : ");
        score = double.Parse(Console.ReadLine());
        while(score!=-1)
        {
      sum = sum + score;
            Console.WriteLine("Now summation is : {0:f1}",sum);
       Console.Write("Enter a score, or -1 to quit : ");
         score = double.Parse(Console.ReadLine());
        }
  Console.WriteLine("PROGRAM TERMINATED!!!");
        Console.ReadLine();
    }
}
ข้อ 17
using System;
class Program
{
    public static void Main(string[] args)
    {
 int n;
 Console.Write("Enter number: ");
 n = int.Parse(Console.ReadLine());
 if (n==0)
  Console.WriteLine(0);
 while(n>0 )
 {
  Console.WriteLine(n%10);
  n = n/10;
    }
 Console.ReadLine();
    }
}
 ข้อ18
using System;
class Program
{
    public static void Main(string[] args)
    {
 int n;
 double sum = 0;
 int count = 0;
 Console.Write("Enter binary number: ");
 n = int.Parse(Console.ReadLine());
 while(n>0)
 {
  sum = sum + (n%10)*Math.Pow(2,count);
  n /= 10;
  count++;
    }
 Console.WriteLine(sum);
 Console.ReadLine();
    }
}