diff --git a/bricks_for_python/init.py b/bricks_for_python/init.py
index 2399eb7..b85d63e 100644
--- a/bricks_for_python/init.py
+++ b/bricks_for_python/init.py
@@ -29,7 +29,7 @@ def UiWindow(title, icon, content, cheight=10, cwidth=15):
         }
     }
 
-def UiError(title="出错", message="出错啦", timeout=5):
+def UiError(title="出错", message="出错啦", timeout=5, **kw):
     return {
         "widgettype":"Error",
         "options":{
@@ -40,9 +40,9 @@ def UiError(title="出错", message="出错啦", timeout=5):
             "title":title,
             "message":message
         }
-    }
+    }.update(kw)
 
-def UiMessage(title="消息", message="后台消息", timeout=5):
+def UiMessage(title="消息", message="后台消息", timeout=5, **kw):
     return {
         "widgettype":"Message",
         "options":{
@@ -53,7 +53,7 @@ def UiMessage(title="消息", message="后台消息", timeout=5):
             "title":title,
             "message":message
         }
-    }
+    }.update(kw)
 
 def load_pybricks():
 	g = ServerEnv()