diff --git a/AyCode.Core/Loggers/AcConsoleLogWriter.cs b/AyCode.Core/Loggers/AcConsoleLogWriter.cs
index dd7ad5c..2ce216c 100644
--- a/AyCode.Core/Loggers/AcConsoleLogWriter.cs
+++ b/AyCode.Core/Loggers/AcConsoleLogWriter.cs
@@ -9,6 +9,8 @@ public interface IAcConsoleLogWriter : IAcTextLogWriterBase
 
 public class AcConsoleLogWriter : AcTextLogWriterBase, IAcConsoleLogWriter
 {
+    private static readonly object ForWriterLock = new();
+
     protected AcConsoleLogWriter() : this(null)
     {
         Initialize();
@@ -33,29 +35,25 @@ public class AcConsoleLogWriter : AcTextLogWriterBase, IAcConsoleLogWriter
     {
         if (logText.IsNullOrWhiteSpace()) return;
 
-        //lock (ForWriterLock)
+        lock (ForWriterLock)
         {
-            if (loglevel is > LogLevel.Trace and < LogLevel.Suggest)
+            switch (loglevel)
             {
-                //Console.ForegroundColor = ConsoleColor.White;
-                Console.WriteLine(logText);
-                return;
-            }
-
-            if (loglevel <= LogLevel.Trace)
-            {
-                Console.ForegroundColor = ConsoleColor.Gray;
-                Console.WriteLine(logText);
-            }
-            else if (loglevel == LogLevel.Suggest)
-            {
-                Console.ForegroundColor = ConsoleColor.Cyan;
-                Console.WriteLine(logText);
-            }
-            else 
-            {
-                Console.ForegroundColor = loglevel == LogLevel.Warning ? ConsoleColor.Yellow : ConsoleColor.Red;
-                Console.WriteLine($"{AcEnv.NL}{logText}{AcEnv.NL}");
+                case > LogLevel.Trace and < LogLevel.Suggest:
+                    Console.WriteLine(logText);
+                    return;
+                case <= LogLevel.Trace:
+                    Console.ForegroundColor = ConsoleColor.Gray;
+                    Console.WriteLine(logText);
+                    break;
+                case LogLevel.Suggest:
+                    Console.ForegroundColor = ConsoleColor.Cyan;
+                    Console.WriteLine(logText);
+                    break;
+                default:
+                    Console.ForegroundColor = loglevel == LogLevel.Warning ? ConsoleColor.Yellow : ConsoleColor.Red;
+                    Console.WriteLine($"{AcEnv.NL}{logText}{AcEnv.NL}");
+                    break;
             }
 
             Console.ForegroundColor = ConsoleColor.White;