diff --git a/pydbapi/api/mysql.py b/pydbapi/api/mysql.py
index cee353f..8a0eebc 100644
--- a/pydbapi/api/mysql.py
+++ b/pydbapi/api/mysql.py
@@ -1,7 +1,7 @@
 # @Author: chunyang.xu
 # @Email:  398745129@qq.com
 # @Date:   2020-06-10 14:40:50
-# @Last Modified time: 2021-11-16 18:42:55
+# @Last Modified time: 2021-11-20 10:22:21
 # @github: https://github.com/longfengpili
 
 # !/usr/bin/env python3
@@ -114,7 +114,9 @@ def __init__(self, host, user, password, database, port=3306, charset="utf8", sa
 
     def __new__(cls, *args, **kwargs):
         if not hasattr(MysqlDB, '_instance'):
+            mysqllogger.info(MysqlDB._instance_lock)
             with MysqlDB._instance_lock:
+                mysqllogger.info(MysqlDB._instance_lock)
                 if not hasattr(MysqlDB, '_instance'):
                     MysqlDB._instance = super().__new__(cls)
 
@@ -122,10 +124,12 @@ def __new__(cls, *args, **kwargs):
 
     @classmethod
     def get_instance(cls, *args, **kwargs):
+        mysqllogger.info('1')
         if not hasattr(MysqlDB, '_instance'):
+            mysqllogger.info(MysqlDB._instance_lock)
             with MysqlDB._instance_lock:
                 if not hasattr(MysqlDB, '_instance'):
-                    MysqlDB._instance = MysqlDB(*args, **kwargs)
+                    MysqlDB._instance = super().__new__(cls)
 
         return MysqlDB._instance
 
diff --git a/setup.py b/setup.py
index a800eb3..bf36aaa 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 # @Author: chunyang.xu
 # @Email:  398745129@qq.com
 # @Date:   2020-06-09 16:46:54
-# @Last Modified time: 2021-11-19 14:57:01
+# @Last Modified time: 2021-11-20 10:22:31
 # @github: https://github.com/longfengpili
 
 # !/usr/bin/env python3
@@ -12,7 +12,7 @@
 import shutil
 import setuptools
 
-VERSION = '0.0.78'
+VERSION = '0.0.79'
 PROJECT_NAME = 'pydbapi'
 
 with open('README.md', 'r', encoding='utf-8') as f:
diff --git a/tests/mysql/mysql_test.py b/tests/mysql/mysql_test.py
index 847ab8c..41d6a17 100644
--- a/tests/mysql/mysql_test.py
+++ b/tests/mysql/mysql_test.py
@@ -2,7 +2,7 @@
 # @Author: chunyang.xu
 # @Date:   2021-03-08 14:19:01
 # @Last Modified by:   chunyang.xu
-# @Last Modified time: 2021-11-16 18:41:11
+# @Last Modified time: 2021-11-20 10:15:24
 
 import os
 import pytest
@@ -35,13 +35,13 @@ def teardown_method(self, method):
 
     def test_get_instance(self):
         mysql1 = MysqlDB.get_instance(safe_rule=False, **self.AdLocal)
-        mysql2 = MysqlDB.get_instance(safe_rule=False, **self.AdLocal)
-        mysql3 = MysqlDB(safe_rule=False, **self.AdLocal)
-        mysql4 = MysqlDB(safe_rule=False, **self.AdLocal)
-        print(mysql1, mysql2, mysql3, mysql4)
-        for i in dir(mysql4):
-            result = eval(f"mysql4.{i}")
-            print(f"【{i}】: {result}")
+        # mysql2 = MysqlDB.get_instance(safe_rule=False, **self.AdLocal)
+        # mysql3 = MysqlDB(safe_rule=False, **self.AdLocal)
+        # mysql4 = MysqlDB(safe_rule=False, **self.AdLocal)
+        # print(mysql1, mysql2, mysql3, mysql4)
+        # for i in dir(mysql4):
+        #     result = eval(f"mysql4.{i}")
+        #     print(f"【{i}】: {result}")
 
     def test_drop(self):
         rows, action, result = self.mysqldb.drop(self.tablename)