C#逻辑运算符

using System;

namespace OperatorsAppl {

   class Program {

      static void Main(string[] args) {
         bool a = true; 
         bool b = true;

         if (a && b) {
            Console.WriteLine("Line 1 - Condition is true");
         }

         if (a || b) {
            Console.WriteLine("Line 2 - Condition is true");
         }

         /* lets change the value of  a and b */
         a = false;
         b = true;

         if (a && b) {
            Console.WriteLine("Line 3 - Condition is true");
         } else {
            Console.WriteLine("Line 3 - Condition is not true");
         }

         if (!(a && b)) {
            Console.WriteLine("Line 4 - Condition is true");
         }
         Console.ReadLine();
      }
   }
}

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