refactor(重构程序&目录结构)

extensions/init_login.py

@@ -0,0 +1,15 @@
+from flask_login import LoginManager
+
+
+def init_login_manager(app):
+    login_manager = LoginManager()
+    login_manager.init_app(app)
+
+    login_manager.login_view = 'index.login'
+    login_manager.login_message = u'请登录以访问此页面'
+
+    @login_manager.user_loader
+    def load_user(user_id):
+        from models import UserModels
+        user = UserModels.query.get(int(user_id))
+        return user