Optimizing and improving code

v2rayN/ServiceLib/Common/Extension.cs

@@ -2,7 +2,7 @@ using System.Diagnostics.CodeAnalysis;
 
 namespace ServiceLib.Common;
 
-public static class StringEx
+public static class Extension
 {
     public static bool IsNullOrEmpty([NotNullWhen(false)] this string? value)
     {
@@ -79,4 +79,9 @@ public static class StringEx
     {
         return int.TryParse(value, out var result) ? result : defaultValue;
     }
+
+    public static List<string> AppendEmpty(this IEnumerable<string> source)
+    {
+        return source.Concat(new[] { string.Empty }).ToList();
+    }
 }

v2rayN/ServiceLib/Common/Utils.cs

@@ -323,6 +323,14 @@ public class Utils
         return text.Replace("，", ",").Replace(Environment.NewLine, ",");
     }
 
+    public static List<string> GetEnumNames<TEnum>() where TEnum : Enum
+    {
+        return Enum.GetValues(typeof(TEnum))
+            .Cast<TEnum>()
+            .Select(e => e.ToString())
+            .ToList();
+    }
+
     #endregion 转换函数
 
     #region 数据检查