diff --git a/db/database_manager.py b/db/database_manager.py
new file mode 100644
index 0000000..7ec4cef
--- /dev/null
+++ b/db/database_manager.py
@@ -0,0 +1,28 @@
+import pymysql
+from config import DB_CONFIG
+
+class DatabaseManager:
+    def __init__(self):
+        self.connection = pymysql.connect(**DB_CONFIG)
+
+    def fetch(self, query, params=None):
+        # 实现查询逻辑
+        pass
+
+    def insert(self, query, params=None):
+        # 实现插入逻辑
+        pass
+
+    def update(self, query, params=None):
+        # 实现更新逻辑
+        pass
+
+    def delete(self, query, params=None):
+        # 实现删除逻辑
+        pass
+
+    def close(self):
+        # 关闭数据库连接
+        self.connection.close()
+
+# 可能还包含其他数据库操作方法...