跟着麦叔学flask，感谢b站麦叔

database.py

@@ -0,0 +1,11 @@
+import sqlite3
+from flask import g
+
+DATABASE_owp = '/var/databases/sqlite/owp.db'
+
+def get_owp_db():
+    db = getattr(g, '_database', None)
+    if db is None:
+        db = g._database = sqlite3.connect(DATABASE_owp)
+        db.row_factory = sqlite3.Row
+    return db