C＃-論理演算子

次の表は、C＃でサポートされているすべての論理演算子を示しています。変数 A がブール値trueを保持し、変数 B がブール値falseを保持すると仮定します-

Operator	Description	Example
&&	Called Logical AND operator. If both the operands are non zero then condition becomes true.	(A && B) is false.

Called Logical OR Operator. If any of the two operands is non zero then condition becomes true.	(A
B) is true.	!	Called Logical NOT Operator. Use to reverses the logical state of its operand. If a condition is true then Logical NOT operator will make false.

例

次の例は、C＃で使用可能なすべての論理演算子を示しています-

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();
      }
   }
}

上記のコードをコンパイルして実行すると、次の結果が生成されます-

Line 1 - Condition is true
Line 2 - Condition is true
Line 3 - Condition is not true
Line 4 - Condition is true

Csharp-logical-operators

C＃-論理演算子

例