diff --git a/Sources/DFService/ServiceError.swift b/Sources/DFService/ServiceError.swift
index fad26c7..75d236c 100644
--- a/Sources/DFService/ServiceError.swift
+++ b/Sources/DFService/ServiceError.swift
@@ -3,16 +3,64 @@
 ///
 /// - api: Indicates an API error with an associated error code and message.
 /// - notImplemented: Indicates that a feature or method is not yet implemented. The default value includes the file and function name.
+
+import Foundation
+
 public enum ServiceError: Error {
     /// API 错误，包含错误代码和消息
     /// - Parameters:
     ///   - code: 错误代码
     ///   - message: 错误消息
-    ///   - debugMessage: 可选的调试消息，默认为 nil
-    /// - Example: `ServiceError.api(code: 404, message: "Not Found")`
-    /// - Example: `ServiceError.api(code: 500, message: "Internal Server Error", debugMessage: "Database connection failed")`
-    case api(code: Int, message: String, debugMessage: String? = nil)
+    ///   - detail: 可选的调试消息，默认为 nil
+    case api(code: Int, message: String, detail: String? = nil)
 
     /// 未实现
-    case notImplemented(String = #fileID + " " + #function)
+    case notImplemented(String = #function)
+    /// 自定义错误
+    case custom(Error)
+
+    public static func from(_ error: Error) -> ServiceError {
+        if let serviceError = error as? ServiceError {
+            return serviceError
+        } else {
+            return .custom(error)
+        }
+    }
+}
+
+/// 扩展 ServiceError 以提供错误描述
+extension ServiceError: CustomStringConvertible, CustomDebugStringConvertible {
+    public var errorCode: Int {
+        switch self {
+        case .api(let code, _, _):
+            return code
+        case .notImplemented:
+            return 0  // 未实现的错误没有特定的错误代码
+        case .custom(let error):
+            return (error as NSError).code  // 使用 NSError 的代码
+        }
+    }
+    public var description: String {
+        switch self {
+        case .api(_, let message, _):
+            return message
+        case .notImplemented(let location):
+            return "未实现: \(location)"
+        case .custom(let error):
+            return error.localizedDescription
+        }
+    }
+
+    public var debugDescription: String {
+
+        switch self {
+        case .api(let code, let message, let detail):
+            return
+                "ServiceError api - Code: \(code), Message: \(message), Detail: \(detail ?? "No detail")"
+        case .notImplemented(let location):
+            return "ServiceError - Location: \(location)"
+        case .custom(let error):
+            return "ServiceError - \(error.localizedDescription)"
+        }
+    }
 }