BasicKnowledgeCSharp/LessonsAndTasks/Lesson 42 - Оператор условного NULL/Program.cs
Dvurechensky bf6a7c2b4e 1.1
2025-05-12 02:48:54 +03:00

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/*
* Author: Nikolay Dvurechensky
* Site: https://www.dvurechensky.pro/
* Gmail: dvurechenskysoft@gmail.com
* Last Updated: 12 мая 2025 02:47:11
* Version: 1.0.3
*/
using System;
using System.Linq;
/*
* Оператор условного NULL ?.
*/
class Program
{
static int[] GetArray()
{
int[] myArray = null;
return myArray;
}
static void Main()
{
int[] myArray = GetArray();
// ?. - проверяет равна ли сумма null или не равна
// ?? - оператор объединения с null
Console.WriteLine(myArray?.Sum() ?? -1);
Console.ReadKey();
}
}