diff --git a/src/backend/NetAdmin/NetAdmin.Infrastructure/Enums/EnumExtensions.cs b/src/backend/NetAdmin/NetAdmin.Infrastructure/Enums/EnumExtensions.cs
new file mode 100644
index 00000000..4ccda04e
--- /dev/null
+++ b/src/backend/NetAdmin/NetAdmin.Infrastructure/Enums/EnumExtensions.cs
@@ -0,0 +1,16 @@
+namespace NetAdmin.Infrastructure.Enums;
+
+/// <summary>
+///     枚举扩展方法
+/// </summary>
+public static class EnumExtensions
+{
+    /// <summary>
+    ///     通过类泛型类型获取特性
+    /// </summary>
+    public static T Attr<T>(this Enum me)
+        where T : Attribute
+    {
+        return me.GetType().GetMember(me.ToString())[0].GetCustomAttributes<T>(false).FirstOrDefault();
+    }
+}
\ No newline at end of file
diff --git a/src/backend/NetAdmin/NetAdmin.Infrastructure/Extensions/CountryCodesExtensions.cs b/src/backend/NetAdmin/NetAdmin.Infrastructure/Extensions/CountryCodesExtensions.cs
index 81fcf97c..3140a6c1 100644
--- a/src/backend/NetAdmin/NetAdmin.Infrastructure/Extensions/CountryCodesExtensions.cs
+++ b/src/backend/NetAdmin/NetAdmin.Infrastructure/Extensions/CountryCodesExtensions.cs
@@ -1,6 +1,4 @@
-using Microsoft.OpenApi.Extensions;
-
-namespace NetAdmin.Infrastructure.Extensions;
+namespace NetAdmin.Infrastructure.Extensions;
 
 /// <summary>
 ///     CountryCodes 扩展方法
@@ -12,6 +10,6 @@ public static class CountryCodesExtensions
     /// </summary>
     public static int GetCallingCode(this CountryCodes me)
     {
-        return me.GetAttributeOfType<CountryInfoAttribute>().CallingCode;
+        return me.Attr<CountryInfoAttribute>().CallingCode;
     }
 }
\ No newline at end of file
diff --git a/src/backend/NetAdmin/NetAdmin.Infrastructure/Utils/PhoneNumberHelper.cs b/src/backend/NetAdmin/NetAdmin.Infrastructure/Utils/PhoneNumberHelper.cs
index b0493487..b6fc9fee 100644
--- a/src/backend/NetAdmin/NetAdmin.Infrastructure/Utils/PhoneNumberHelper.cs
+++ b/src/backend/NetAdmin/NetAdmin.Infrastructure/Utils/PhoneNumberHelper.cs
@@ -1,5 +1,3 @@
-using Microsoft.OpenApi.Extensions;
-
 namespace NetAdmin.Infrastructure.Utils;
 
 /// <summary>
@@ -15,13 +13,13 @@ public static class PhoneNumberHelper
     {
         _countryList = Enum.GetValues<CountryCodes>()
                            .SelectMany(x => {
-                               var attribute = x.GetAttributeOfType<CountryInfoAttribute>();
+                               var attribute = x.Attr<CountryInfoAttribute>();
 
                                // ReSharper disable once UseCollectionExpression
                                return (attribute.CallingSubCode ?? new[] { string.Empty }).Select(y => (attribute.CallingCode + y, x));
                            })
                            .OrderBy(x => x.Item1)
-                           .ThenByDescending(x => x.x.GetAttributeOfType<CountryInfoAttribute>().IsPreferred)
+                           .ThenByDescending(x => x.x.Attr<CountryInfoAttribute>().IsPreferred)
                            .DistinctBy(x => x.Item1)
                            .OrderByDescending(x => x.Item1.Length);
     }
diff --git a/src/backend/NetAdmin/NetAdmin.SysComponent.Application/Modules/Sys/Session/IUserModule.cs b/src/backend/NetAdmin/NetAdmin.SysComponent.Application/Modules/Sys/Session/IUserModule.cs
index 16a7a99e..47b72bb4 100644
--- a/src/backend/NetAdmin/NetAdmin.SysComponent.Application/Modules/Sys/Session/IUserModule.cs
+++ b/src/backend/NetAdmin/NetAdmin.SysComponent.Application/Modules/Sys/Session/IUserModule.cs
@@ -1,6 +1,5 @@
 using NetAdmin.Domain.Dto.Sys.UserProfile;
 
-// ReSharper disable once CheckNamespace
 namespace NetAdmin.SysComponent.Application.Modules.Sys;
 
 public partial interface IUserModule
diff --git a/src/backend/NetAdmin/NetAdmin.SysComponent.Application/Services/Sys/ConstantService.cs b/src/backend/NetAdmin/NetAdmin.SysComponent.Application/Services/Sys/ConstantService.cs
index b7d8a15f..75d09a95 100644
--- a/src/backend/NetAdmin/NetAdmin.SysComponent.Application/Services/Sys/ConstantService.cs
+++ b/src/backend/NetAdmin/NetAdmin.SysComponent.Application/Services/Sys/ConstantService.cs
@@ -1,4 +1,3 @@
-using Microsoft.OpenApi.Extensions;
 using NetAdmin.Domain.Attributes;
 
 namespace NetAdmin.SysComponent.Application.Services.Sys;
@@ -32,11 +31,11 @@ public sealed class ConstantService : ServiceBase<IConstantService>, IConstantSe
         static string[] GetDicValue(Enum y)
         {
             var ret = new[] { Convert.ToInt64(y, CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture), y.ResDesc<Ln>() };
-            if (y is CountryCodes) {
-                return [..ret, y.GetAttributeOfType<CountryInfoAttribute>().CallingCode.ToInvString()];
+            if (y is CountryCodes z) {
+                return [..ret, z.GetCallingCode().ToInvString()];
             }
 
-            var indicate = y.GetAttributeOfType<IndicatorAttribute>()?.Indicate.ToLowerInvariant();
+            var indicate = y.Attr<IndicatorAttribute>()?.Indicate.ToLowerInvariant();
             return indicate.NullOrEmpty() ? ret : [..ret, indicate];
         }