diff --git a/database.py b/database.py
new file mode 100644
index 0000000..237f9a6
--- /dev/null
+++ b/database.py
@@ -0,0 +1,17 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker,declarative_base
+
+
+tea_url ='mysql+pymysql://root:123456@127.0.0.1:3306/ai0824_stu?charset=utf8'
+
+engine = create_engine(tea_url,pool_size=100, echo=False)
+Base=declarative_base()
+Session = sessionmaker(bind=engine,autoflush=False,autocommit=False)
+
+
+def get_db():
+    db = Session()
+    try:
+        yield db
+    finally:
+        db.close()
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