试图移植

src/heurams/interface/widgets/placeholder.py

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+from textual.app import App, ComposeResult
+from textual.events import Event
+from textual.widgets import (
+    Collapsible,
+    Header,
+    Footer,
+    Markdown,
+    ListView,
+    ListItem,
+    Label,
+    Static,
+    Button,
+)
+from textual.containers import Container, Horizontal, Center
+from textual.screen import Screen
+from textual.widget import Widget
+import uuid
+from typing import Tuple, Dict
+import heurams.kernel.particles as pt
+import heurams.kernel.puzzles as pz
+import re
+import random
+import copy
+
+class Placeholder(Composition):
+    def __init__(self, screen: Screen, extra = {}):
+        self.screen = screen
+
+    def compose(self):
+        yield Label("示例标签", id="testlabel")
+        yield Button("示例按钮", id="testbtn", classes="choice")
+
+    def handler(self, event, type_):
+        self.screen.query_one("#testlabel", Label).update("hi")