更新谜题生成器

compositions.py

@@ -43,6 +43,7 @@ class Finished(Composition):
     def compose(self):
         yield Label("本次记忆进程结束", id=self.regid("msg"))
         #yield Button("示例按钮", id="testbtn")
+
 class Placeholder(Composition):
     def __init__(self, screen: Screen):
         self.screen = screen
@@ -147,6 +148,12 @@ class FillBlank(Composition):
         if event.button.id == "ok":
             return 1
 
+class DrawCard(Composition):
+    def __init__(self, screen: Screen, reactor, atom: Tuple[pt.Electron, pt.Nucleon, Dict] = pt.Atom.placeholder()):
+        super().__init__(screen, reactor, atom)
+    def compose(self):
+        
+    def handler(self, event, type_):
 
 registry = {
     "sample": Composition,