{"id":26800,"date":"2023-06-13T17:10:25","date_gmt":"2023-06-13T13:40:25","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/learning-c-after-java-5-differences-explored-5anj\/"},"modified":"2023-06-13T17:10:25","modified_gmt":"2023-06-13T13:40:25","slug":"learning-c-after-java-5-differences-explored-5anj","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/learning-c-after-java-5-differences-explored-5anj\/","title":{"rendered":"\u06cc\u0627\u062f\u06af\u06cc\u0631\u06cc \u0633\u06cc \u0634\u0627\u0631\u067e \u0628\u0639\u062f \u0627\u0632 \u062c\u0627\u0648\u0627: 5 \u062a\u0641\u0627\u0648\u062a \u06a9\u0634\u0641 \u0634\u062f\u0647"},"content":{"rendered":"<div data-article-id=\"1502884\" id=\"article-body\">\n<p>\u0634\u0628\u0627\u0647\u062a \u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u06cc \u0628\u06cc\u0646 \u062c\u0627\u0648\u0627 \u0648 \u0633\u06cc \u0634\u0627\u0631\u067e \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f &#8211; \u0647\u0631 \u062f\u0648 \u0632\u0628\u0627\u0646 \u0647\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0634\u062f\u0647 \u0628\u0627 \u0646\u062d\u0648\u06cc \u0645\u0634\u0627\u0628\u0647 \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u062a\u062d\u062a \u062a\u0623\u062b\u06cc\u0631 C \u0642\u0631\u0627\u0631 \u062f\u0627\u0631\u0646\u062f\u060c \u0627\u0645\u0627 \u062a\u0641\u0627\u0648\u062a \u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u06cc \u0646\u06cc\u0632 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.  \u062f\u0631 \u0627\u06cc\u0646 \u0648\u0628\u0644\u0627\u06af \u0645\u0627 \u0628\u0631\u062e\u06cc \u0627\u0632 \u062a\u0645\u0627\u06cc\u0632\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc \u0631\u0627 \u06a9\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u062c\u0627\u0648\u0627 \u0647\u0646\u06af\u0627\u0645 \u0627\u0646\u062a\u0642\u0627\u0644 \u0628\u0647 C# \u0628\u0627\u06cc\u062f \u0627\u0632 \u0622\u0646\u0647\u0627 \u0622\u06af\u0627\u0647 \u0628\u0627\u0634\u0646\u062f\u060c \u0628\u0631\u0631\u0633\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/learning-c-after-java-5-differences-explored-5anj\/#1_%E2%80%93_%D9%82%D9%86%D8%AF_%D9%86%D8%AD%D9%88%DB%8C\" >1 &#8211; \u0642\u0646\u062f \u0646\u062d\u0648\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/learning-c-after-java-5-differences-explored-5anj\/#2_%E2%80%93_%D8%A7%D8%B3%D8%AA%D8%AB%D9%86%D8%A7%D8%A6%D8%A7%D8%AA\" >2 &#8211; \u0627\u0633\u062a\u062b\u0646\u0627\u0626\u0627\u062a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/learning-c-after-java-5-differences-explored-5anj\/#3_%E2%80%93_IEnumerable_LINQ\" >3 &#8211; IEnumerable &#038; LINQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/learning-c-after-java-5-differences-explored-5anj\/#4_%E2%80%93_Async_%D8%A7%D9%86%D8%AA%D8%B8%D8%A7%D8%B1\" >4 &#8211; Async \/ \u0627\u0646\u062a\u0638\u0627\u0631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/learning-c-after-java-5-differences-explored-5anj\/#5_%E2%80%93_%D8%A8%D8%A7%D8%B7%D9%84_%D8%B4%D8%AF%D9%86%DB%8C\" >5 &#8211; \u0628\u0627\u0637\u0644 \u0634\u062f\u0646\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/learning-c-after-java-5-differences-explored-5anj\/#%D9%86%D8%AA%DB%8C%D8%AC%D9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"1_%E2%80%93_%D9%82%D9%86%D8%AF_%D9%86%D8%AD%D9%88%DB%8C\"><\/span>\n<p>  1 &#8211; \u0642\u0646\u062f \u0646\u062d\u0648\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0633\u0647 \u0648\u06cc\u0698\u06af\u06cc \u0632\u0628\u0627\u0646\u06cc \u0631\u0627 \u06a9\u0647 \u0633\u06cc \u0634\u0627\u0631\u067e \u0628\u0631\u0627\u06cc \u0627\u0641\u0632\u0627\u06cc\u0634 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc \u06a9\u062f \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f\u060c \u06a9\u0647 \u062f\u0631 \u062c\u0627\u0648\u0627 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f\u060c \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u0645.  \u0627\u06cc\u0646 \u0628\u0647 \u0647\u06cc\u0686 \u0648\u062c\u0647 \u06cc\u06a9 \u0644\u06cc\u0633\u062a \u062c\u0627\u0645\u0639 \u0646\u06cc\u0633\u062a.<\/p>\n<p><strong>\u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627\u06cc \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc \u0634\u062f\u0647 \u0648 \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc<\/strong><br \/>\u062f\u0631 \u0633\u06cc \u0634\u0627\u0631\u067e \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0646\u0627\u0645 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627\u06cc \u0645\u062a\u062f \u0628\u0647 \u062a\u0631\u062a\u06cc\u0628 \u062f\u0644\u062e\u0648\u0627\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.  \u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644 \u0631\u0648\u0634 \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"k\">static<\/span> <span class=\"k\">void<\/span> <span class=\"nf\">PrintHello<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span> <span class=\"n\">name<\/span><span class=\"p\">,<\/span> <span class=\"kt\">string<\/span> <span class=\"n\">surname<\/span><span class=\"p\">)<\/span> <span class=\"p\">=&gt;<\/span>\n            <span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"s\">$\"Hello, <\/span><span class=\"p\">{<\/span><span class=\"n\">name<\/span><span class=\"p\">}<\/span><span class=\"s\"> <\/span><span class=\"p\">{<\/span><span class=\"n\">surname<\/span><span class=\"p\">}<\/span><span class=\"s\">!\"<\/span><span class=\"p\">);<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0641\u0631\u0627\u062e\u0648\u0627\u0646 \u0647\u0627\u06cc \u0632\u06cc\u0631 \u0627\u0632 \u0646\u0638\u0631 \u0646\u062a\u06cc\u062c\u0647 \u06cc\u06a9\u0633\u0627\u0646 \u0647\u0633\u062a\u0646\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"nf\">PrintHello<\/span><span class=\"p\">(<\/span><span class=\"s\">\"John\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"Doe\"<\/span><span class=\"p\">);<\/span>\n<span class=\"nf\">PrintHello<\/span><span class=\"p\">(<\/span><span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"John\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">surname<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"Doe\"<\/span><span class=\"p\">);<\/span>\n<span class=\"nf\">PrintHello<\/span><span class=\"p\">(<\/span><span class=\"n\">surname<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"Doe\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"John\"<\/span><span class=\"p\">);<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0627\u06cc\u0646\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0628\u0631\u0627\u06cc \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u062a\u0639\u06cc\u06cc\u0646 \u06a9\u0646\u06cc\u062f\u060c \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"k\">static<\/span> <span class=\"k\">void<\/span> <span class=\"nf\">PrintHello<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span> <span class=\"k\">value<\/span><span class=\"p\">=<\/span><span class=\"s\">\"World\"<\/span><span class=\"p\">)<\/span> <span class=\"p\">=&gt;<\/span>\n            <span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"s\">$\"Hello, <\/span><span class=\"p\">{<\/span><span class=\"k\">value<\/span><span class=\"p\">}<\/span><span class=\"s\">!\"<\/span><span class=\"p\">);<\/span>\n\n<span class=\"k\">static<\/span> <span class=\"k\">void<\/span> <span class=\"nf\">Main<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">[]<\/span> <span class=\"n\">args<\/span><span class=\"p\">)<\/span>\n<span class=\"p\">{<\/span>\n    <span class=\"nf\">PrintHello<\/span><span class=\"p\">();<\/span>\n    <span class=\"nf\">PrintHello<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Peggy\"<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u062f\u0631\u06cc\u0627\u0641\u062a\/\u062a\u0646\u0638\u06cc\u0645 \u062e\u0648\u0627\u0635<\/strong><\/p>\n<p>\u06cc\u06a9 \u0648\u06cc\u0698\u06af\u06cc \u062f\u0631 \u0633\u06cc \u0634\u0627\u0631\u067e \u0639\u0636\u0648\u06cc \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0647\u0645\u0647 \u06a9\u0627\u0631\u0647 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc\u060c \u062a\u063a\u06cc\u06cc\u0631 \u06cc\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u0642\u062f\u0627\u0631 \u06cc\u06a9 \u0641\u06cc\u0644\u062f \u062e\u0635\u0648\u0635\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f.  \u0627\u06cc\u0646 \u06cc\u06a9 \u0622\u0646\u0627\u0644\u0648\u06af \u0627\u0632 \u06af\u06cc\u0631\u0646\u062f\u0647\/\u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u0646\u062f\u0647 \u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644\u06cc \u062f\u0631 \u062c\u0627\u0648\u0627 \u0628\u0627 \u06cc\u06a9 \u0646\u062d\u0648 \u062e\u0627\u0635 \u0648 \u06af\u0632\u06cc\u0646\u0647 \u0627\u06cc \u0628\u0631\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631 \u0622\u0646\u0647\u0627 \u0627\u0633\u062a.<\/p>\n<p>\u0645\u062b\u0627\u0644 \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"k\">class<\/span> <span class=\"nc\">Student<\/span>\n<span class=\"p\">{<\/span>\n    <span class=\"k\">public<\/span> <span class=\"kt\">string<\/span> <span class=\"n\">Name<\/span> <span class=\"p\">{<\/span><span class=\"k\">get<\/span><span class=\"p\">;<\/span> <span class=\"n\">init<\/span><span class=\"p\">;}<\/span>\n\n    <span class=\"k\">public<\/span> <span class=\"kt\">string<\/span><span class=\"p\">?<\/span> <span class=\"n\">Department<\/span> <span class=\"p\">{<\/span><span class=\"k\">get<\/span><span class=\"p\">;<\/span> <span class=\"k\">set<\/span><span class=\"p\">;}<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0645\u0627 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0634\u062f\u0647 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0631\u0627 \u0627\u0639\u0644\u0627\u0645 \u0645\u06cc \u06a9\u0646\u06cc\u0645.  \u0627\u06cc\u0646 <code>Name<\/code> \u062e\u0627\u0635\u06cc\u062a \u062f\u0631 \u0645\u0639\u0631\u0636 \u0646\u0645\u0627\u06cc\u0634 \u0642\u0631\u0627\u0631 \u0645\u06cc \u062f\u0647\u062f \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u0646\u062f\u0647 \u0627\u06cc \u06a9\u0647 \u0641\u0642\u0637 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u0648\u0644\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0645\u062a\u062f \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0633\u062a (<code>init<\/code>).  \u0627\u06cc\u0646 <code>Department<\/code> \u0648\u06cc\u0698\u06af\u06cc \u0647\u0645 \u06cc\u06a9 \u06af\u06cc\u0631\u0646\u062f\u0647 \u0648 \u0647\u0645 \u06cc\u06a9 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u0646\u062f\u0647 \u0631\u0627 \u062f\u0631 \u0645\u0639\u0631\u0636 \u0646\u0645\u0627\u06cc\u0634 \u0645\u06cc \u06af\u0630\u0627\u0631\u062f.  \u0633\u067e\u0633 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0647 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0647 \u0648 \u0645\u0637\u0627\u0628\u0642 \u0622\u0646 \u0627\u0635\u0644\u0627\u062d \u06a9\u0646\u06cc\u0645:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"kt\">var<\/span> <span class=\"n\">student<\/span> <span class=\"p\">=<\/span> <span class=\"k\">new<\/span> <span class=\"n\">Student<\/span> <span class=\"p\">{<\/span> <span class=\"n\">Name<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"Alice\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Department<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"Computer Science\"<\/span><span class=\"p\">};<\/span>\n<span class=\"n\">student<\/span><span class=\"p\">.<\/span><span class=\"n\">Department<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"Chemistry\"<\/span><span class=\"p\">;<\/span>\n<span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"n\">student<\/span><span class=\"p\">.<\/span><span class=\"n\">Department<\/span><span class=\"p\">);<\/span>\n<span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"n\">student<\/span><span class=\"p\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">);<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>Null-Conditional (Elvis) \u0648 \u0639\u0645\u0644\u06af\u0631 Null-Coalescing<\/strong><\/p>\n<p>\u0628\u0631\u062e\u0644\u0627\u0641 \u062c\u0627\u0648\u0627\u060c \u0633\u06cc \u0634\u0627\u0631\u067e \u0627\u0632 \u0627\u0644\u0648\u06cc\u0633 (<code>?.<\/code>) \u0648 \u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc Null-Coalescing (<code>??<\/code>).  \u0647\u062f\u0641 \u0627\u06cc\u0646 \u0639\u0645\u0644\u06af\u0631\u0647\u0627 \u0633\u0627\u062f\u0647 \u06a9\u0631\u062f\u0646 \u06a9\u0627\u0631 \u0628\u0627 \u0645\u0642\u0627\u062f\u06cc\u0631 nullable \u0627\u0633\u062a.  \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0627\u06cc\u0646 \u0628\u0644\u0648\u06a9 \u06a9\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"kt\">string<\/span> <span class=\"n\">department<\/span> <span class=\"p\">=<\/span> <span class=\"k\">null<\/span><span class=\"p\">;<\/span>\n<span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"n\">student<\/span> <span class=\"p\">!=<\/span> <span class=\"k\">null<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\n    <span class=\"n\">department<\/span> <span class=\"p\">=<\/span> <span class=\"n\">student<\/span><span class=\"p\">.<\/span><span class=\"n\">Department<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0642\u0627\u0628\u0644 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u0628\u0627:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"kt\">string<\/span> <span class=\"n\">department<\/span> <span class=\"p\">=<\/span> <span class=\"n\">student<\/span><span class=\"p\">?.<\/span><span class=\"n\">Department<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0639\u0645\u0644\u06af\u0631 \u0646\u0648\u0644 \u0627\u062f\u063a\u0627\u0645 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0634\u0648\u062f <code>val != null ? val : defaultValue<\/code> \u0628\u06cc\u0627\u0646 \u0628\u0627 <code>val ?? defaultValue<\/code>.  \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u062a\u0631\u06a9\u06cc\u0628 \u0628\u0627 \u0639\u0645\u0644\u06af\u0631 Elvis \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"n\">student<\/span><span class=\"p\">?.<\/span><span class=\"n\">Department<\/span> <span class=\"p\">??<\/span> <span class=\"s\">\"Value not known\"<\/span><span class=\"p\">);<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"2_%E2%80%93_%D8%A7%D8%B3%D8%AA%D8%AB%D9%86%D8%A7%D8%A6%D8%A7%D8%AA\"><\/span>\n<p>  2 &#8211; \u0627\u0633\u062a\u062b\u0646\u0627\u0626\u0627\u062a<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u062c\u0627\u0648\u0627\u060c \u0628\u0647 \u0627\u0635\u0637\u0644\u0627\u062d \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0686\u06a9 \u0634\u062f\u0647 \u0648 \u0628\u062f\u0648\u0646 \u0639\u0644\u0627\u0645\u062a \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.  \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0634\u062f\u0647 \u062f\u0631 \u0632\u0645\u0627\u0646 \u06a9\u0627\u0645\u067e\u0627\u06cc\u0644 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u0634\u0648\u0646\u062f \u0648 \u0627\u06af\u0631 \u0627\u0632 \u0631\u0648\u0634\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u06cc\u06a9 \u0627\u0633\u062a\u062b\u0646\u0627 \u0639\u0644\u0627\u0645\u062a \u0632\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0627\u06cc\u062f \u0622\u0646 \u0631\u0627 \u062f\u0631 \u06a9\u062f \u062e\u0648\u062f \u067e\u0631\u062f\u0627\u0632\u0634 \u06a9\u0646\u06cc\u062f\u060c \u062f\u0631 \u063a\u06cc\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u06a9\u0627\u0645\u067e\u0627\u06cc\u0644 \u0646\u0645\u06cc \u0634\u0648\u062f.  \u0627\u0632 \u0637\u0631\u0641 \u062f\u06cc\u06af\u0631 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0628\u062f\u0648\u0646 \u0639\u0644\u0627\u0645\u062a \u0646\u0628\u0627\u06cc\u062f \u062f\u0631 \u06a9\u062f \u067e\u0631\u062f\u0627\u0632\u0634 \u0634\u0648\u0646\u062f.  \u0627\u06af\u0631 \u06af\u06cc\u0631 \u0646\u06cc\u0627\u0648\u0631\u0646\u062f\u060c \u0646\u062e\u06cc \u0631\u0627 \u06a9\u0647 \u0631\u0648\u06cc \u0622\u0646 \u067e\u0631\u062a\u0627\u0628 \u0645\u06cc \u06a9\u0646\u0646\u062f \u062e\u0631\u0627\u0628 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<p>C# \u0645\u0641\u0647\u0648\u0645 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0634\u062f\u0647 \u0631\u0627 \u0646\u062f\u0627\u0631\u062f \u0648 \u0627\u06cc\u0646 \u0647\u0645\u06cc\u0634\u0647 \u0628\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0648 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u06cc\u06a9 \u0627\u0633\u062a\u062b\u0646\u0627 \u0631\u0627 \u067e\u0631\u062f\u0627\u0632\u0634 \u06a9\u0646\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_%E2%80%93_IEnumerable_LINQ\"><\/span>\n<p>  3 &#8211; IEnumerable &#038; LINQ<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0631\u0627\u0628\u0637 IEnumerable \u062f\u0631 \u0633\u06cc \u0634\u0627\u0631\u067e \u0634\u0628\u06cc\u0647 \u0631\u0627\u0628\u0637 Iterable \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u062a.  \u0628\u0631\u0627\u06cc \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0627\u0632 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062a\u0646\u0628\u0644 \u0628\u0631 \u0631\u0648\u06cc \u0627\u0634\u06cc\u0627\u0621 \u062a\u06a9\u0631\u0627\u0631\u067e\u0630\u06cc\u0631\u060c \u062c\u0627\u0648\u0627 8 \u06cc\u06a9 Stream API \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0631\u0627 \u0645\u0639\u0631\u0641\u06cc \u0645\u06cc \u06a9\u0646\u062f.  \u062f\u0631 \u0633\u06cc \u0634\u0627\u0631\u067e\u060c \u0639\u0645\u0644\u06a9\u0631\u062f \u0645\u0634\u0627\u0628\u0647 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0627\u0632 \u0637\u0631\u06cc\u0642 \u06a9\u0644\u0627\u0633 Enumerable \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0645\u062b\u0627\u0644\u06cc \u0627\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634 Where \u0627\u0632 Enumberable \u0628\u0631\u0627\u06cc \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0627\u0639\u062f\u0627\u062f \u0632\u0648\u062c \u062f\u0631 \u0633\u06cc \u0634\u0627\u0631\u067e \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"n\">IEnumerable<\/span><span class=\"p\">&lt;<\/span><span class=\"kt\">int<\/span><span class=\"p\">&gt;<\/span> <span class=\"n\">evenNums<\/span> <span class=\"p\">=<\/span> <span class=\"n\">Enumerable<\/span><span class=\"p\">.<\/span><span class=\"nf\">Range<\/span><span class=\"p\">(<\/span><span class=\"m\">1<\/span><span class=\"p\">,<\/span> <span class=\"m\">1000<\/span><span class=\"p\">)<\/span>\n                <span class=\"p\">.<\/span><span class=\"nf\">Take<\/span><span class=\"p\">(<\/span><span class=\"m\">5<\/span><span class=\"p\">)<\/span>\n                <span class=\"p\">.<\/span><span class=\"nf\">Where<\/span><span class=\"p\">(<\/span><span class=\"n\">num<\/span> <span class=\"p\">=&gt;<\/span> <span class=\"n\">num<\/span> <span class=\"p\">%<\/span> <span class=\"m\">2<\/span> <span class=\"p\">==<\/span> <span class=\"m\">0<\/span><span class=\"p\">);<\/span>\n\n<span class=\"k\">foreach<\/span> <span class=\"p\">(<\/span><span class=\"kt\">var<\/span> <span class=\"n\">num<\/span> <span class=\"k\">in<\/span> <span class=\"n\">evenNums<\/span><span class=\"p\">)<\/span>\n<span class=\"p\">{<\/span>\n    <span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"n\">num<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u062f\u0631 \u062c\u0627\u0648\u0627\u060c \u0647\u0645\u0627\u0646 \u06a9\u062f \u0628\u0647 \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"n\">List<\/span><span class=\"p\">&lt;<\/span><span class=\"n\">Integer<\/span><span class=\"p\">&gt;<\/span> <span class=\"n\">evenNums<\/span> <span class=\"p\">=<\/span> <span class=\"n\">Stream<\/span><span class=\"p\">.<\/span><span class=\"nf\">iterate<\/span><span class=\"p\">(<\/span><span class=\"m\">1<\/span><span class=\"p\">,<\/span> <span class=\"n\">i<\/span> <span class=\"p\">-&gt;<\/span> <span class=\"n\">i<\/span> <span class=\"p\">+<\/span> <span class=\"m\">1<\/span><span class=\"p\">)<\/span>\n        <span class=\"p\">.<\/span><span class=\"nf\">limit<\/span><span class=\"p\">(<\/span><span class=\"m\">5<\/span><span class=\"p\">)<\/span>\n        <span class=\"p\">.<\/span><span class=\"nf\">filter<\/span><span class=\"p\">(<\/span><span class=\"n\">num<\/span> <span class=\"p\">-&gt;<\/span> <span class=\"n\">num<\/span> <span class=\"p\">%<\/span> <span class=\"m\">2<\/span> <span class=\"p\">==<\/span> <span class=\"m\">0<\/span><span class=\"p\">)<\/span>\n        <span class=\"p\">.<\/span><span class=\"nf\">toList<\/span><span class=\"p\">();<\/span>\n\n<span class=\"n\">evenNums<\/span><span class=\"p\">.<\/span><span class=\"nf\">forEach<\/span><span class=\"p\">(<\/span><span class=\"n\">System<\/span><span class=\"p\">.<\/span><span class=\"k\">out<\/span><span class=\"p\">::<\/span><span class=\"n\">println<\/span><span class=\"p\">);<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u062a\u062f\u0647\u0627\u06cc \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0645\u062b\u0627\u0644 \u0628\u0627\u0644\u0627 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u0633\u06cc \u0634\u0627\u0631\u067e \u0642\u0627\u0628\u0644\u06cc\u062a \u0647\u0627\u06cc Query-Integrated Language (LINQ) \u0631\u0627 \u0646\u06cc\u0632 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc \u06a9\u0646\u062f.  \u0627\u06cc\u0646 \u06cc\u06a9 \u0641\u0646\u0627\u0648\u0631\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0627\u0632 \u0632\u0628\u0627\u0646 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0628\u0631 \u0631\u0648\u06cc \u0627\u0634\u06cc\u0627\u0621 IEnumberable \u0628\u0647 \u0637\u0648\u0631 \u0645\u0633\u062a\u0642\u06cc\u0645 \u062f\u0631 C# \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644 \u0628\u0631\u0627\u06cc \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0627\u0639\u062f\u0627\u062f \u0632\u0648\u062c \u062f\u0631 \u06cc\u06a9 \u0646\u062d\u0648 \u0628\u0647 \u0633\u0628\u06a9 LINQ \u0628\u0647 \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"kt\">var<\/span> <span class=\"n\">nums<\/span> <span class=\"p\">=<\/span> <span class=\"k\">new<\/span> <span class=\"n\">List<\/span><span class=\"p\">&lt;<\/span><span class=\"kt\">int<\/span><span class=\"p\">&gt;<\/span> <span class=\"p\">{<\/span> <span class=\"m\">1<\/span><span class=\"p\">,<\/span> <span class=\"m\">2<\/span><span class=\"p\">,<\/span> <span class=\"m\">3<\/span><span class=\"p\">,<\/span> <span class=\"m\">4<\/span><span class=\"p\">,<\/span> <span class=\"m\">5<\/span> <span class=\"p\">};<\/span>\n\n<span class=\"n\">IEnumerable<\/span><span class=\"p\">&lt;<\/span><span class=\"kt\">int<\/span><span class=\"p\">&gt;<\/span> <span class=\"n\">evenNums<\/span> <span class=\"p\">=<\/span> <span class=\"k\">from<\/span> <span class=\"n\">num<\/span> <span class=\"k\">in<\/span> <span class=\"n\">nums<\/span>\n                                <span class=\"k\">where<\/span> <span class=\"n\">num<\/span> <span class=\"p\">%<\/span> <span class=\"m\">2<\/span> <span class=\"p\">==<\/span> <span class=\"m\">0<\/span>\n                                <span class=\"k\">select<\/span> <span class=\"n\">num<\/span><span class=\"p\">;<\/span>\n\n<span class=\"k\">foreach<\/span> <span class=\"p\">(<\/span><span class=\"kt\">var<\/span> <span class=\"n\">num<\/span> <span class=\"k\">in<\/span> <span class=\"n\">evenNums<\/span><span class=\"p\">)<\/span>\n<span class=\"p\">{<\/span>\n    <span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"n\">num<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"4_%E2%80%93_Async_%D8%A7%D9%86%D8%AA%D8%B8%D8%A7%D8%B1\"><\/span>\n<p>  4 &#8211; Async \/ \u0627\u0646\u062a\u0638\u0627\u0631<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0633\u06cc \u0634\u0627\u0631\u067e \u06a9\u0644\u0645\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc async\/wait \u0631\u0627 \u0628\u0631\u0627\u06cc \u0646\u0648\u0634\u062a\u0646 \u06a9\u062f\u0647\u0627\u06cc \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0628\u0647 \u0634\u06cc\u0648\u0647\u200c\u0627\u06cc \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0648 \u0645\u062a\u0648\u0627\u0644\u06cc\u200c\u062a\u0631 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u062f.  \u0645\u062b\u0627\u0644 \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f\u060c \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0627 \u06cc\u06a9 \u0631\u0648\u0634 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0631\u0627 \u0627\u0639\u0644\u0627\u0645 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u06cc\u06a9 \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u062a\u0635\u0627\u062f\u0641\u06cc \u0631\u0627 \u067e\u0633 \u0627\u0632 2 \u062b\u0627\u0646\u06cc\u0647 \u062a\u0627\u062e\u06cc\u0631 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f.  \u0627\u0628\u062a\u062f\u0627 \u0645\u062a\u062f \u0631\u0627 \u062f\u0648 \u0628\u0627\u0631 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u062a\u0627 \u062f\u0648 \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u062a\u0635\u0627\u062f\u0641\u06cc \u062a\u0648\u0644\u06cc\u062f \u06a9\u0646\u06cc\u0645 \u0648 \u0633\u067e\u0633 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0628\u0627\u06cc\u062f \u0645\u062c\u0645\u0648\u0639 \u0631\u0627 \u0686\u0627\u067e \u06a9\u0646\u06cc\u0645 \u0645\u0646\u062a\u0638\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0645\u06cc \u0645\u0627\u0646\u06cc\u0645:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"k\">static<\/span> <span class=\"k\">async<\/span> <span class=\"n\">Task<\/span><span class=\"p\">&lt;<\/span><span class=\"kt\">int<\/span><span class=\"p\">&gt;<\/span> <span class=\"nf\">RandomIntAsync<\/span><span class=\"p\">()<\/span>\n<span class=\"p\">{<\/span>\n    <span class=\"k\">await<\/span> <span class=\"n\">Task<\/span><span class=\"p\">.<\/span><span class=\"nf\">Delay<\/span><span class=\"p\">(<\/span><span class=\"n\">TimeSpan<\/span><span class=\"p\">.<\/span><span class=\"nf\">FromSeconds<\/span><span class=\"p\">(<\/span><span class=\"m\">2<\/span><span class=\"p\">));<\/span>\n    <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">Random<\/span><span class=\"p\">().<\/span><span class=\"nf\">Next<\/span><span class=\"p\">(<\/span><span class=\"m\">0<\/span><span class=\"p\">,<\/span> <span class=\"m\">100<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"k\">static<\/span> <span class=\"k\">async<\/span> <span class=\"n\">Task<\/span> <span class=\"nf\">Main<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">[]<\/span> <span class=\"n\">args<\/span><span class=\"p\">)<\/span>\n<span class=\"p\">{<\/span>\n    <span class=\"n\">Task<\/span><span class=\"p\">&lt;<\/span><span class=\"kt\">int<\/span><span class=\"p\">&gt;<\/span> <span class=\"n\">val1<\/span> <span class=\"p\">=<\/span> <span class=\"nf\">RandomIntAsync<\/span><span class=\"p\">();<\/span>\n    <span class=\"n\">Task<\/span><span class=\"p\">&lt;<\/span><span class=\"kt\">int<\/span><span class=\"p\">&gt;<\/span> <span class=\"n\">val2<\/span> <span class=\"p\">=<\/span> <span class=\"nf\">RandomIntAsync<\/span><span class=\"p\">();<\/span>\n    <span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"k\">await<\/span> <span class=\"n\">val1<\/span> <span class=\"p\">+<\/span> <span class=\"k\">await<\/span> <span class=\"n\">val2<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u06cc\u0646 \u0648\u0628\u0644\u0627\u06af \u067e\u0633\u062a \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0645\u0646 \u062a\u0641\u0627\u0648\u062a \u0647\u0627\u06cc \u0646\u062d\u0648\u0647 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u062f\u0631 C# \u0648 \u062c\u0627\u0648\u0627 \u0631\u0627 \u0628\u0627 \u062c\u0632\u0626\u06cc\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u06a9\u0646\u0645.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_%E2%80%93_%D8%A8%D8%A7%D8%B7%D9%84_%D8%B4%D8%AF%D9%86%DB%8C\"><\/span>\n<p>  5 &#8211; \u0628\u0627\u0637\u0644 \u0634\u062f\u0646\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0633\u06cc \u0634\u0627\u0631\u067e \u0647\u0645\u0647 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0646\u0648\u0639 \u0645\u0642\u062f\u0627\u0631 \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u06cc\u0634 \u0641\u0631\u0636 \u063a\u06cc\u0631 \u0642\u0627\u0628\u0644 \u062a\u0647\u06cc \u062f\u0631 \u0646\u0638\u0631 \u0645\u06cc \u06af\u06cc\u0631\u062f.  \u0628\u0631\u0627\u06cc \u0627\u062c\u0627\u0632\u0647 \u062f\u0627\u062f\u0646 \u0628\u0647 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u062a\u0647\u06cc\u060c \u0646\u0648\u0639 \u0628\u0627\u06cc\u062f \u0628\u0647 \u0637\u0648\u0631 \u0635\u0631\u06cc\u062d \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 nullable \u0639\u0644\u0627\u0645\u062a \u06af\u0630\u0627\u0631\u06cc \u0634\u0648\u062f\u060c \u0628\u0647 \u0633\u0627\u062f\u06af\u06cc \u0628\u0627\u06cc\u062f \u06cc\u06a9 \u0639\u0644\u0627\u0645\u062a \u0633\u0648\u0627\u0644 \u0628\u0647 \u062a\u0639\u0631\u06cc\u0641 \u0646\u0648\u0639 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 &#8220;int?&#8221;).  \u0627\u06cc\u0646 \u0628\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0645\u0648\u0642\u0639\u06cc\u062a \u0647\u0627\u06cc\u06cc \u0631\u0627 \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062f\u0627\u062f\u0647 \u0647\u0627 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0647 \u06cc\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0646\u0634\u062f\u0647 \u0628\u0627\u0634\u0646\u062f \u0631\u0627 \u067e\u0631\u062f\u0627\u0632\u0634 \u06a9\u0646\u0646\u062f\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight csharp\"><code><span class=\"k\">class<\/span> <span class=\"nc\">Person<\/span>\n<span class=\"p\">{<\/span>\n    <span class=\"k\">public<\/span> <span class=\"kt\">string<\/span> <span class=\"n\">Name<\/span> <span class=\"p\">{<\/span> <span class=\"k\">get<\/span><span class=\"p\">;<\/span> <span class=\"n\">init<\/span><span class=\"p\">;<\/span> <span class=\"p\">}<\/span>\n\n    <span class=\"k\">public<\/span> <span class=\"kt\">int<\/span><span class=\"p\">?<\/span> <span class=\"n\">Age<\/span> <span class=\"p\">{<\/span> <span class=\"k\">get<\/span><span class=\"p\">;<\/span> <span class=\"n\">init<\/span><span class=\"p\">;<\/span> <span class=\"p\">}<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"k\">static<\/span> <span class=\"k\">async<\/span> <span class=\"n\">Task<\/span> <span class=\"nf\">Main<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">[]<\/span> <span class=\"n\">args<\/span><span class=\"p\">)<\/span>\n<span class=\"p\">{<\/span>\n    <span class=\"kt\">var<\/span> <span class=\"n\">person<\/span> <span class=\"p\">=<\/span> <span class=\"k\">new<\/span> <span class=\"n\">Person<\/span> <span class=\"p\">{<\/span> <span class=\"n\">Name<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"Bob\"<\/span><span class=\"p\">};<\/span>\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"n\">person<\/span><span class=\"p\">.<\/span><span class=\"n\">Age<\/span> <span class=\"p\">==<\/span> <span class=\"k\">null<\/span><span class=\"p\">)<\/span>\n    <span class=\"p\">{<\/span>\n        <span class=\"n\">Console<\/span><span class=\"p\">.<\/span><span class=\"nf\">WriteLine<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Age not specified.\"<\/span><span class=\"p\">);<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0627\u0646\u0648\u0627\u0639 \u0645\u0642\u0627\u062f\u06cc\u0631 nullable\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0646\u0648\u0639 \u0645\u0631\u062c\u0639 nullable \u0631\u0627 \u0645\u0634\u062e\u0635 \u06a9\u0646\u06cc\u062f\u060c \u062f\u0631\u0633\u062a \u0645\u0627\u0646\u0646\u062f \u0622\u0646\u0686\u0647 \u062f\u0631 \u0628\u0627\u0644\u0627 \u062f\u0631 \u0645\u062b\u0627\u0644 \u06a9\u0644\u0627\u0633 Student \u0627\u0646\u062c\u0627\u0645 \u062f\u0627\u062f\u06cc\u0645 \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0631\u0634\u062a\u0647 Department \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 nullable \u0627\u0639\u0644\u0627\u0645 \u06a9\u0631\u062f\u06cc\u0645.  \u0627\u0632 \u0644\u062d\u0627\u0638 \u062a\u0627\u0631\u06cc\u062e\u06cc \u062f\u0631 \u0633\u06cc \u0634\u0627\u0631\u067e\u060c \u0647\u0645\u0647 \u0645\u0631\u0627\u062c\u0639 \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u06cc\u0634 \u0641\u0631\u0636 nullable \u0647\u0633\u062a\u0646\u062f.  \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0628\u0627 \u0634\u0631\u0648\u0639 \u0628\u0627 C# 8\u060c \u0641\u0631\u0636 \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0645\u0631\u0627\u062c\u0639 \u0628\u0647 \u0637\u0648\u0631 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u063a\u06cc\u0631 \u0642\u0627\u0628\u0644 \u062a\u0647\u06cc \u0647\u0633\u062a\u0646\u062f\u060c \u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u0647 \u0635\u0631\u0627\u062d\u062a \u0628\u06cc\u0627\u0646 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f\u060c \u0645\u0634\u0627\u0628\u0647 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&hellip;<\/p>\n","protected":false},"author":2,"featured_media":26801,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-26800","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dev"],"_links":{"self":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/26800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/comments?post=26800"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/26800\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/26801"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=26800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=26800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=26800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}