http://nfex.ru/index.php?action=history&feed=atom&title=Csharp%2FCSharp_Tutorial%2FData_Structure%2FArray_Exist_Find 2026-04-29T22:02:47Z История изменений этой страницы в вики MediaWiki 1.30.0 http://nfex.ru/index.php?title=Csharp/CSharp_Tutorial/Data_Structure/Array_Exist_Find&diff=5589&oldid=prev 2010-05-26T15:31:53Z

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<p>1 версия</p> <p><b>Новая страница</b></p><div>==Demonstrate Predicate delegate==<br /> <br /> <br /> <br /> &lt;source lang=&quot;csharp&quot;&gt;using System; <br /> <br /> class MainClass { <br /> <br /> static bool isCriteria(int v) { <br /> if(v &gt; 1) <br /> return true; <br /> return false; <br /> } <br /> <br /> public static void Main() { <br /> int[] nums = { 1, 4, -1, 5, -9 }; <br /> <br /> Console.Write(&quot;Contents of nums: &quot;); <br /> foreach(int i in nums) <br /> Console.Write(i + &quot; &quot;); <br /> Console.WriteLine(); <br /> <br /> if(Array.Exists(nums, isCriteria)) { <br /> Console.WriteLine(&quot;nums contains a negative value.&quot;); <br /> <br /> // Now, find first negative value. <br /> int x = Array.Find(nums, isCriteria); <br /> Console.WriteLine(&quot;First negative value is : &quot; + x); <br /> } <br /> } <br /> }&lt;/source&gt;<br /> &lt;pre class=codeResult&gt;Contents of nums: 1 4 -1 5 -9<br /> nums contains a negative value.<br /> First negative value is : 4&lt;/pre&gt;</div>

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