for problem in json_array:
		var problem_id = problem["id"]
		# 跳过占位符题目
		if "占位符" in problem["question"]:
			if not header_added:
				# 添加文件头信息
				var header_problem = problem.duplicate()
				header_problem["question"] = "错题集合 - 源自: " + file_name_ + " - 导出时间: " + time() 
				mistake_collection.append(header_problem)
				header_added = true
			continue
		
		# 如果是错题，添加到集合中
		if problem_id in mistakes:
			var mistake_problem = problem.duplicate()
			# 添加错题次数信息
			if mistake_count_dict.has(problem_id):
				mistake_problem["mistake_count"] = mistake_count_dict[problem_id]
			else:
				mistake_problem["mistake_count"] = 1
			mistake_collection.append(mistake_problem)
	
	if mistake_collection.size() <= 1:  # 只有文件头，没有实际错题
		return
	
	# 生成文件名：原文件名_年月日_时分.json
	var time_dict = Time.get_datetime_dict_from_system(false)
	var filename_suffix = "%04d%02d%02d_%02d%02d" % [
		time_dict["year"], time_dict["month"], time_dict["day"],
		time_dict["hour"], time_dict["minute"]
	]
	
	var mistake_filename = file_name_ + "_mistakes_" + filename_suffix + ".json"
	var mistake_file_path = exe_get_mistake_note_file().path_join(mistake_filename)
	
	# 保存错题集合文件
	var json_string = JSON.stringify(mistake_collection, "\t")
	var file = FileAccess.open(mistake_file_path, FileAccess.WRITE)
	if file:
		file.store_string(json_string)
		file.close()
		print("错题集合已导出: ", mistake_file_path)
		print("包含错题数量: ", mistake_collection.size() - 1)  # 减去文件头
	else:
		print("错题集合导出失败: ", mistake_file_path)

	for problem in json_array:
		var problem_id = problem["id"]
		# 跳过占位符题目
		if "占位符" in problem["question"]:
			if not header_added:
				# 添加文件头信息
				var header_problem = problem.duplicate()
				header_problem["question"] = "错题集合 - 源自: " + file_name_ + " - 导出时间: " + time() 
				mistake_collection.append(header_problem)
				header_added = true
			continue
		
		# 如果是错题，添加到集合中
		if problem_id in mistakes:
			var mistake_problem = problem.duplicate()
			# 添加错题次数信息
			if mistake_count_dict.has(problem_id):
				mistake_problem["mistake_count"] = mistake_count_dict[problem_id]
			else:
				mistake_problem["mistake_count"] = 1
			mistake_collection.append(mistake_problem)
	
	if mistake_collection.size() <= 1:  # 只有文件头，没有实际错题
		return
	
	# 生成文件名：原文件名_年月日_时分.json
	var time_dict = Time.get_datetime_dict_from_system(false)
	var filename_suffix = "%04d%02d%02d_%02d%02d" % [
		time_dict["year"], time_dict["month"], time_dict["day"],
		time_dict["hour"], time_dict["minute"]
	]
	
	var mistake_filename = file_name_ + "_mistakes_" + filename_suffix + ".json"
	var mistake_file_path = exe_get_mistake_note_file().path_join(mistake_filename)
	
	# 保存错题集合文件
	var json_string = JSON.stringify(mistake_collection, "\t")
	var file = FileAccess.open(mistake_file_path, FileAccess.WRITE)
	if file:
		file.store_string(json_string)
		file.close()
		print("错题集合已导出: ", mistake_file_path)
		print("包含错题数量: ", mistake_collection.size() - 1)  # 减去文件头
	else:
		print("错题集合导出失败: ", mistake_file_path)

if is_mistake_mode:
			# 匹配格式：原文件名_mistakes_年月日_时分
			var regex = RegEx.new()
			regex.compile(".*_mistakes_\\d{8}_\\d{4}$")
			should_show = regex.search(filename) != null
		# 题库模式：不显示包含日期格式的文件
		else:
			# 排除包含日期格式的文件
			var regex = RegEx.new()
			regex.compile(".*_mistakes_\\d{8}_\\d{4}$")
			should_show = regex.search(filename) == null

if is_mistake_mode:
			# 匹配格式：原文件名_mistakes_年月日_时分
			var regex = RegEx.new()
			regex.compile(".*_mistakes_\\d{8}_\\d{4}$")
			should_show = regex.search(filename) != null
		# 题库模式：不显示包含日期格式的文件
		else:
			# 排除包含日期格式的文件
			var regex = RegEx.new()
			regex.compile(".*_mistakes_\\d{8}_\\d{4}$")
			should_show = regex.search(filename) == null

class JsonQuestionBank:
    def __init__(self, file_path: str = 'questions.json'):
        self.file_path = file_path
        self.questions = self._load_questions()
        
    def _load_questions(self) -> List[Dict]:
        try:
            with open(self.file_path, 'r') as f:
                return json.load(f)
        except (FileNotFoundError, json.JSONDecodeError):
            return []
    
    def _save_questions(self):
        with open(self.file_path, 'w') as f:
            json.dump(self.questions, f, indent=2)
    
    def add(self, question: str, tags: str, options: List[str], answer: str) -> int:
        """添加题目并返回ID"""
        q_id = len(self.questions) + 1
        self.questions.append({
            'id': q_id,
            'tags':tags,
            'question': question,
            'options': options,
            'answer': answer
        })
        self._save_questions()
        return q_id
    
    def get(self, q_id: int) -> Dict:
        """根据ID获取题目"""
        return next((q for q in self.questions if q['id'] == q_id), None)
    
    def get_random(self) -> Dict:
        """随机获取一道题"""
        return random.choice(self.questions) if self.questions else None
    
    def delete(self, q_id: int) -> bool:
        """删除题目"""
        for i, q in enumerate(self.questions):
            if q['id'] == q_id:
                self.questions.pop(i)
                self._save_questions()
                return True
        return False

class JsonQuestionBank:
    def __init__(self, file_path: str = 'questions.json'):
        self.file_path = file_path
        self.questions = self._load_questions()
        
    def _load_questions(self) -> List[Dict]:
        try:
            with open(self.file_path, 'r') as f:
                return json.load(f)
        except (FileNotFoundError, json.JSONDecodeError):
            return []
    
    def _save_questions(self):
        with open(self.file_path, 'w') as f:
            json.dump(self.questions, f, indent=2)
    
    def add(self, question: str, tags: str, options: List[str], answer: str) -> int:
        """添加题目并返回ID"""
        q_id = len(self.questions) + 1
        self.questions.append({
            'id': q_id,
            'tags':tags,
            'question': question,
            'options': options,
            'answer': answer
        })
        self._save_questions()
        return q_id
    
    def get(self, q_id: int) -> Dict:
        """根据ID获取题目"""
        return next((q for q in self.questions if q['id'] == q_id), None)
    
    def get_random(self) -> Dict:
        """随机获取一道题"""
        return random.choice(self.questions) if self.questions else None
    
    def delete(self, q_id: int) -> bool:
        """删除题目"""
        for i, q in enumerate(self.questions):
            if q['id'] == q_id:
                self.questions.pop(i)
                self._save_questions()
                return True
        return False