ch4_04.cs

《c#技术内幕代码》

using System;
class CH4_4
{
   public static void Main()
   {
      // An example of a simple while loop
      Console.WriteLine("Loop 1:");
      int i = 0;
      while ( i < 5 )
      {
         Console.WriteLine("I = {0}", i );
	 i++;
      }
      
      // A while loop with a boolean 
      Boolean flag = false;
      i = 0;
      Console.WriteLine("\nLoop 2:");
      while ( !flag )
      {
         if ( i > 5 )
	    flag = true;
	 Console.WriteLine("I = {0}", i );
         i++;
      }
      
      // A loop that will never execute
      Console.WriteLine("\nLoop 3: ");
      while ( i < 5 )
      {
         Console.WriteLine("I = {0}", i );
	 i++;
      }
   }
}