style: 代码格式化

src/heurams/kernel/puzzles/mcq.py

@@ -2,15 +2,12 @@
 from .base import BasePuzzle
 import random
 
+
 class MCQPuzzle(BasePuzzle):
     """选择题谜题生成器"""
-    
+
     def __init__(
-        self,
-        mapping: dict,
-        jammer: list,
-        max_riddles_num: int = 2,
-        prefix: str = ""
+        self, mapping: dict, jammer: list, max_riddles_num: int = 2, prefix: str = ""
     ):
         self.prefix = prefix
         self.mapping = mapping
@@ -29,18 +26,16 @@ class MCQPuzzle(BasePuzzle):
             self.answer = ["无答案"]
             self.options = []
             return
-        
+
         num_questions = min(self.max_riddles_num, len(self.mapping))
         questions = random.sample(list(self.mapping.items()), num_questions)
         puzzles = []
         answers = []
         all_options = []
-        
+
         for question, correct_answer in questions:
             options = [correct_answer]
-            available_jammers = [
-                j for j in self.jammer if j != correct_answer
-            ]
+            available_jammers = [j for j in self.jammer if j != correct_answer]
             if len(available_jammers) >= 3:
                 selected_jammers = random.sample(available_jammers, 3)
             else:
@@ -50,14 +45,14 @@ class MCQPuzzle(BasePuzzle):
             puzzles.append(question)
             answers.append(correct_answer)
             all_options.append(options)
-        
+
         question_texts = []
         for i, puzzle in enumerate(puzzles):
             question_texts.append(f"{self.prefix}:\n  {i+1}. {puzzle}")
-        
+
         self.wording = question_texts
         self.answer = answers
         self.options = all_options
 
     def __str__(self):
-        return f"{self.wording}\n正确答案: {', '.join(self.answer)}"
+        return f"{self.wording}\n正确答案: {', '.join(self.answer)}"