From 97843ab5fd155ce50896403aa435473bfced3f2e Mon Sep 17 00:00:00 2001
From: SpecialX <47072643+wangxiner55@users.noreply.github.com>
Date: Fri, 30 May 2025 12:48:43 +0800
Subject: [PATCH] update-examParseByText

---
 TechHelper.Client/Exam/Exam/ExamParse.cs      | 627 ++++++++++++++++++
 .../Exam/Exam/QuestionCard.razor              |  43 ++
 .../Exam/SubMajorQuestionGroupDisplay.razor   |  43 ++
 TechHelper.Client/Exam/ExamParse.cs           | 429 ------------
 4 files changed, 713 insertions(+), 429 deletions(-)
 create mode 100644 TechHelper.Client/Exam/Exam/ExamParse.cs
 create mode 100644 TechHelper.Client/Exam/Exam/QuestionCard.razor
 create mode 100644 TechHelper.Client/Exam/Exam/SubMajorQuestionGroupDisplay.razor
 delete mode 100644 TechHelper.Client/Exam/ExamParse.cs

diff --git a/TechHelper.Client/Exam/Exam/ExamParse.cs b/TechHelper.Client/Exam/Exam/ExamParse.cs
new file mode 100644
index 0000000..1d4f155
--- /dev/null
+++ b/TechHelper.Client/Exam/Exam/ExamParse.cs
@@ -0,0 +1,627 @@
+using System.Text.RegularExpressions;
+
+namespace TechHelper.Client.Exam.Parse
+{
+	public class ExamPaper
+	{
+		public string Title { get; set; } = "未识别试卷标题";
+		public string Descript { get; set; } = "未识别试卷描述";
+		public string SubjectArea { get; set; } = "试卷类别";
+		public List<MajorQuestionGroup> MajorQuestionGroups { get; set; } = new List<MajorQuestionGroup>();
+		public List<Question> TopLevelQuestions { get; set; } = new List<Question>();
+	}
+
+	public class MajorQuestionGroup
+	{
+		public string Title { get; set; } = string.Empty;
+		public string Descript { get; set; } = string.Empty;
+		public float Score { get; set; }
+		public List<MajorQuestionGroup> SubMajorQuestionGroups { get; set; } = new List<MajorQuestionGroup>();
+		public List<Question> Questions { get; set; } = new List<Question>();
+		public int Priority { get; set; }
+	}
+
+	public class Question
+	{
+		public string Number { get; set; } = string.Empty;
+		public string Text { get; set; } = string.Empty;
+		public float Score { get; set; }
+		public List<Option> Options { get; set; } = new List<Option>();
+		public List<Question> SubQuestions { get; set; } = new List<Question>();
+		public int Priority { get; set; }
+	}
+
+	public class Option
+	{
+		public string Label { get; set; } = string.Empty;
+		public string Text { get; set; } = string.Empty;
+	}
+
+
+	/// <summary>
+	/// 表示一个带有优先级的正则表达式配置
+	/// </summary>
+	public class RegexPatternConfig
+	{
+		public string Pattern { get; set; } // 正则表达式字符串
+		public int Priority { get; set; }    // 优先级，数字越小优先级越高
+		public Regex Regex { get; private set; } // 编译后的Regex对象，用于性能优化
+
+		public RegexPatternConfig(string pattern, int priority)
+		{
+			Pattern = pattern;
+			Priority = priority;
+			Regex = new Regex(pattern, RegexOptions.Multiline | RegexOptions.Compiled); // 多行模式，编译以提高性能
+		}
+	}
+
+	/// <summary>
+	/// 试卷解析的配置类，包含所有正则表达式
+	/// </summary>
+	public class ExamParserConfig
+	{
+		public List<RegexPatternConfig> MajorQuestionGroupPatterns { get; set; } = new List<RegexPatternConfig>();
+		public List<RegexPatternConfig> QuestionPatterns { get; set; } = new List<RegexPatternConfig>();
+		public List<RegexPatternConfig> OptionPatterns { get; set; } = new List<RegexPatternConfig>();
+
+		public ExamParserConfig()
+		{
+			// --- 大题组模式 (MajorQuestionGroupPatterns) ---
+			// 匹配格式: "一、选择题 (20分)" 或 "二、阅读理解"
+			// Group 1: 大题组编号 (e.g., "一", "二")
+			// Group 2: 大题组标题 (e.g., "选择题", "阅读理解")
+			// Group 3: 整个分数部分 (e.g., "(20分)") - 可选
+			// Group 4: 纯数字分数 (e.g., "20") - 可选
+			MajorQuestionGroupPatterns.Add(new RegexPatternConfig(@"^([一二三四五六七八九十]+)[、\.]\s*(.+?)(?:\s*\(((\d+(?:\.\d+)?))\s*分\))?\s*$", 1));
+
+
+			// --- 题目模式 (QuestionPatterns) ---
+			// 针对不同格式的题目编号，捕获题号、题干和可选的分数
+			// Group 1: 题目编号 (e.g., "1", "(1)", "①")
+			// Group 2: 题干内容 (不含分数)
+			// Group 3: 整个分数部分 (e.g., "(5分)") - 可选
+			// Group 4: 纯数字分数 (e.g., "5") - 可选
+
+			// 模式 1: "1. 这是一个题目 (5分)" 或 "1. 这是一个题目"
+			QuestionPatterns.Add(new RegexPatternConfig(@"^(\d+)\.\s*(.+?)(?:\s*\(((\d+(?:\.\d+)?))\s*分\))?\s*$", 1));
+
+			// 模式 2: "(1) 这是一个子题目 (3分)" 或 "(1) 这是一个子题目"
+			QuestionPatterns.Add(new RegexPatternConfig(@"^\((\d+)\)\s*(.+?)(?:\s*\(((\d+(?:\.\d+)?))\s*分\))?\s*$", 2));
+
+			// 模式 3: "① 这是一个更深层次的子题目 (2分)" 或 "① 这是一个更深层次的子题目"
+			QuestionPatterns.Add(new RegexPatternConfig(@"^[①②③④⑤⑥⑦⑧⑨⑩]+\s*(.+?)(?:\s*\(((\d+(?:\.\d+)?))\s*分\))?\s*$", 3));
+
+
+			// --- 选项模式 (OptionPatterns) ---
+			// 匹配格式: "A. 选项内容"
+			// Group 1: 选项标签 (e.g., "A.")
+			// Group 2: 选项内容
+			OptionPatterns.Add(new RegexPatternConfig(@"^([A-Z]\.)\s*(.*)$", 1)); // 大写字母选项
+			OptionPatterns.Add(new RegexPatternConfig(@"^([a-z]\.)\s*(.*)$", 2)); // 小写字母选项
+
+
+			// --- 忽略模式 (IgnoredPatterns) ---
+			// 匹配空行或只包含空格的行，避免干扰解析流程
+			//IgnoredPatterns.Add(new RegexPatternConfig(@"^\s*$", 1));
+			//// 匹配试卷结尾的常见字符，防止被错误解析
+			//IgnoredPatterns.Add(new RegexPatternConfig(@"^\s*（试卷到此结束）\s*$", 1));
+			//IgnoredPatterns.Add(new RegexPatternConfig(@"^\s*（本卷共[0-9]+页）\s*$", 1));
+			// 标题和描述虽然你没要，但在实际解析中，这些模式有助于区分内容块，
+			// 否则它们可能会被其他模式（如题目模式）错误匹配。
+			// 建议你保留所有模式，但在本回复中，我只给出你要求的部分。
+		}
+	}
+
+
+
+
+	public class PotentialMatch
+	{
+		public int StartIndex { get; set; }
+		public int EndIndex { get; set; } // 匹配到的结构在原始文本中的结束位置
+		public string MatchedText { get; set; } // 匹配到的完整行或段落
+		public Match RegexMatch { get; set; } // 原始的Regex.Match对象，方便获取捕获组
+		public RegexPatternConfig PatternConfig { get; set; } // 匹配到的模式配置
+		public MatchType Type { get; set; } // 枚举：MajorQuestionGroup, Question, Option, etc.
+	}
+
+	public enum MatchType
+	{
+		MajorQuestionGroup,
+		Question,
+		Option,
+		Other // 如果有其他需要识别的类型
+	}
+
+
+	/// <summary>
+	/// 负责扫描原始文本，收集所有潜在的匹配项（题组、题目、选项）。
+	/// 它只进行匹配，不进行结构化归属。
+	/// </summary>
+	public class ExamDocumentScanner
+	{
+		private readonly ExamParserConfig _config;
+
+		public ExamDocumentScanner(ExamParserConfig config)
+		{
+			_config = config;
+		}
+
+		/// <summary>
+		/// 扫描给定的文本，返回所有潜在的匹配项，并按起始位置排序。
+		/// </summary>
+		/// <param name="text">要扫描的文本</param>
+		/// <returns>所有匹配到的 PotentialMatch 列表</returns>
+		public List<PotentialMatch> Scan(string text)
+		{
+			var allPotentialMatches = new List<PotentialMatch>();
+
+			// 扫描所有题组模式
+			foreach (var patternConfig in _config.MajorQuestionGroupPatterns)
+			{
+				foreach (Match match in patternConfig.Regex.Matches(text))
+				{
+					allPotentialMatches.Add(new PotentialMatch
+					{
+						StartIndex = match.Index,
+						EndIndex = match.Index + match.Length,
+						MatchedText = match.Value,
+						RegexMatch = match,
+						PatternConfig = patternConfig,
+						Type = MatchType.MajorQuestionGroup
+					});
+				}
+			}
+
+			// 扫描所有题目模式
+			foreach (var patternConfig in _config.QuestionPatterns)
+			{
+				foreach (Match match in patternConfig.Regex.Matches(text))
+				{
+					allPotentialMatches.Add(new PotentialMatch
+					{
+						StartIndex = match.Index,
+						EndIndex = match.Index + match.Length,
+						MatchedText = match.Value,
+						RegexMatch = match,
+						PatternConfig = patternConfig,
+						Type = MatchType.Question
+					});
+				}
+			}
+
+			// 扫描所有选项模式
+			foreach (var patternConfig in _config.OptionPatterns)
+			{
+				foreach (Match match in patternConfig.Regex.Matches(text))
+				{
+					allPotentialMatches.Add(new PotentialMatch
+					{
+						StartIndex = match.Index,
+						EndIndex = match.Index + match.Length,
+						MatchedText = match.Value,
+						RegexMatch = match,
+						PatternConfig = patternConfig,
+						Type = MatchType.Option
+					});
+				}
+			}
+
+			// 统一按起始位置排序
+			return allPotentialMatches.OrderBy(pm => pm.StartIndex).ToList();
+		}
+	}
+
+	public class ExamStructureBuilder
+	{
+		private readonly ExamParserConfig _config;
+
+		public ExamStructureBuilder(ExamParserConfig config)
+		{
+			_config = config ?? throw new ArgumentNullException(nameof(config), "ExamParserConfig cannot be null.");
+		}
+
+		public ExamPaper BuildExamPaper(string fullExamText, List<PotentialMatch> allPotentialMatches)
+		{
+			if (string.IsNullOrWhiteSpace(fullExamText))
+			{
+				throw new ArgumentException("Full exam text cannot be null or empty.", nameof(fullExamText));
+			}
+			if (allPotentialMatches == null)
+			{
+				throw new ArgumentNullException(nameof(allPotentialMatches), "Potential matches list cannot be null.");
+			}
+
+			var examPaper = new ExamPaper();
+			try
+			{
+				examPaper.Title = GetExamTitle(fullExamText);
+			}
+			catch (Exception ex)
+			{
+				throw new InvalidOperationException("Failed to extract exam title.", ex);
+			}
+
+			var majorQGStack = new Stack<MajorQuestionGroup>();
+			MajorQuestionGroup currentMajorQG = null;
+
+			var questionStack = new Stack<Question>();
+			Question currentQuestion = null;
+
+			int currentContentStart = 0;
+
+			if (allPotentialMatches.Any() && allPotentialMatches[0].StartIndex > 0)
+			{
+				string introText = fullExamText.Substring(0, allPotentialMatches[0].StartIndex).Trim();
+				if (!string.IsNullOrWhiteSpace(introText))
+				{
+					examPaper.Descript = introText; 
+				}
+			}
+
+			for (int i = 0; i < allPotentialMatches.Count; i++)
+			{
+				var pm = allPotentialMatches[i];
+
+				try
+				{
+					// Validate potential match data
+					if (pm.StartIndex < currentContentStart || pm.EndIndex > fullExamText.Length || pm.StartIndex > pm.EndIndex)
+					{
+						throw new ArgumentOutOfRangeException(
+							$"PotentialMatch at index {i} has invalid start/end indices. Start: {pm.StartIndex}, End: {pm.EndIndex}, CurrentContentStart: {currentContentStart}, FullTextLength: {fullExamText.Length}");
+					}
+					if (pm.RegexMatch == null || pm.PatternConfig == null)
+					{
+						throw new InvalidOperationException($"PotentialMatch at index {i} is missing RegexMatch or PatternConfig.");
+					}
+
+					string precedingText = fullExamText.Substring(currentContentStart, pm.StartIndex - currentContentStart).Trim();
+					if (!string.IsNullOrWhiteSpace(precedingText))
+					{
+						if (currentQuestion != null)
+						{
+							ProcessQuestionContent(currentQuestion, precedingText,
+								GetSubMatchesForRange(allPotentialMatches, currentContentStart, pm.StartIndex));
+						}
+						else if (currentMajorQG != null)
+						{
+							currentMajorQG.Descript += (string.IsNullOrWhiteSpace(currentMajorQG.Descript) ? "" : "\n") + precedingText;
+						}
+						else
+						{
+							// Append to ExamPaper.Description if it's top-level descriptive text
+							examPaper.Descript += (string.IsNullOrWhiteSpace(examPaper.Descript) ? "" : "\n") + precedingText;
+						}
+					}
+
+					if (pm.Type == MatchType.MajorQuestionGroup)
+					{
+						try
+						{
+							while (majorQGStack.Any() && pm.PatternConfig.Priority <= majorQGStack.Peek().Priority)
+							{
+								majorQGStack.Pop();
+							}
+
+							// Check if regex match groups exist before accessing
+							if (pm.RegexMatch.Groups.Count < 2)
+							{
+								throw new InvalidOperationException($"MajorQuestionGroup match at index {i} does not have enough regex groups for Title.");
+							}
+
+							float score = 0;
+							if (pm.RegexMatch.Groups.Count > 2 && pm.RegexMatch.Groups[2].Success)
+							{
+								if (!float.TryParse(pm.RegexMatch.Groups[2].Value, out score))
+								{
+									throw new FormatException($"Failed to parse score '{pm.RegexMatch.Groups[2].Value}' for MajorQuestionGroup at index {i}.");
+								}
+							}
+
+							MajorQuestionGroup newMajorQG = new MajorQuestionGroup
+							{
+								Title = pm.RegexMatch.Groups[1].Value.Trim(),
+								Score = score,
+								Priority = pm.PatternConfig.Priority
+							};
+
+							if (majorQGStack.Any())
+							{
+								majorQGStack.Peek().SubMajorQuestionGroups.Add(newMajorQG);
+							}
+							else
+							{
+								examPaper.MajorQuestionGroups.Add(newMajorQG);
+							}
+
+							majorQGStack.Push(newMajorQG);
+							currentMajorQG = newMajorQG;
+							questionStack.Clear();
+							currentQuestion = null;
+						}
+						catch (Exception ex)
+						{
+							throw new InvalidOperationException($"Error processing MajorQuestionGroup at index {i} (MatchedText: '{pm.MatchedText}').", ex);
+						}
+					}
+					else if (pm.Type == MatchType.Question)
+					{
+						try
+						{
+							while (questionStack.Any() && pm.PatternConfig.Priority <= questionStack.Peek().Priority)
+							{
+								questionStack.Pop();
+							}
+
+							if (pm.RegexMatch.Groups.Count < 3)
+							{
+								throw new InvalidOperationException($"Question match at index {i} does not have enough regex groups for Number and Text.");
+							}
+
+							Question newQuestion = new Question
+							{
+								Number = pm.RegexMatch.Groups[1].Value.Trim(),
+								Text = pm.RegexMatch.Groups[2].Value.Trim(),
+								Priority = pm.PatternConfig.Priority
+							};
+
+							if (pm.RegexMatch.Groups.Count > 3 && pm.RegexMatch.Groups[3].Success) // Assuming score is group 3 if available
+							{
+								float score = 0;
+								if (!float.TryParse(pm.RegexMatch.Groups[3].Value, out score))
+								{
+									throw new FormatException($"Failed to parse score '{pm.RegexMatch.Groups[3].Value}' for Question at index {i}.");
+								}
+								newQuestion.Score = score;
+							}
+
+							if (questionStack.Any())
+							{
+								questionStack.Peek().SubQuestions.Add(newQuestion);
+							}
+							else if (currentMajorQG != null)
+							{
+								currentMajorQG.Questions.Add(newQuestion);
+							}
+							else
+							{
+								examPaper.TopLevelQuestions.Add(newQuestion);
+							}
+
+							questionStack.Push(newQuestion);
+							currentQuestion = newQuestion;
+						}
+						catch (Exception ex)
+						{
+							throw new InvalidOperationException($"Error processing Question at index {i} (MatchedText: '{pm.MatchedText}').", ex);
+						}
+					}
+					else if (pm.Type == MatchType.Option)
+					{
+						try
+						{
+							if (currentQuestion != null)
+							{
+								if (pm.RegexMatch.Groups.Count < 3)
+								{
+									throw new InvalidOperationException($"Option match at index {i} does not have enough regex groups for Label and Text.");
+								}
+
+								Option newOption = new Option
+								{
+									Label = pm.RegexMatch.Groups[1].Value.Trim(),
+									Text = pm.RegexMatch.Groups[2].Value.Trim()
+								};
+								currentQuestion.Options.Add(newOption);
+							}
+							else
+							{
+								// This indicates a structural issue in the exam text
+								throw new InvalidOperationException($"Found isolated Option at index {i} (MatchedText: '{pm.MatchedText}'). Options must belong to a question.");
+							}
+						}
+						catch (Exception ex)
+						{
+							throw new InvalidOperationException($"Error processing Option at index {i} (MatchedText: '{pm.MatchedText}').", ex);
+						}
+					}
+
+					currentContentStart = pm.EndIndex;
+				}
+				catch (Exception ex)
+				{
+					// Catch any unexpected errors during the main loop iteration
+					throw new InvalidOperationException($"An unexpected error occurred during processing of PotentialMatch at index {i}.", ex);
+				}
+			}
+
+			// --- Step 4: Process remaining content after the last match ---
+			if (currentContentStart < fullExamText.Length)
+			{
+				try
+				{
+					string remainingText = fullExamText.Substring(currentContentStart).Trim();
+					if (!string.IsNullOrWhiteSpace(remainingText))
+					{
+						if (currentQuestion != null)
+						{
+							ProcessQuestionContent(currentQuestion, remainingText,
+								 GetSubMatchesForRange(allPotentialMatches, currentContentStart, fullExamText.Length));
+						}
+						else if (currentMajorQG != null)
+						{
+							currentMajorQG.Descript += (string.IsNullOrWhiteSpace(currentMajorQG.Descript) ? "" : "\n") + remainingText;
+						}
+						else
+						{
+							examPaper.Descript += (string.IsNullOrWhiteSpace(examPaper.Descript) ? "" : "\n") + remainingText;
+						}
+					}
+				}
+				catch (Exception ex)
+				{
+					throw new InvalidOperationException("Error processing remaining text after all potential matches.", ex);
+				}
+			}
+
+			return examPaper;
+		}
+
+		/// <summary>
+		/// Extracts the exam title (simple implementation)
+		/// </summary>
+		private string GetExamTitle(string examPaperText)
+		{
+			try
+			{
+				var firstLine = examPaperText.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries)
+											.FirstOrDefault(line => !string.IsNullOrWhiteSpace(line));
+				return firstLine ?? "未识别试卷标题";
+			}
+			catch (Exception ex)
+			{
+				throw new InvalidOperationException("An error occurred while trying to extract the exam title from the text.", ex);
+			}
+		}
+
+		/// <summary>
+		/// Gets a subset of the given PotentialMatch list within a specified range.
+		/// This method helps ProcessQuestionContent by providing Options and SubQuestions within that range.
+		/// </summary>
+		private List<PotentialMatch> GetSubMatchesForRange(List<PotentialMatch> allMatches, int start, int end)
+		{
+			try
+			{
+				// Input validation for range
+				if (start < 0 || end < start)
+				{
+					throw new ArgumentOutOfRangeException($"Invalid range provided to GetSubMatchesForRange. Start: {start}, End: {end}");
+				}
+				// Ensure allMatches is not null before querying
+				if (allMatches == null)
+				{
+					return new List<PotentialMatch>();
+				}
+
+				return allMatches.Where(pm => pm.StartIndex >= start && pm.StartIndex < end).ToList();
+			}
+			catch (Exception ex)
+			{
+				throw new InvalidOperationException($"Error getting sub-matches for range [{start}, {end}).", ex);
+			}
+		}
+
+		/// <summary>
+		/// Processes the content of a Question, mainly for parsing Options and identifying unstructured text.
+		/// </summary>
+		private void ProcessQuestionContent(Question question, string contentText, List<PotentialMatch> potentialMatchesInScope)
+		{
+			if (question == null)
+			{
+				throw new ArgumentNullException(nameof(question), "Question cannot be null in ProcessQuestionContent.");
+			}
+			if (contentText == null) // contentText can be empty, but not null
+			{
+				throw new ArgumentNullException(nameof(contentText), "Content text cannot be null in ProcessQuestionContent.");
+			}
+			if (potentialMatchesInScope == null)
+			{
+				throw new ArgumentNullException(nameof(potentialMatchesInScope), "Potential matches in scope cannot be null.");
+			}
+
+			try
+			{
+				int lastOptionEndIndex = 0;
+
+				foreach (var pm in potentialMatchesInScope.OrderBy(p => p.StartIndex))
+				{
+					try
+					{
+						if (pm.Type == MatchType.Option)
+						{
+							// Check for valid indices
+							if (pm.StartIndex < lastOptionEndIndex || pm.StartIndex > contentText.Length || pm.EndIndex > contentText.Length)
+							{
+								throw new ArgumentOutOfRangeException(
+									$"Option match at index {pm.StartIndex} has invalid indices within content text. MatchedText: '{pm.MatchedText}'");
+							}
+
+							if (pm.StartIndex > lastOptionEndIndex)
+							{
+								string textBeforeOption = contentText.Substring(lastOptionEndIndex, pm.StartIndex - lastOptionEndIndex).Trim();
+								if (!string.IsNullOrWhiteSpace(textBeforeOption))
+								{
+									question.Text += (string.IsNullOrWhiteSpace(question.Text) ? "" : "\n") + textBeforeOption;
+								}
+							}
+
+							if (pm.RegexMatch.Groups.Count < 3)
+							{
+								throw new InvalidOperationException($"Option regex match '{pm.MatchedText}' does not have enough groups for label and text.");
+							}
+
+							var newOption = new Option
+							{
+								Label = pm.RegexMatch.Groups[1].Value.Trim(),
+								Text = pm.RegexMatch.Groups[2].Value.Trim()
+							};
+							question.Options.Add(newOption);
+							lastOptionEndIndex = pm.EndIndex;
+						}
+						// TODO: If there are SubQuestion types, they can be processed similarly here.
+					}
+					catch (Exception innerEx)
+					{
+						throw new InvalidOperationException($"Error processing a potential match ({pm.Type}) within question content (MatchedText: '{pm.MatchedText}').", innerEx);
+					}
+				}
+
+				// Process any remaining text after all options
+				if (lastOptionEndIndex < contentText.Length)
+				{
+					string remainingContent = contentText.Substring(lastOptionEndIndex).Trim();
+					if (!string.IsNullOrWhiteSpace(remainingContent))
+					{
+						question.Text += (string.IsNullOrWhiteSpace(question.Text) ? "" : "\n") + remainingContent;
+					}
+				}
+			}
+			catch (Exception ex)
+			{
+				throw new InvalidOperationException($"An error occurred while processing content for Question '{question.Number}'.", ex);
+			}
+		}
+	}
+
+	public class ExamParser
+	{
+		private readonly ExamParserConfig _config;
+		private readonly ExamDocumentScanner _scanner;
+		private readonly ExamStructureBuilder _builder;
+
+		public ExamParser(ExamParserConfig config)
+		{
+			_config = config;
+			_scanner = new ExamDocumentScanner(_config);
+			_builder = new ExamStructureBuilder(_config);
+		}
+
+		/// <summary>
+		/// 解析给定的试卷文本，返回结构化的 ExamPaper 对象。
+		/// </summary>
+		/// <param name="examPaperText">完整的试卷文本</param>
+		/// <returns>解析后的 ExamPaper 对象</returns>
+		public ExamPaper ParseExamPaper(string examPaperText)
+		{
+			// 1. 扫描：一次性扫描整个文本，收集所有潜在的匹配项
+			List<PotentialMatch> allPotentialMatches = _scanner.Scan(examPaperText);
+
+			// 2. 构建：根据扫描结果和原始文本，线性遍历并构建层级结构
+			ExamPaper parsedExam = _builder.BuildExamPaper(examPaperText, allPotentialMatches);
+
+			return parsedExam;
+		}
+	}
+
+}
\ No newline at end of file
diff --git a/TechHelper.Client/Exam/Exam/QuestionCard.razor b/TechHelper.Client/Exam/Exam/QuestionCard.razor
new file mode 100644
index 0000000..be78898
--- /dev/null
+++ b/TechHelper.Client/Exam/Exam/QuestionCard.razor
@@ -0,0 +1,43 @@
+@using TechHelper.Client.Exam.Parse
+
+<MudCard Class="my-2 pa-2" Outlined="true" Elevation="1">
+    <MudCardContent>
+        <MudText Typo="Typo.subtitle1">
+            <b>@Question.Number</b> @((MarkupString)Question.Text)
+            @if (Question.Score > 0)
+            {
+                <MudText Typo="Typo.body2" Class="d-inline ml-2">(@Question.Score 分)</MudText>
+            }
+        </MudText>
+
+        @* 显示选项 - 不使用 MudList *@
+        @if (Question.Options.Any())
+        {
+            <div class="mt-2">
+                @* 使用普通的 div 容器，你可以添加自定义 CSS 类进行样式控制 *@
+                @foreach (var option in Question.Options)
+                {
+                    <MudText Typo="Typo.body2" Class="my-1">
+                        @* 为每个选项文本添加一些边距 *@
+                        <b>@option.Label</b> @((MarkupString)option.Text)
+                    </MudText>
+                }
+            </div>
+        }
+
+        @* 递归显示子题目 *@
+        @if (Question.SubQuestions.Any())
+        {
+            <MudText Typo="Typo.subtitle2" Class="my-2">子题目:</MudText>
+            @foreach (var subQuestion in Question.SubQuestions)
+            {
+                <QuestionCard Question="subQuestion" />
+            }
+        }
+    </MudCardContent>
+</MudCard>
+
+@code {
+    [Parameter]
+    public Question Question { get; set; }
+}
\ No newline at end of file
diff --git a/TechHelper.Client/Exam/Exam/SubMajorQuestionGroupDisplay.razor b/TechHelper.Client/Exam/Exam/SubMajorQuestionGroupDisplay.razor
new file mode 100644
index 0000000..bf3f24e
--- /dev/null
+++ b/TechHelper.Client/Exam/Exam/SubMajorQuestionGroupDisplay.razor
@@ -0,0 +1,43 @@
+@using TechHelper.Client.Exam.Parse
+@* SubMajorQuestionGroupDisplay.razor *@
+<MudExpansionPanels>
+    @foreach (var majorQG in MajorQGList)
+    {
+        <MudExpansionPanel Text="@majorQG.Title" DisableRipple="true">
+            <MudCard Class="mt-2" Outlined="true">
+                <MudCardContent>
+                    @if (!string.IsNullOrWhiteSpace(majorQG.Descript))
+                    {
+                        <MudText Typo="Typo.body2"><b>描述:</b> @((MarkupString)majorQG.Descript)</MudText>
+                    }
+                    @if (majorQG.Score > 0)
+                    {
+                        <MudText Typo="Typo.body2"><b>总分:</b> @majorQG.Score 分</MudText>
+                    }
+
+                    @* 显示当前子题组下的题目 *@
+                    @if (majorQG.Questions.Any())
+                    {
+                        <MudText Typo="Typo.subtitle1" Class="my-2">题目:</MudText>
+                        @foreach (var question in majorQG.Questions)
+                        {
+                            <QuestionCard Question="question" />
+                        }
+                    }
+
+                    @* 递归显示更深层次的子题组 *@
+                    @if (majorQG.SubMajorQuestionGroups.Any())
+                    {
+                        <MudText Typo="Typo.subtitle1" Class="my-2">子题组:</MudText>
+                        <SubMajorQuestionGroupDisplay MajorQGList="majorQG.SubMajorQuestionGroups" /> 
+                    }
+                </MudCardContent>
+            </MudCard>
+        </MudExpansionPanel>
+    }
+</MudExpansionPanels>
+
+@code {
+    [Parameter]
+    public List<MajorQuestionGroup> MajorQGList { get; set; }
+}
\ No newline at end of file
diff --git a/TechHelper.Client/Exam/ExamParse.cs b/TechHelper.Client/Exam/ExamParse.cs
deleted file mode 100644
index 6b1e012..0000000
--- a/TechHelper.Client/Exam/ExamParse.cs
+++ /dev/null
@@ -1,429 +0,0 @@
-using System.Text.RegularExpressions;
-
-namespace TechHelper.Client.Exam.Parse
-{
-	public class ExamPaper
-	{
-		public string Title { get; set; } = "未识别试卷标题";
-		public string Descript { get; set; } = "未识别试卷描述";
-		public string SubjectArea { get; set; } = "试卷类别";
-		public List<MajorQuestionGroup> MajorQuestionGroups { get; set; } = new List<MajorQuestionGroup>();
-		public List<Question> TopLevelQuestions { get; set; } = new List<Question>();
-	}
-
-	public class MajorQuestionGroup
-	{
-		public string Title { get; set; } = string.Empty;
-		public string Descript { get; set; } = string.Empty;
-		public float Score { get; set; }
-		public List<MajorQuestionGroup> SubMajorQuestionGroups { get; set; } = new List<MajorQuestionGroup>();
-		public List<Question> Questions { get; set; } = new List<Question>();
-		public int Priority { get; set; }
-	}
-
-	public class Question
-	{
-		public string Number { get; set; } = string.Empty;
-		public string Text { get; set; } = string.Empty;
-		public float Score { get; set; }
-		public List<Option> Options { get; set; } = new List<Option>();
-		public List<Question> SubQuestions { get; set; } = new List<Question>();
-		public int Priority { get; set; }
-	}
-
-	public class Option
-	{
-		public string Label { get; set; } = string.Empty;
-		public string Text { get; set; } = string.Empty;
-	}
-
-
-	/// <summary>
-	/// 表示一个带有优先级的正则表达式配置
-	/// </summary>
-	public class RegexPatternConfig
-	{
-		public string Pattern { get; set; } // 正则表达式字符串
-		public int Priority { get; set; }    // 优先级，数字越小优先级越高
-		public Regex Regex { get; private set; } // 编译后的Regex对象，用于性能优化
-
-		public RegexPatternConfig(string pattern, int priority)
-		{
-			Pattern = pattern;
-			Priority = priority;
-			Regex = new Regex(pattern, RegexOptions.Multiline | RegexOptions.Compiled); // 多行模式，编译以提高性能
-		}
-	}
-
-	/// <summary>
-	/// 试卷解析的配置类，包含所有正则表达式
-	/// </summary>
-	public class ExamParserConfig
-	{
-		public List<RegexPatternConfig> MajorQuestionGroupPatterns { get; set; } = new List<RegexPatternConfig>();
-		public List<RegexPatternConfig> QuestionPatterns { get; set; } = new List<RegexPatternConfig>();
-		public List<RegexPatternConfig> OptionPatterns { get; set; } = new List<RegexPatternConfig>();
-
-		public ExamParserConfig()
-		{
-			MajorQuestionGroupPatterns.Add(new RegexPatternConfig(@"^[一二三四五六七八九十]+\s*[、.]\s*(.+?)(?:\s*\((\d+)\s*分\))?$", 1)); // 如: 一、选择题 (5分)
-			MajorQuestionGroupPatterns.Add(new RegexPatternConfig(@"^\d+\.\s*(.+?)(?:\s*\((\d+)\s*分\))?$", 2)); // 如: 1. 填空题 (10分)
-			MajorQuestionGroupPatterns.Add(new RegexPatternConfig(@"^(\(.+\))\s*(.+?)(?:\s*\((\d+)\s*分\))?$", 3)); // 如: (一) 文言文阅读 (8分)
-
-			QuestionPatterns.Add(new RegexPatternConfig(@"^(\d+)\.\s*(.*)$", 1)); // 如: 1. 题干
-			OptionPatterns.Add(new RegexPatternConfig(@"^[A-D]\.\s*(.*)$", 1));   // 如: A. 选项内容
-		}
-	}
-
-
-
-
-	public class PotentialMatch
-	{
-		public int StartIndex { get; set; }
-		public int EndIndex { get; set; } // 匹配到的结构在原始文本中的结束位置
-		public string MatchedText { get; set; } // 匹配到的完整行或段落
-		public Match RegexMatch { get; set; } // 原始的Regex.Match对象，方便获取捕获组
-		public RegexPatternConfig PatternConfig { get; set; } // 匹配到的模式配置
-		public MatchType Type { get; set; } // 枚举：MajorQuestionGroup, Question, Option, etc.
-	}
-
-	public enum MatchType
-	{
-		MajorQuestionGroup,
-		Question,
-		Option,
-		Other // 如果有其他需要识别的类型
-	}
-
-
-	/// <summary>
-	/// 负责扫描原始文本，收集所有潜在的匹配项（题组、题目、选项）。
-	/// 它只进行匹配，不进行结构化归属。
-	/// </summary>
-	public class ExamDocumentScanner
-	{
-		private readonly ExamParserConfig _config;
-
-		public ExamDocumentScanner(ExamParserConfig config)
-		{
-			_config = config;
-		}
-
-		/// <summary>
-		/// 扫描给定的文本，返回所有潜在的匹配项，并按起始位置排序。
-		/// </summary>
-		/// <param name="text">要扫描的文本</param>
-		/// <returns>所有匹配到的 PotentialMatch 列表</returns>
-		public List<PotentialMatch> Scan(string text)
-		{
-			var allPotentialMatches = new List<PotentialMatch>();
-
-			// 扫描所有题组模式
-			foreach (var patternConfig in _config.MajorQuestionGroupPatterns)
-			{
-				foreach (Match match in patternConfig.Regex.Matches(text))
-				{
-					allPotentialMatches.Add(new PotentialMatch
-					{
-						StartIndex = match.Index,
-						EndIndex = match.Index + match.Length,
-						MatchedText = match.Value,
-						RegexMatch = match,
-						PatternConfig = patternConfig,
-						Type = MatchType.MajorQuestionGroup
-					});
-				}
-			}
-
-			// 扫描所有题目模式
-			foreach (var patternConfig in _config.QuestionPatterns)
-			{
-				foreach (Match match in patternConfig.Regex.Matches(text))
-				{
-					allPotentialMatches.Add(new PotentialMatch
-					{
-						StartIndex = match.Index,
-						EndIndex = match.Index + match.Length,
-						MatchedText = match.Value,
-						RegexMatch = match,
-						PatternConfig = patternConfig,
-						Type = MatchType.Question
-					});
-				}
-			}
-
-			// 扫描所有选项模式
-			foreach (var patternConfig in _config.OptionPatterns)
-			{
-				foreach (Match match in patternConfig.Regex.Matches(text))
-				{
-					allPotentialMatches.Add(new PotentialMatch
-					{
-						StartIndex = match.Index,
-						EndIndex = match.Index + match.Length,
-						MatchedText = match.Value,
-						RegexMatch = match,
-						PatternConfig = patternConfig,
-						Type = MatchType.Option
-					});
-				}
-			}
-
-			// 统一按起始位置排序
-			return allPotentialMatches.OrderBy(pm => pm.StartIndex).ToList();
-		}
-	}
-
-public class ExamStructureBuilder
-	{
-		private readonly ExamParserConfig _config;
-
-		public ExamStructureBuilder(ExamParserConfig config)
-		{
-			_config = config;
-		}
-
-		public ExamPaper BuildExamPaper(string fullExamText, List<PotentialMatch> allPotentialMatches)
-		{
-			var examPaper = new ExamPaper();
-			examPaper.Title = GetExamTitle(fullExamText);
-
-			var majorQGStack = new Stack<MajorQuestionGroup>();
-			MajorQuestionGroup currentMajorQG = null; 
-
-			var questionStack = new Stack<Question>();
-			Question currentQuestion = null; 
-
-			int currentContentStart = 0; 
-
-
-			if (allPotentialMatches.Any() && allPotentialMatches[0].StartIndex > 0)
-			{
-				string introText = fullExamText.Substring(0, allPotentialMatches[0].StartIndex).Trim();
-				// 可以选择将这部分文本存储到 ExamPaper 的某个属性，例如 ExamPaper.Description
-			}
-
-
-			// 这里需要处理currentContentStart的位置,到allPotentialMatches[0].StartIndex
-
-
-			for (int i = 0; i < allPotentialMatches.Count; i++)
-			{
-				var pm = allPotentialMatches[i];
-
-				string precedingText = fullExamText.Substring(currentContentStart, pm.StartIndex - currentContentStart).Trim();
-				if (!string.IsNullOrWhiteSpace(precedingText))
-				{
-					if (currentQuestion != null)
-					{
-						ProcessQuestionContent(currentQuestion, precedingText,
-							GetSubMatchesForRange(allPotentialMatches, currentContentStart, pm.StartIndex));
-					}
-					else if (currentMajorQG != null)
-					{
-						currentMajorQG.Descript += (string.IsNullOrWhiteSpace(currentMajorQG.Descript) ? "" : "\n") + precedingText;
-					}
-					else
-					{
-						// 暂时忽略，或可以添加到 ExamPaper.Description
-					}
-				}
-
-				if (pm.Type == MatchType.MajorQuestionGroup)
-				{
-					// 1. 确定当前 MajorQuestionGroup 的层级关系
-					while (majorQGStack.Any() && pm.PatternConfig.Priority <= majorQGStack.Peek().Priority)
-					{
-						// 当前 QG 的优先级等于或高于栈顶 QG，说明栈顶 QG 已经结束
-						majorQGStack.Pop();
-					}
-
-					MajorQuestionGroup newMajorQG = new MajorQuestionGroup
-					{
-						Title = pm.RegexMatch.Groups[1].Value.Trim(),
-						Score = (pm.RegexMatch.Groups.Count > 2 && pm.RegexMatch.Groups[2].Success) ? float.Parse(pm.RegexMatch.Groups[2].Value) : 0,
-						Priority = pm.PatternConfig.Priority
-					};
-
-					if (majorQGStack.Any())
-					{
-						majorQGStack.Peek().SubMajorQuestionGroups.Add(newMajorQG);
-					}
-					else
-					{
-						examPaper.MajorQuestionGroups.Add(newMajorQG);
-					}
-
-					majorQGStack.Push(newMajorQG); 
-					currentMajorQG = newMajorQG;
-					questionStack.Clear();
-					currentQuestion = null;
-				}
-				else if (pm.Type == MatchType.Question)
-				{
-					// 1. 确定当前 Question 的层级关系（子题目）
-					// 找到比当前 Question 优先级高或相等的 Question 作为其父级
-					while (questionStack.Any() && pm.PatternConfig.Priority <= questionStack.Peek().Priority)
-					{
-						// 如果当前 Question 的优先级等于或高于栈顶 Question，说明栈顶 Question 已经结束
-						questionStack.Pop();
-					}
-
-					Question newQuestion = new Question
-					{
-						Number = pm.RegexMatch.Groups[1].Value.Trim(),
-						Text = pm.RegexMatch.Groups[2].Value.Trim(),
-						Priority = pm.PatternConfig.Priority
-					};
-					if (pm.RegexMatch.Groups.Count > 2 && pm.RegexMatch.Groups[2].Success)
-					{
-						float.TryParse(pm.RegexMatch.Groups[2].Value, out float score);
-						newQuestion.Score = score;
-					}
-
-					if (questionStack.Any())
-					{
-						questionStack.Peek().SubQuestions.Add(newQuestion);
-					}
-					else if (currentMajorQG != null)
-					{
-						// 归属于当前活跃的 MajorQuestionGroup
-						currentMajorQG.Questions.Add(newQuestion);
-					}
-					else
-					{
-						// 没有活跃的 MajorQuestionGroup 或 Question，作为 ExamPaper 的顶级 Questions
-						examPaper.TopLevelQuestions.Add(newQuestion);
-					}
-
-					questionStack.Push(newQuestion); // 新的 Question 入栈，成为当前活跃 Question
-					currentQuestion = newQuestion;
-				}
-				else if (pm.Type == MatchType.Option)
-				{
-					// 选项必须归属于一个题目
-					if (currentQuestion != null)
-					{
-						Option newOption = new Option
-						{
-							Label = pm.RegexMatch.Groups[1].Value.Trim(),
-							Text = pm.RegexMatch.Groups[2].Value.Trim()
-						};
-						currentQuestion.Options.Add(newOption);
-					}
-					else
-					{
-						// 孤立的选项，可能需要日志记录或错误处理
-						Console.WriteLine($"Warning: Found isolated Option at index {pm.StartIndex}: {pm.MatchedText}");
-					}
-				}
-
-				// --- 步骤3: 更新 currentContentStart 为当前匹配点的 EndIndex ---
-				// 下一次循环将从这里开始提取内容
-				currentContentStart = pm.EndIndex;
-			}
-
-			// --- 步骤4: 处理循环结束后，最后一个匹配点之后到文本末尾的剩余内容 ---
-			if (currentContentStart < fullExamText.Length)
-			{
-				string remainingText = fullExamText.Substring(currentContentStart).Trim();
-				if (!string.IsNullOrWhiteSpace(remainingText))
-				{
-					if (currentQuestion != null)
-					{
-						// 最后一个题目后面的内容（可能是选项或多行描述）
-						ProcessQuestionContent(currentQuestion, remainingText,
-							 GetSubMatchesForRange(allPotentialMatches, currentContentStart, fullExamText.Length));
-					}
-					else if (currentMajorQG != null)
-					{
-						// 最后一个题组后面的内容（可能是描述或题目）
-						currentMajorQG.Descript += (string.IsNullOrWhiteSpace(currentMajorQG.Descript) ? "" : "\n") + remainingText;
-					}
-					else
-					{
-						// 顶级剩余文本，可能作为 ExamPaper 的整体描述
-						// examPaper.Description += remainingText;
-					}
-				}
-			}
-
-			return examPaper;
-		}
-
-		/// <summary>
-		/// 提取试卷标题 (简单实现)
-		/// </summary>
-		private string GetExamTitle(string examPaperText)
-		{
-			var firstLine = examPaperText.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries)
-										  .FirstOrDefault(line => !string.IsNullOrWhiteSpace(line));
-			return firstLine ?? "未识别试卷标题";
-		}
-
-		/// <summary>
-		/// 获取给定 PotentialMatch 列表在指定范围内的子集。
-		/// 这个方法用于辅助 ProcessQuestionContent，为其提供该范围内的 Options 和 SubQuestions。
-		/// </summary>
-		private List<PotentialMatch> GetSubMatchesForRange(List<PotentialMatch> allMatches, int start, int end)
-		{
-			// 注意：这里需要考虑 potentialMatches 的索引与 fullExamText 索引的映射
-			// 这里的 StartIndex 是相对于 fullExamText 的
-			return allMatches.Where(pm => pm.StartIndex >= start && pm.StartIndex < end).ToList();
-		}
-
-		/// <summary>
-		/// 处理 Question 的内容，主要用于解析 Options 和识别非结构化文本。
-		/// </summary>
-		private void ProcessQuestionContent(Question question, string contentText, List<PotentialMatch> potentialMatchesInScope)
-		{
-			// 遍历当前范围内的所有 PotentialMatch，找出 Options
-			var optionsText = new System.Text.StringBuilder();
-			int lastOptionEndIndex = 0; // 记录最后一个处理的选项的结束位置
-
-			foreach (var pm in potentialMatchesInScope.OrderBy(p => p.StartIndex))
-			{
-				// 检查是否是选项
-				if (pm.Type == MatchType.Option)
-				{
-					// 收集选项之间的文本作为题干的延续或描述
-					if (pm.StartIndex > lastOptionEndIndex)
-					{
-						string textBeforeOption = contentText.Substring(lastOptionEndIndex, pm.StartIndex - lastOptionEndIndex).Trim();
-						if (!string.IsNullOrWhiteSpace(textBeforeOption))
-						{
-							question.Text += (string.IsNullOrWhiteSpace(question.Text) ? "" : "\n") + textBeforeOption;
-						}
-					}
-
-					var newOption = new Option
-					{
-						Label = pm.RegexMatch.Groups[1].Value.Trim(),
-						Text = pm.RegexMatch.Groups[2].Value.Trim()
-					};
-					question.Options.Add(newOption);
-					lastOptionEndIndex = pm.EndIndex;
-				}
-				// TODO: 如果有 SubQuestion 类型，在这里也可以类似处理
-				// else if (pm.Type == MatchType.Question && pm.PatternConfig.Priority > question.Priority)
-				// {
-				//     // 这是一个子题目，需要进一步解析
-				//     // 递归调用，但这里的逻辑会更复杂，因为需要识别子题目自己的Options
-				//     // 可能会在这里创建一个临时的 Question，然后递归 ProcessQuestionContent
-				// }
-			}
-
-			// 处理所有选项之后剩余的文本
-			if (lastOptionEndIndex < contentText.Length)
-			{
-				string remainingContent = contentText.Substring(lastOptionEndIndex).Trim();
-				if (!string.IsNullOrWhiteSpace(remainingContent))
-				{
-					question.Text += (string.IsNullOrWhiteSpace(question.Text) ? "" : "\n") + remainingContent;
-				}
-			}
-		}
-	}
-
-}
\ No newline at end of file