新增错题记录功能，错题出现的频率会更高

.gitignore

@@ -160,3 +160,4 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+/*.dat

Config.py

@@ -0,0 +1,6 @@
+# 配置考卷
+quest_config = {
+    'A': {'num': 30, 'time': 40, 'pass': 25},
+    'B': {'num': 50, 'time': 60, 'pass': 40},
+    'C': {'num': 80, 'time': 90, 'pass': 60}
+}

Generator.py

@@ -0,0 +1,65 @@
+import json
+import os
+import random
+import Config
+
+class Quest:
+    def __init__(self, json_obj):
+        self.index = json_obj['index']
+        self.question = json_obj['Q']
+        self.code = json_obj['I']
+        self.correct = json_obj['A']
+        self.options = [json_obj['A'], json_obj['B'], json_obj['C'], json_obj['D']]
+        self.random_options = random.sample(self.options, len(self.options))
+
+weight_path = 'weight.dat'
+
+def enhance_weight(quest: Quest):
+    with open(weight_path, 'r') as f:
+        weight = json.load(f)
+    if quest.code in weight:
+        weight[quest.code] += 10
+    else:
+        weight[quest.code] = 10
+    with open(weight_path, 'w') as f:
+        json.dump(weight, f, ensure_ascii=False, indent=4)
+    pass
+
+def reduce_weight(quest: Quest):
+    with open(weight_path, 'r') as f:
+        weight = json.load(f)
+    if quest.code in weight:
+        weight[quest.code] -= 1
+    else:
+        weight[quest.code] = -1
+    with open(weight_path, 'w') as f:
+        json.dump(weight, f, ensure_ascii=False, indent=4)
+    pass
+
+# 模拟加载题目
+def generate_quests(type_str):
+    # 模拟从JSON文件加载题目
+    with open(f'quests/quests_{type_str}.json', 'r', encoding='utf-8') as f:
+        json_content = json.load(f)
+    list_quest = [Quest(obj) for obj in json_content]
+    # load weight
+    weights = {}
+    if not os.path.exists(weight_path):
+        with open(weight_path, 'w') as f:
+            json.dump({}, f)
+    else:
+        with open(weight_path, 'r') as f:
+            weights = json.load(f)
+    # 将 list_quest 分为有权重和无权重的两部分
+    list_quest_weighted = [quest for quest in list_quest if quest.code in weights]
+    list_quest_unweighted = [quest for quest in list_quest if quest.code not in weights]
+    # 有权中的按权重排序
+    list_quest_weighted.sort(key=lambda x: weights[x.code], reverse=True)
+    list_quest = list_quest_unweighted + list_quest_weighted
+    # 根据权重随机选取题目 80% 的题目来自权重前 40% 的题目 20% 的题目来自权重后 60% 的题目
+    num = Config.quest_config[type_str]['num'] # 要生成的题目数量
+    top = int(num * 0.8)
+    quests = random.sample(list_quest[:top], top) + random.sample(list_quest[top:], num - top)
+    # 对 quests 中的题目再次随机排序
+    random.shuffle(quests)
+    return quests

Quest.py

@@ -3,41 +3,13 @@ Quest.py
 """
 import os
 import tkinter as tk
-import random
+import Generator
-import json
+import Config
-import time
 
-# 配置考卷
-quest_config = {
-    'A': {'num': 30, 'time': 40, 'pass': 25},
-    'B': {'num': 50, 'time': 60, 'pass': 40},
-    'C': {'num': 80, 'time': 90, 'pass': 60}
-}
 
 font = ('Microsoft YaHei', 13)
 
 
-# 模拟加载题目
-def generate_quests(type_str):
-    # 模拟从JSON文件加载题目
-    with open(f'quests/quests_{type_str}.json', 'r', encoding='utf-8') as f:
-        json_content = json.load(f)
-    list_quest = []
-    for obj in json_content:
-        list_quest.append(Quest(obj))
-    return random.sample(list_quest, quest_config[type_str]['num'])
-
-
-class Quest:
-    def __init__(self, json_obj):
-        self.index = json_obj['index']
-        self.question = json_obj['Q']
-        self.code = json_obj['I']
-        self.correct = json_obj['A']
-        self.options = [json_obj['A'], json_obj['B'], json_obj['C'], json_obj['D']]
-        self.random_options = random.sample(self.options, len(self.options))
-
-
 class ExamApp:
     def __init__(self, root):
         self.next_btn = None
@@ -70,8 +42,8 @@ class ExamApp:
 
     def start_exam(self, level):
         self.level = level
-        self.time_left = quest_config[level]['time'] * 60  # 转换为秒
+        self.time_left = Config.quest_config[level]['time'] * 60  # 转换为秒
-        self.quests = generate_quests(level)
+        self.quests = Generator.generate_quests(level)
         self.current_quest_index = 0
         self.selected_answers = {i: None for i in range(len(self.quests))}
         self.is_submitted = False
@@ -151,6 +123,7 @@ class ExamApp:
         else:
             # 显示正确答案
             self.correct_answer_label.config(text=f"正确答案: \n{quest.correct}")
+            self.update_nav_buttons()
 
         if self.current_quest_index == 0:
             self.prev_btn.config(state=tk.DISABLED)
@@ -167,13 +140,23 @@ class ExamApp:
         if not self.is_submitted:
             for i in range(len(self.quests)):
                 color = "yellow" if self.selected_answers[i] else "white"
+                if self.current_quest_index == i:
+                    color = "gray"
                 btn = tk.Button(self.ques_nav_frame, text=f"{i + 1}", bg=color,
                                 command=lambda idx=i: self.jump_to_question(idx))
                 btn.grid(row=i // 8, column=i % 8, sticky="nsew")
         else:
             for i in range(len(self.quests)):
                 quest = self.quests[i]
-                color = "green" if self.selected_answers[i] == quest.correct else "red"
+                # color = "green" if self.selected_answers[i] == quest.correct else "red"
+                color = "green"
+                if self.selected_answers[i] != quest.correct:
+                    color = "red"
+                if self.current_quest_index == i:
+                    if color == "green":
+                        color = "dark green"
+                    else:
+                        color = "dark red"
                 btn = tk.Button(self.ques_nav_frame, text=f"{i + 1}", bg=color,
                                 command=lambda idx=i: self.jump_to_question(idx))
                 btn.grid(row=i // 8, column=i % 8, sticky="nsew")
@@ -190,9 +173,15 @@ class ExamApp:
         self.is_submitted = True
         self.update_question()
         self.update_nav_buttons()
-        correct_count = sum(1 for i, quest in enumerate(self.quests) if self.selected_answers[i] == quest.correct)
+        correct_count = 0
+        for i, quest in enumerate(self.quests):
+            if self.selected_answers[i] == quest.correct:
+                correct_count += 1
+                Generator.reduce_weight(quest)
+            else:
+                Generator.enhance_weight(quest)
 
-        pass_score = quest_config[self.level]['pass']
+        pass_score = Config.quest_config[self.level]['pass']
         result_text = "通过" if correct_count >= pass_score else "未通过"
 
         self.timer_score_label.config(text=f"得分: {correct_count}/{len(self.quests)} - {result_text}")