{"id":773,"date":"2025-04-21T14:27:02","date_gmt":"2025-04-21T06:27:02","guid":{"rendered":"https:\/\/www.hyy.net\/?p=773"},"modified":"2025-04-21T14:27:02","modified_gmt":"2025-04-21T06:27:02","slug":"csharp-record","status":"publish","type":"post","link":"https:\/\/diji.net\/?p=773","title":{"rendered":"\u89e3\u5bc6 C# \u4e2d\u7684\u8bb0\u5f55\u7c7b\u578b\uff1a\u9762\u5411\u73b0\u4ee3\u5e94\u7528\u7684\u4e0d\u53ef\u53d8\u8bbe\u8ba1"},"content":{"rendered":"<p>\u89e3\u5bc6 C# \u4e2d\u7684\u8bb0\u5f55\u7c7b\u578b\uff1a\u9762\u5411\u73b0\u4ee3\u5e94\u7528\u7684\u4e0d\u53ef\u53d8\u8bbe\u8ba1<\/p>\n<p>C# \u4e00\u76f4\u4ee5\u6765\u4ee5\u5176\u5e73\u8861\u7684\u7279\u6027\u81ea\u8c6a\u2014\u2014\u5b83\u672c\u8d28\u4e0a\u662f\u9762\u5411\u5bf9\u8c61\u7684\uff0c\u4f46\u4e5f\u7a33\u6b65\u5730\u878d\u5165\u4e86\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6784\u9020\u3002\u968f\u7740 C# 9 \u5f15\u5165\u8bb0\u5f55\u7c7b\u578b\uff08Record\uff09\uff0c\u5e76\u4e14\u5728\u540e\u7eed\u7248\u672c\u4e2d\uff08\u5305\u62ec C# 14\uff09\u4e0d\u65ad\u53d1\u5c55\uff0c\u5f00\u53d1\u8005\u83b7\u5f97\u4e86\u4e00\u4e2a\u5f3a\u5927\u7684\u65b0\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6700\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u5efa\u6a21\u4e0d\u53ef\u53d8\u6570\u636e\u3002\u4f46\u8bb0\u5f55\u7c7b\u578b\u4e0d\u4ec5\u4ec5\u662f\u8bed\u6cd5\u7cd6\uff0c\u5b83\u80cc\u540e\u5e26\u6765\u4e86\u5bf9\u503c\u8bed\u4e49\u3001\u76f8\u7b49\u6027\u548c\u6570\u636e\u5efa\u6a21\u65b9\u5f0f\u7684\u6df1\u523b\u8303\u5f0f\u8f6c\u53d8\u3002<\/p>\n<p>\u672c\u6587\u5c06\u5e26\u4f60\u6df1\u5165\u4e86\u89e3 C# \u4e2d\u8bb0\u5f55\u7c7b\u578b\u7684\u4f7f\u7528\uff0c\u4ece\u5176\u8bed\u4e49\u3001\u529f\u80fd\u5230\u4e0e\u4f20\u7edf\u7c7b\u548c\u7ed3\u6784\u4f53\u7684\u533a\u522b\u3002\u65e0\u8bba\u4f60\u662f\u5728\u5904\u7406 DTO\uff08\u6570\u636e\u4f20\u8f93\u5bf9\u8c61\uff09\u3001\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\uff08DDD\uff09\u5b9e\u4f53\uff0c\u8fd8\u662f\u6784\u5efa\u51fd\u6570\u5f0f\u7ba1\u9053\uff0c\u8bb0\u5f55\u7c7b\u578b\u90fd\u80fd\u63d0\u4f9b\u4e00\u79cd\u7b80\u6d01\u800c\u8868\u8fbe\u529b\u5f3a\u7684\u6570\u636e\u5efa\u6a21\u65b9\u5f0f\uff0c\u7b80\u5316\u5e76\u63d0\u5347\u4f60\u7684\u4ee3\u7801\u8d28\u91cf\u3002<\/p>\n<h2>\u4ec0\u4e48\u662f\u8bb0\u5f55\u7c7b\u578b\uff1f<\/h2>\n<p>\u4ece\u672c\u8d28\u4e0a\u8bb2\uff0c\u8bb0\u5f55\u7c7b\u578b\u662f\u4e00\u4e2a\u5f15\u7528\u7c7b\u578b\uff0c\u5b83\u91c7\u7528\u57fa\u4e8e\u503c\u7684\u76f8\u7b49\u8bed\u4e49\u3002\u8fd9\u610f\u5473\u7740\u4e24\u4e2a\u6570\u636e\u76f8\u540c\u7684\u8bb0\u5f55\u5b9e\u4f8b\u88ab\u8ba4\u4e3a\u662f\u76f8\u7b49\u7684\uff0c\u800c\u4e0d\u7ba1\u5b83\u4eec\u5728\u5185\u5b58\u4e2d\u662f\u5426\u6307\u5411\u76f8\u540c\u7684\u5f15\u7528\u3002<\/p>\n<p>\u4f20\u7edf\u4e0a\uff0cC# \u4e2d\u7684\u5f15\u7528\u7c7b\u578b\uff08\u7c7b\uff09\u9ed8\u8ba4\u4f7f\u7528\u5f15\u7528\u76f8\u7b49\u3002\u8fd9\u610f\u5473\u7740\uff0c\u53ea\u6709\u5f53\u4e24\u4e2a\u5bf9\u8c61\u6307\u5411\u76f8\u540c\u7684\u5185\u5b58\u5730\u5740\u65f6\uff0c\u5b83\u4eec\u624d\u88ab\u8ba4\u4e3a\u662f\u76f8\u7b49\u7684\u3002\u800c\u8bb0\u5f55\u7c7b\u578b\u6539\u53d8\u4e86\u8fd9\u4e00\u70b9\uff0c\u901a\u8fc7\u6bd4\u8f83\u5bf9\u8c61\u7684\u503c\u6765\u8fdb\u884c\u76f8\u7b49\u6027\u5224\u65ad\u2014\u2014\u8fd9\u4f7f\u5f97\u8bb0\u5f55\u7c7b\u578b\u975e\u5e38\u9002\u5408\u7528\u4e8e\u6570\u636e\u4f20\u8f93\u3001\u72b6\u6001\u5efa\u6a21\u4ee5\u53ca\u8868\u793a\u4e0d\u53ef\u53d8\u5b9e\u4f53\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>public record User(string Name, int Age);\n\nvar u1 = new User(&quot;Alice&quot;, 30);\nvar u2 = new User(&quot;Alice&quot;, 30);\n\nConsole.WriteLine(u1 == u2); \/\/ True \u2014 \u57fa\u4e8e\u503c\u7684\u76f8\u7b49\u6027<\/code><\/pre>\n<p>\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u5982\u679c User \u662f\u4e00\u4e2a\u7c7b\uff0c\u6bd4\u8f83\u7ed3\u679c\u4f1a\u8fd4\u56de False\uff0c\u56e0\u4e3a\u5b83\u4eec\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u5f15\u7528\u3002\u8fd9\u79cd\u884c\u4e3a\u662f\u6709\u610f\u4e3a\u4e4b\uff0c\u5e76\u4e14\u662f\u4e00\u79cd\u5f3a\u6709\u529b\u7684\u8f6c\u53d8\uff0c\u4f7f C# \u66f4\u52a0\u8d34\u8fd1 F# \u7b49\u51fd\u6570\u5f0f\u7f16\u7a0b\u8bed\u8a00\uff0c\u5728\u8fd9\u4e9b\u8bed\u8a00\u4e2d\uff0c\u4e0d\u53ef\u53d8\u6027\u548c\u7ed3\u6784\u76f8\u7b49\u6027\u662f\u9ed8\u8ba4\u7684\u3002<\/p>\n<h2>\u8bb0\u5f55\u7c7b\u578b\u7684\u5206\u7c7b\uff1a\u4f4d\u7f6e\u8bb0\u5f55\u4e0e\u540d\u4e49\u8bb0\u5f55<\/h2>\n<p>C# \u652f\u6301\u4e24\u79cd\u4e3b\u8981\u7684\u8bb0\u5f55\u7c7b\u578b\u5f62\u5f0f\uff1a<\/p>\n<ol>\n<li>\u4f4d\u7f6e\u8bb0\u5f55\uff08Positional Records\uff09<br \/>\n\u4f4d\u7f6e\u8bb0\u5f55\u4f7f\u7528\u7b80\u6d01\u7684\u6784\u9020\u51fd\u6570\u8bed\u6cd5\u76f4\u63a5\u5728\u58f0\u660e\u4e2d\u5b9a\u4e49\u3002\u5b83\u4eec\u81ea\u52a8\u63d0\u4f9b Deconstruct()\u3001ToString() \u548c Equals() \u7b49\u65b9\u6cd5\u3002<\/li>\n<\/ol>\n<pre><code>public record Product(string Name, decimal Price);<\/code><\/pre>\n<p>\u8fd9\u79cd\u5f62\u5f0f\u975e\u5e38\u7b80\u6d01\uff0c\u7279\u522b\u9002\u7528\u4e8e\u6570\u636e\u9a71\u52a8\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\uff0c\u91cd\u70b9\u662f\u6301\u6709\u72b6\u6001\u800c\u975e\u884c\u4e3a\u3002\u5b83\u4eec\u975e\u5e38\u9002\u5408\u7528\u4f5c DTO\u3001\u6d88\u606f\u4f20\u9012\u7cfb\u7edf\u4e2d\u7684\u6d88\u606f\u6216\u8de8\u5c42\u4f20\u9012\u7684\u503c\u3002<\/p>\n<ol start=\"2\">\n<li>\u540d\u4e49\u8bb0\u5f55\uff08Nominal Records\uff0c\u5e26\u663e\u5f0f\u5c5e\u6027\uff09<\/li>\n<\/ol>\n<p>\u4f60\u4e5f\u53ef\u4ee5\u58f0\u660e\u5e26\u6709\u624b\u52a8\u5b9a\u4e49\u5c5e\u6027\u7684\u8bb0\u5f55\uff0c\u8fd9\u6837\u53ef\u4ee5\u8ba9\u4f60\u66f4\u597d\u5730\u63a7\u5236\u9a8c\u8bc1\u3001\u683c\u5f0f\u5316\u6216\u81ea\u5b9a\u4e49\u8bbf\u95ee\u5668\u7b49\u884c\u4e3a\u3002<\/p>\n<pre><code>public record Order\n{\n    public string OrderId { get; init; }\n    public DateTime Date { get; init; }\n}<\/code><\/pre>\n<p>\u8fd9\u79cd\u53d8\u4f53\u5728\u9700\u8981\u66f4\u4e30\u5bcc\u7684\u884c\u4e3a\u3001\u6ce8\u89e3\u6216\u81ea\u5b9a\u4e49\u6570\u636e\u6a21\u578b\u65f6\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u5728\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\uff08DDD\uff09\u4e2d\u7684\u805a\u5408\u6839\u6216\u89c6\u56fe\u6a21\u578b\u4e2d\u3002<\/p>\n<h2>\u4e0d\u53ef\u53d8\u6027\u4e0e with \u8868\u8fbe\u5f0f<\/h2>\n<p>\u8bb0\u5f55\u7c7b\u578b\u7684\u4e00\u4e2a\u6700\u4f18\u96c5\u7684\u7279\u6027\u662f\u901a\u8fc7 with \u8868\u8fbe\u5f0f\u8fdb\u884c\u65e0\u635f\u7684\u53d8\u66f4\u3002\u4f60\u53ef\u4ee5\u57fa\u4e8e\u73b0\u6709\u5b9e\u4f8b\u521b\u5efa\u4e00\u4e2a\u65b0\u5b9e\u4f8b\uff0c\u4ec5\u66f4\u6539\u4f60\u6307\u5b9a\u7684\u503c\uff0c\u800c\u4e0d\u662f\u4fee\u6539\u539f\u59cb\u5b9e\u4f8b\u3002<\/p>\n<pre><code>var original = new User(&quot;Alice&quot;, 30);\nvar updated = original with { Age = 31 };\n\nConsole.WriteLine(original); \/\/ User { Name = Alice, Age = 30 }\nConsole.WriteLine(updated);  \/\/ User { Name = Alice, Age = 31 }<\/code><\/pre>\n<p>\u8fd9\u79cd\u6a21\u5f0f\u975e\u5e38\u9002\u5408\u51fd\u6570\u5f0f\u7f16\u7a0b\u3001\u4e0d\u53ef\u53d8\u72b6\u6001\u7ba1\u7406\u548c\u5e76\u53d1\u7cfb\u7edf\uff0c\u56e0\u4e3a\u5171\u4eab\u7684\u53ef\u53d8\u72b6\u6001\u5f80\u5f80\u662f bug \u7684\u6839\u6e90\u3002with \u8868\u8fbe\u5f0f\u652f\u6301\u6e05\u6670\u7684\u610f\u56fe\u8868\u8fbe\uff0c\u4f7f\u5f97\u7f16\u7a0b\u98ce\u683c\u66f4\u52a0\u7b80\u6d01\u3001\u5b89\u5168\u3002<\/p>\n<h2>\u503c\u76f8\u7b49\u4e0e\u5f15\u7528\u76f8\u7b49<\/h2>\n<p>\u7406\u89e3\u503c\u76f8\u7b49\uff08\u7528\u4e8e\u8bb0\u5f55\u7c7b\u578b\uff09\u4e0e\u5f15\u7528\u76f8\u7b49\uff08\u7528\u4e8e\u7c7b\u7c7b\u578b\uff09\u4e4b\u95f4\u7684\u533a\u522b\u662f\u907f\u514d\u610f\u5916\u884c\u4e3a\u7684\u5173\u952e\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>public class Person(string Name);\npublic record Citizen(string Name);\n\nvar p1 = new Person(&quot;Bob&quot;);\nvar p2 = new Person(&quot;Bob&quot;);\n\nvar c1 = new Citizen(&quot;Bob&quot;);\nvar c2 = new Citizen(&quot;Bob&quot;);\n\nConsole.WriteLine(p1 == p2); \/\/ False\nConsole.WriteLine(c1 == c2); \/\/ True<\/code><\/pre>\n<p>\u8fd9\u79cd\u533a\u522b\u4e0d\u4ec5\u4ec5\u662f\u7406\u8bba\u6027\u7684\uff0c\u5b83\u5f71\u54cd\u5230\u5355\u5143\u6d4b\u8bd5\u3001\u5b57\u5178\u67e5\u627e\u3001LINQ \u67e5\u8be2\u548c UI \u72b6\u6001\u6bd4\u8f83\u7b49\u65b9\u65b9\u9762\u9762\u3002\u4e86\u89e3\u4f60\u7684\u7c7b\u578b\u662f\u901a\u8fc7\u7ed3\u6784\u8fd8\u662f\u901a\u8fc7\u8eab\u4efd\u8fdb\u884c\u6bd4\u8f83\uff0c\u5728\u5927\u578b\u4ee3\u7801\u5e93\u4e2d\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<h2>\u7ee7\u627f\u4e0e\u5c01\u95ed\u6027<\/h2>\n<p>\u8bb0\u5f55\u7c7b\u578b\u652f\u6301\u7ee7\u627f\uff0c\u4f46\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8bb0\u5f55\u7c7b\u578b\u662f\u5c01\u95ed\u7684\uff08sealed\uff09\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 record class \u6216 record struct \u8bed\u6cd5\u521b\u5efa\u8bb0\u5f55\u7c7b\u578b\u5c42\u6b21\u7ed3\u6784\uff0c\u4f46\u91cd\u8981\u7684\u662f\u8981\u7406\u89e3\u76f8\u7b49\u6027\u6bd4\u8f83\u662f\u7c7b\u578b\u654f\u611f\u7684\u3002<\/p>\n<pre><code>public record Animal(string Name);\npublic record Dog(string Name, string Breed) : Animal(Name);\n\nAnimal a = new Dog(&quot;Rex&quot;, &quot;Labrador&quot;);\nAnimal b = new Dog(&quot;Rex&quot;, &quot;Labrador&quot;);\n\nConsole.WriteLine(a == b); \/\/ True \u2014 \u76f8\u540c\u7c7b\u578b\u548c\u76f8\u540c\u503c<\/code><\/pre>\n<p>\u5f53\u7ee7\u627f\u6d89\u53ca\u5230\u65f6\uff0c\u8bb0\u5f55\u7c7b\u578b\u5728\u591a\u6001\u548c\u76f8\u7b49\u6027\u65b9\u9762\u5f15\u5165\u4e86\u5fae\u5999\u7684\u5dee\u5f02\u3002\u57fa\u7c7b\u8bb0\u5f55\u65e0\u6cd5\u8f7b\u6613\u5730\u8986\u76d6\u6d3e\u751f\u7c7b\u7684\u884c\u4e3a\uff0c\u5e76\u4e14 with \u8868\u8fbe\u5f0f\u8fd4\u56de\u7684\u662f\u4e0e\u539f\u59cb\u8bb0\u5f55\u76f8\u540c\u7684\u8fd0\u884c\u65f6\u7c7b\u578b\u2014\u2014\u8fd9\u6837\u65e2\u4fdd\u6301\u4e86\u4e0d\u53ef\u53d8\u6027\uff0c\u4e5f\u786e\u4fdd\u4e86\u7c7b\u578b\u5b89\u5168\u3002<\/p>\n<h2>\u8bb0\u5f55\u7c7b\u578b\u5728\u5b9e\u9645\u573a\u666f\u4e2d\u7684\u5e94\u7528<\/h2>\n<p>\u4ee5\u4e0b\u662f\u51e0\u4e2a\u8bb0\u5f55\u7c7b\u578b\u975e\u5e38\u9002\u7528\u7684\u5b9e\u9645\u573a\u666f\uff1a<\/p>\n<ol>\n<li>\u5efa\u6a21\u4e0d\u53ef\u53d8\u7684\u9886\u57df\u4e8b\u4ef6<br \/>\n\u5728\u4e8b\u4ef6\u6eaf\u6e90\u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e2a\u72b6\u6001\u53d8\u5316\u90fd\u662f\u4e00\u4e2a\u72ec\u7acb\u7684\u3001\u4e0d\u53ef\u53d8\u7684\u4e8b\u4ef6\u3002\u8bb0\u5f55\u7c7b\u578b\u975e\u5e38\u9002\u5408\u8868\u793a\u8fd9\u4e9b\u4e8b\u4ef6\uff0c\u65e2\u6e05\u6670\u53c8\u4e0d\u53ef\u53d8\u3002<\/li>\n<\/ol>\n<pre><code>public record OrderShipped(Guid OrderId, DateTime ShippedAt);<\/code><\/pre>\n<ol start=\"2\">\n<li>\u51fd\u6570\u5f0f\u7ba1\u9053<br \/>\n\u5f53\u6570\u636e\u6d41\u7ecf\u591a\u4e2a\u8f6c\u6362\uff08\u4f8b\u5982\uff0cLINQ \u6216\u6570\u636e\u7ba1\u9053\uff09\u65f6\uff0c\u4f60\u901a\u5e38\u9700\u8981\u8fd4\u56de\u4fee\u6539\u540e\u7684\u76f8\u540c\u7ed3\u6784\u7684\u7248\u672c\u3002with \u8868\u8fbe\u5f0f\u80fd\u591f\u4f18\u96c5\u5730\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/li>\n<\/ol>\n<pre><code>var transformed = inputData with { Status = &quot;Processed&quot; };<\/code><\/pre>\n<ol start=\"3\">\n<li>\u6700\u5c0f\u5316 API \u548c\u6570\u636e\u5951\u7ea6<br \/>\nASP.NET Core \u7684\u6700\u5c0f API \u98ce\u683c\u4e0e\u8bb0\u5f55\u7c7b\u578b\u975e\u5e38\u5951\u5408\uff0c\u5c24\u5176\u5728\u8bf7\u6c42\/\u54cd\u5e94\u7c7b\u578b\u4e2d\uff0c\u80fd\u591f\u51cf\u5c11\u5197\u4f59\u5e76\u63d0\u9ad8\u8868\u8fbe\u6027\u3002<\/li>\n<\/ol>\n<h2>C# 14 \u4e2d\u8bb0\u5f55\u7684\u65b0\u7279\u6027<\/h2>\n<p>C# 14 \u5bf9\u8bb0\u5f55\u7684\u53ef\u7528\u6027\u8fdb\u884c\u4e86\u591a\u9879\u4f18\u5316\uff0c\u7279\u522b\u662f\u5f53\u4e0e\u4e3b\u6784\u9020\u51fd\u6570\u548c\u5fc5\u9700\u6210\u5458\u7ed3\u5408\u4f7f\u7528\u65f6\u3002\u4f60\u73b0\u5728\u53ef\u4ee5\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u4e3b\u6784\u9020\u51fd\u6570\uff0c\u5168\u9762\u652f\u6301\u975e\u8bb0\u5f55\u7c7b\u578b\uff0c\u7f29\u5c0f\u8bb0\u5f55\u4e0e\u7c7b\u4e4b\u95f4\u7684\u5dee\u8ddd\u3002<\/li>\n<li>\u5c06\u5fc5\u9700\u6210\u5458\u4e0e\u8bb0\u5f55\u58f0\u660e\u6df7\u5408\u4f7f\u7528\uff0c\u5b9e\u73b0\u66f4\u5b89\u5168\u7684\u521d\u59cb\u5316\u3002<\/li>\n<li>\u5728\u7ec4\u5408\u57fa\u4e8e\u8bb0\u5f55\u7684\u6a21\u578b\u65f6\u4f9d\u8d56\u96c6\u5408\u8868\u8fbe\u5f0f\u548c\u81ea\u7136\u7684 lambda \u7c7b\u578b\uff0c\u5c24\u5176\u662f\u5728 API \u4e2d\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u6539\u8fdb\u4f7f\u5f97\u8bb0\u5f55\u7c7b\u578b\u5728 C# \u4e2d\u66f4\u52a0\u50cf\u4e00\u4e2a\u4e00\u6d41\u7684\u6570\u636e\u5efa\u6a21\u8bed\u8a00\uff0c\u5b83\u53ef\u4ee5\u4e0e TypeScript \u6216 Kotlin \u7684\u7b80\u6d01\u6027\u76f8\u5ab2\u7f8e\uff0c\u540c\u65f6\u4fdd\u6301 C# \u7684\u5f3a\u5927\u9c81\u68d2\u6027\u3002<\/p>\n<h2>\u7ed3\u8bed\uff1a\u8bb0\u5f55\u7c7b\u578b\u4f5c\u4e3a\u4e00\u79cd\u601d\u7ef4\u65b9\u5f0f<\/h2>\n<p>\u7406\u89e3\u8bb0\u5f55\u7c7b\u578b\u4e0d\u4ec5\u4ec5\u662f\u5b66\u4e60\u4e00\u4e2a\u8bed\u6cd5\u7279\u6027\u2014\u2014\u5b83\u66f4\u662f\u6539\u53d8\u6211\u4eec\u8bbe\u8ba1\u548c\u601d\u8003\u6570\u636e\u7684\u65b9\u5f0f\u3002\u8bb0\u5f55\u7c7b\u578b\u9f13\u52b1\u4e0d\u53ef\u53d8\u6027\u3001\u6e05\u6670\u6027\u548c\u57fa\u4e8e\u503c\u7684\u8bed\u4e49\uff0c\u8fd9\u4e9b\u90fd\u4f1a\u5e26\u6765\u66f4\u52a0\u53ef\u9760\u548c\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u3002<\/p>\n<p>\u65e0\u8bba\u4f60\u662f\u5728\u5efa\u6a21\u4e8b\u4ef6\u3001\u6784\u5efa API \u8fd8\u662f\u8bbe\u8ba1\u9886\u57df\u6a21\u578b\uff0c\u8bb0\u5f55\u7c7b\u578b\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u6d01\u800c\u5bcc\u6709\u8868\u73b0\u529b\u7684\u65b9\u5f0f\u6765\u5c01\u88c5\u72b6\u6001\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u590d\u6742\u6027\u3002\u5b83\u4eec\u4e0d\u4ec5\u662f\u7c7b\u7684\u66ff\u4ee3\u54c1\u2014\u2014\u5b83\u4eec\u4ee3\u8868\u4e86\u4e00\u79cd\u5411\u66f4\u52a0\u58f0\u660e\u5f0f\u3001\u610f\u56fe\u660e\u786e\u7684\u7f16\u7a0b\u98ce\u683c\u8f6c\u53d8\u7684\u6839\u672c\u6027\u53d8\u5316\u3002<\/p>\n<p>\u968f\u7740 C# \u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u62e5\u62b1\u8bb0\u5f55\u7c7b\u578b\u5c06\u5e2e\u52a9\u4f60\u7f16\u5199\u51fa\u66f4\u77ed\u3001\u66f4\u667a\u80fd\u7684\u4ee3\u7801\u3002<\/p>\n<p>\u6ce8\uff1a\u8f6c\u8f7d\u6587\u7ae0\uff0c\u5927\u5bb6\u89c9\u5f97\u4e0a\u9762\u6587\u7ae0\u5982\u4f55\uff1f\u6b22\u8fce\u7559\u8a00\u8ba8\u8bba\u3002<\/p>\n<p>\u672c\u6587\u4f7f\u7528chatgpt\u534f\u52a9\u7ffb\u8bd1\u3002<\/p>\n<p>\u4f5c\u8005\uff1aJohn Godel\uff0c\u7248\u6743\u5f52\u539f\u4f5c\u8005John Godel\u6240\u6709<\/p>\n<p>\u539f\u6587\u94fe\u63a5\uff1ac-sharpcorner.com\/article\/demystifying-records-in-c-sharp-immutable-design-for-modern-applications\/<\/p>\n<p><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=MzI2NDE1MDE1MQ==&amp;mid=2650862550&amp;idx=2&amp;sn=858ec0f7327325c2d0347731a4ac9d75&amp;poc_token=HBjlBWij7ispJs2VhF6ea60pbCr4oE7fDKieKkfc\">https:\/\/mp.weixin.qq.com\/s?__biz=MzI2NDE1MDE1MQ==&mid=2650862550&idx=2&sn=858ec0f7327325c2d0347731a4ac9d75&poc_token=HBjlBWij7ispJs2VhF6ea60pbCr4oE7fDKieKkfc<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u5bc6 C# \u4e2d\u7684\u8bb0\u5f55\u7c7b\u578b\uff1a\u9762\u5411\u73b0\u4ee3\u5e94\u7528\u7684\u4e0d\u53ef\u53d8\u8bbe\u8ba1 C# \u4e00\u76f4\u4ee5\u6765\u4ee5\u5176\u5e73\u8861\u7684\u7279\u6027\u81ea\u8c6a\u2014\u2014\u5b83\u672c\u8d28\u4e0a\u662f\u9762\u5411\u5bf9\u8c61\u7684\uff0c\u4f46\u4e5f\u7a33\u6b65\u5730\u878d\u5165\u4e86\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6784\u9020\u3002\u968f\u7740 C# 9 \u5f15\u5165\u8bb0\u5f55\u7c7b\u578b\uff08Record\uff09\uff0c\u5e76\u4e14\u5728\u540e\u7eed\u7248\u672c\u4e2d\uff08\u5305\u62ec C# 14\uff09\u4e0d\u65ad\u53d1\u5c55\uff0c\u5f00\u53d1\u8005\u83b7\u5f97\u4e86\u4e00\u4e2a\u5f3a\u5927\u7684\u65b0\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6700\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u5efa\u6a21\u4e0d\u53ef\u53d8\u6570\u636e\u3002\u4f46\u8bb0\u5f55\u7c7b\u578b\u4e0d\u4ec5\u4ec5\u662f\u8bed\u6cd5\u7cd6\uff0c\u5b83\u80cc\u540e\u5e26\u6765\u4e86\u5bf9\u503c\u8bed\u4e49\u3001\u76f8\u7b49\u6027\u548c\u6570\u636e\u5efa\u6a21\u65b9\u5f0f\u7684\u6df1\u523b\u8303\u5f0f\u8f6c\u53d8\u3002 \u672c\u6587\u5c06\u5e26\u4f60\u6df1\u5165\u4e86\u89e3 C# \u4e2d\u8bb0\u5f55\u7c7b\u578b\u7684\u4f7f\u7528\uff0c\u4ece\u5176\u8bed\u4e49\u3001\u529f\u80fd\u5230\u4e0e\u4f20\u7edf\u7c7b\u548c\u7ed3\u6784\u4f53\u7684\u533a\u522b\u3002\u65e0\u8bba\u4f60\u662f\u5728\u5904\u7406 DTO\uff08\u6570\u636e\u4f20\u8f93\u5bf9\u8c61\uff09\u3001\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\uff08DDD\uff09\u5b9e\u4f53\uff0c\u8fd8\u662f\u6784\u5efa\u51fd\u6570\u5f0f\u7ba1\u9053\uff0c\u8bb0\u5f55\u7c7b\u578b\u90fd\u80fd\u63d0\u4f9b\u4e00\u79cd\u7b80\u6d01\u800c\u8868\u8fbe\u529b\u5f3a\u7684\u6570\u636e\u5efa\u6a21\u65b9\u5f0f\uff0c\u7b80\u5316\u5e76\u63d0\u5347\u4f60\u7684\u4ee3\u7801\u8d28\u91cf\u3002 \u4ec0\u4e48\u662f\u8bb0\u5f55\u7c7b\u578b\uff1f \u4ece\u672c\u8d28\u4e0a\u8bb2\uff0c\u8bb0\u5f55\u7c7b\u578b\u662f\u4e00\u4e2a\u5f15\u7528\u7c7b\u578b\uff0c\u5b83\u91c7\u7528\u57fa\u4e8e\u503c\u7684\u76f8\u7b49\u8bed\u4e49\u3002\u8fd9\u610f\u5473\u7740\u4e24\u4e2a\u6570\u636e\u76f8\u540c\u7684\u8bb0\u5f55\u5b9e\u4f8b\u88ab\u8ba4\u4e3a\u662f\u76f8\u7b49\u7684\uff0c\u800c\u4e0d\u7ba1\u5b83\u4eec\u5728\u5185\u5b58\u4e2d\u662f\u5426\u6307\u5411\u76f8\u540c\u7684\u5f15\u7528\u3002 \u4f20\u7edf\u4e0a\uff0cC# \u4e2d\u7684\u5f15\u7528\u7c7b\u578b\uff08\u7c7b\uff09\u9ed8\u8ba4\u4f7f\u7528\u5f15\u7528\u76f8\u7b49\u3002\u8fd9\u610f\u5473\u7740\uff0c\u53ea\u6709\u5f53\u4e24\u4e2a\u5bf9\u8c61\u6307\u5411\u76f8\u540c\u7684\u5185\u5b58\u5730\u5740\u65f6\uff0c\u5b83\u4eec\u624d\u88ab\u8ba4\u4e3a\u662f\u76f8\u7b49\u7684\u3002\u800c\u8bb0\u5f55\u7c7b\u578b\u6539\u53d8\u4e86\u8fd9\u4e00\u70b9\uff0c\u901a\u8fc7\u6bd4\u8f83\u5bf9\u8c61\u7684\u503c\u6765\u8fdb\u884c\u76f8\u7b49\u6027\u5224\u65ad\u2014\u2014\u8fd9\u4f7f\u5f97\u8bb0\u5f55\u7c7b\u578b\u975e\u5e38\u9002\u5408\u7528\u4e8e\u6570\u636e\u4f20\u8f93\u3001\u72b6\u6001\u5efa\u6a21\u4ee5\u53ca\u8868\u793a\u4e0d\u53ef\u53d8\u5b9e\u4f53\u3002 \u4ee5\u4e0b\u662f\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u793a\u4f8b\uff1a public record User(string Name, int Age); var u1 = new User(&quot;Alice&quot;, 30); var u2 = new User(&quot;Alice&quot;, 30); Console.WriteLine(u1 == u2); \/\/ True \u2014 \u57fa\u4e8e\u503c\u7684\u76f8\u7b49\u6027 \u76f8\u6bd4\u4e4b\u4e0b\uff0c\u5982\u679c User \u662f\u4e00\u4e2a\u7c7b\uff0c\u6bd4\u8f83\u7ed3\u679c\u4f1a\u8fd4\u56de False\uff0c\u56e0\u4e3a\u5b83\u4eec\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u5f15\u7528\u3002\u8fd9\u79cd\u884c\u4e3a\u662f\u6709\u610f\u4e3a\u4e4b\uff0c\u5e76\u4e14\u662f\u4e00\u79cd\u5f3a\u6709\u529b\u7684\u8f6c\u53d8\uff0c\u4f7f C# \u66f4\u52a0\u8d34\u8fd1 F# \u7b49\u51fd\u6570\u5f0f\u7f16\u7a0b\u8bed\u8a00\uff0c\u5728\u8fd9\u4e9b\u8bed\u8a00\u4e2d\uff0c\u4e0d\u53ef\u53d8\u6027\u548c\u7ed3\u6784\u76f8\u7b49\u6027\u662f\u9ed8\u8ba4\u7684\u3002 \u8bb0\u5f55\u7c7b\u578b\u7684\u5206\u7c7b\uff1a\u4f4d\u7f6e\u8bb0\u5f55\u4e0e\u540d\u4e49\u8bb0\u5f55 C# \u652f\u6301\u4e24\u79cd\u4e3b\u8981\u7684\u8bb0\u5f55\u7c7b\u578b\u5f62\u5f0f\uff1a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-773","post","type-post","status-publish","format-standard","hentry","category-csharp"],"_links":{"self":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts\/773","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=773"}],"version-history":[{"count":0,"href":"https:\/\/diji.net\/index.php?rest_route=\/wp\/v2\/posts\/773\/revisions"}],"wp:attachment":[{"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diji.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}