diff --git a/cppy/cp_util.py b/cppy/cp_util.py
index 76defb6..56fe658 100644
--- a/cppy/cp_util.py
+++ b/cppy/cp_util.py
@@ -10,6 +10,8 @@ testfilename = 'test.txt'
 testfilename = 'pride-and-prejudice.txt'
 testfilename = 'Prey.txt'
 
+db_filename = "tf.db"  
+
 site_packages = site.getsitepackages()
 for package in site_packages:
     if 'package' in  package:
diff --git a/计算设备/数据库/ORM/__pycache__/createDb.cpython-38.pyc b/计算设备/数据库/ORM/__pycache__/createDb.cpython-38.pyc
deleted file mode 100644
index 9de75d7..0000000
Binary files a/计算设备/数据库/ORM/__pycache__/createDb.cpython-38.pyc and /dev/null differ
diff --git a/计算设备/数据库/tf-26.py b/计算设备/数据库/tf-26.py
index 4c3584a..8288778 100644
--- a/计算设备/数据库/tf-26.py
+++ b/计算设备/数据库/tf-26.py
@@ -1,5 +1,5 @@
 import sqlite3, os.path
-from cppy.cp_util import *
+from cppy.cp_util import testfilepath,db_filename,extract_file_words
 
 
 # 数据库表结构
@@ -45,17 +45,26 @@ def load_file_into_database(path_to_file, connection):
     connection.commit()
     c.close()
 
-
+#######################################################
 # 建数据库，处理数据入库
-db_path = 'tfdb'
-if not os.path.isfile(db_path):
-    with sqlite3.connect(db_path) as connection:
+#######################################################
+
+# 获取当前文件所在的目录  
+current_dir = os.path.dirname(os.path.abspath(__file__))   
+# 构造数据库文件的完整路径  
+db_file_path = os.path.join(current_dir, db_filename)    
+
+if os.path.exists(db_file_path):          
+    os.remove(db_file_path)   
+
+if not os.path.isfile(db_file_path):
+    with sqlite3.connect(db_file_path) as connection:
         create_db_schema(connection)
         load_file_into_database(testfilepath, connection)
 
 
 # 查询输出
-with sqlite3.connect(db_path) as connection:
+with sqlite3.connect(db_file_path) as connection:
     c = connection.cursor()
     c.execute("SELECT value, COUNT(*) as C FROM words GROUP BY value ORDER BY C DESC LIMIT 10")
     for row in c.fetchall():