diff --git a/example/logger/formatter.py b/example/logger/formatter.py
index 83b9d96..6b9c7f1 100644
--- a/example/logger/formatter.py
+++ b/example/logger/formatter.py
@@ -7,10 +7,7 @@
 import inspect
 
 from lib_not_dr.logger.structure import LogMessage
-from lib_not_dr.logger.formatter import (StdFormatter,
-                                         TimeFormatter,
-                                         LevelFormatter,
-                                         TraceFormatter)
+from lib_not_dr.logger.formatter import (StdFormatter)
 
 
 if __name__ == '__main__':
diff --git a/lib_not_dr/logger/structure.py b/lib_not_dr/logger/structure.py
index b8ee936..0528102 100644
--- a/lib_not_dr/logger/structure.py
+++ b/lib_not_dr/logger/structure.py
@@ -57,6 +57,8 @@ class LogMessage(Options):
         :param kwargs: other options
         """
         # 为了方便使用 单独覆盖了 __init__ 方法来提供代码补全的选项
+        if messages is None:
+            messages = []
         super().__init__(messages=messages,
                          end=end,
                          split=split,
@@ -76,6 +78,8 @@ class LogMessage(Options):
         return False
 
     def format_message(self) -> str:
+        if self.split is None:
+            self.split = ' '
         return self.split.join(self.messages) + self.end
 
     def format_for_message(self) -> Dict[str, str]:
diff --git a/test/logger/formatter.py b/test/logger/formatter.py
index 1bd6763..aa26af3 100644
--- a/test/logger/formatter.py
+++ b/test/logger/formatter.py
@@ -7,7 +7,7 @@
 import inspect
 import unittest
 
-from lib_not_dr.logger.formatter import BaseFormatter, TimeFormatter, LevelFormatter, TraceFormatter
+from lib_not_dr.logger.formatter import BaseFormatter, MainFormatter
 from lib_not_dr.logger.structure import LogMessage
 
 
@@ -26,22 +26,8 @@ class FormatterTest(unittest.TestCase):
         self.assertEqual(message.logger_name, 'root')
         self.assertEqual(message.logger_tag, 'root')
 
-    def test_create_empty_tag_message(self):
-        message = LogMessage()
-
-        self.assertIsNone(message.logger_tag)
-        self.assertEqual(message.format_for_message()['logger_tag'], '   ')
-
-    def test_formatter(self):
-        formatter = BaseFormatter()
-        formatter.info()
-
-    def test_time_formatter(self):
-        formatter = TimeFormatter()
-        formatter.info()
-
-    def test_level_formatter(self):
-        formatter = LevelFormatter()
+    def test_format_level(self):
+        formatter = MainFormatter()
         formatter.info()
         message = LogMessage(messages=['test'],
                              level=0)
@@ -55,7 +41,3 @@ class FormatterTest(unittest.TestCase):
     def test_std_formatter(self):
         formatter = BaseFormatter()
         formatter.info()
-
-    def test_trace_formatter(self):
-        formatter = TraceFormatter()
-        formatter.info()
diff --git a/test/logger/structure.py b/test/logger/structure.py
new file mode 100644
index 0000000..3c4bb70
--- /dev/null
+++ b/test/logger/structure.py
@@ -0,0 +1,52 @@
+#  -------------------------------
+#  Difficult Rocket
+#  Copyright © 2020-2023 by shenjackyuanjie 3695888@qq.com
+#  All rights reserved
+#  -------------------------------
+
+import time
+import unittest
+
+from lib_not_dr.logger.structure import LogMessage
+
+
+class LogMessageTest(unittest.TestCase):
+    def test_create_empty_message(self):
+        message = LogMessage()
+        self.assertEqual(message.messages, [])
+        self.assertEqual(message.level, 20)
+        self.assertEqual(message.logger_name, 'root')
+        self.assertEqual(message.logger_tag, None)
+
+    def test_format_message_empty(self):
+        """
+        测试空消息的格式化
+        因为才发现空信息之前的格式化是有问题的(因为没有初始化 messages)
+        """
+        message = LogMessage()
+        self.assertEqual(message.format_message(), '\n')
+
+    def test_format_message_end(self):
+        """
+        测试消息的结尾
+        """
+        message = LogMessage(messages=['test'],
+                             end='\n')
+        for testing in ('\n', '\r\n', '\r'):
+            message.end = testing
+            self.assertEqual(message.format_message(), 'test' + testing)
+
+    def test_format_message_split(self):
+        """
+        测试消息的分割
+        """
+        message = LogMessage(messages=['test', 'test2'], end='')
+        for testing in (' ', ' | ', ' | '):
+            message.split = testing
+            self.assertEqual(message.format_message(), 'test' + testing + 'test2')
+
+    def test_msec_3(self):
+        start_time = time.time()
+        message = LogMessage(log_time=start_time)
+        msec_3 = int(start_time / 1000000) % 1000
+        self.assertEqual(message.create_msec_3, msec_3)