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作为一名非主修C#的程序员，在此记录下学习与工作中C#的有用内容，持续更新 对类型进行约束，class指定了类型必须是引用类型，new()指定了类型必须具有一个无参的构造函数，规定T类型必须实现IUser,规定T必须为struct where T : class, new(), T:IUser, T 阅读全文
posted @ 2017-04-22 19:45
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public static class DistinctEx { /// <summary> /// 根据指定字段去重 /// </summary> /// <typeparam name="TSource"></typeparam> /// <typeparam name="TKey"></typ 阅读全文
posted @ 2025-11-04 14:27
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private SqlSugarClient GetDB() { SqlSugarClient db = new SqlSugarClient(new ConnectionConfig() { ConnectionString = "Host=127.0.0.1;Database=test;User 阅读全文
posted @ 2025-10-13 15:01
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安装 docker run -dp 5000:5000 --restart=always --name oldboyedu-registry -v /var/lib/registry:/var/lib/registry registry:2 验证服务 curl http://127.0.0.1:50 阅读全文
posted @ 2025-10-09 11:44
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public static List<dynamic> OrderByKey (this IList<dynamic> list, string propertyName, bool isDescending = false) { var propertyInfo = list[0].GetType 阅读全文
posted @ 2025-09-25 13:27
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//测试类 var type = typeof(TestClass); //给类对象添加、获取特性 TypeDescriptor.AddAttributes(type, indexAttr); //var attr = TypeDescriptor.GetAttributes(type)[typeo 阅读全文
posted @ 2025-09-22 17:50
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public static class FileSafeWrite { public static void WriteAllTextAtomically(string filePath, string content) { // 定义临时文件路径 string tempFilePath = fil 阅读全文
posted @ 2025-09-22 15:05
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using System.Collections.Concurrent; internal class Program { static void Main(string[] args) { ConcurrentDictionary<string, RedisConnection> redisCon 阅读全文
posted @ 2025-09-16 18:59
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通过pg_typeof //基础示例 SELECT pg_typeof(id) FROM t_basic_config LIMIT 1; //多表join SELECT pg_typeof(a.id),pg_typeof(b.user_password) FROM t_basic_config a 阅读全文
posted @ 2025-09-10 21:14
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client = new RestClient(new RestClientOptions { RemoteCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true }); 阅读全文
posted @ 2025-09-04 21:21
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webView.CoreWebView2.ServerCertificateErrorDetected += WebView_ServerCertificateErrorDetected; private void WebView_ServerCertificateErrorDetected(obj 阅读全文
posted @ 2025-09-04 21:20
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