豆包给出代码
/// <summary>
/// 字符串差异提取工具类（仅使用原字符串字符）
/// </summary>
public static class StringDiffExtractor
{/// <summary>/// 从字符串列表中提取差异部分，差异部分仅包含原字符串已有字符，且长度不小于指定最小值（若原字符串长度允许）/// </summary>/// <param name="inputStrings">输入的字符串列表</param>/// <param name="minLength">差异部分的最小长度（必须大于0）</param>/// <returns>各字符串对应的差异部分（完全来自原字符串）</returns>/// <exception cref="ArgumentOutOfRangeException">当minLength小于或等于0时抛出</exception>public static List<string> ExtractDiffParts(List<string> inputStrings, int minLength){List<string> diffResults = new List<string>();if (inputStrings == null || inputStrings.Count == 0)return diffResults;// 单元素场景：差异部分就是字符串本身（长度不足时返回全部，不补位）if (inputStrings.Count == 1){string singleStr = inputStrings[0];diffResults.Add(singleStr); // 直接返回原字符串，不添加任何外部字符return diffResults;}int commonPrefixLength = CalculateCommonPrefixLength(inputStrings);int commonSuffixLength = CalculateCommonSuffixLength(inputStrings);foreach (string str in inputStrings){// 1. 原始差异区域（前缀后、后缀前）int originalDiffStart = commonPrefixLength;int originalDiffLength = str.Length - commonPrefixLength - commonSuffixLength;// 2. 计算需要扩展的长度（但不能超出字符串范围）int needExtendLength = Math.Max(0, minLength - originalDiffLength);int maxPossibleExtend = originalDiffStart; // 最多能向前扩展的长度（不能超过前缀起始位置）int actualExtendLength = Math.Min(needExtendLength, maxPossibleExtend);// 3. 调整提取范围（确保所有字符都来自原字符串）int adjustedStartIndex = originalDiffStart - actualExtendLength;int adjustedDiffLength = originalDiffLength + actualExtendLength;// 4. 最终提取（若总长度仍不足minLength，返回能提取的最大长度）if (adjustedStartIndex + adjustedDiffLength > str.Length){adjustedDiffLength = str.Length - adjustedStartIndex;}string diffPart = adjustedDiffLength > 0? str.Substring(adjustedStartIndex, adjustedDiffLength): string.Empty;diffResults.Add(diffPart);}return diffResults;}/// <summary>计算共同前缀长度</summary>private static int CalculateCommonPrefixLength(List<string> strings){int minStrLength = strings.Min(s => s.Length);for (int i = 0; i < minStrLength; i++){char currentChar = strings[0][i];if (strings.Any(s => s[i] != currentChar))return i;}return minStrLength;}/// <summary>计算共同后缀长度</summary>private static int CalculateCommonSuffixLength(List<string> strings){int minStrLength = strings.Min(s => s.Length);for (int i = 1; i <= minStrLength; i++){char currentChar = strings[0][strings[0].Length - i];if (strings.Any(s => s.Length < i || s[s.Length - i] != currentChar))return i - 1;}return minStrLength;}public static void Test1(){// 测试数据var testData = new List<string>{"2T1283223072900029D1ZZZ","2T1283223072900028D2ZZZ","2T1283223072900027D3ZZZ","2T1283223072900026D4ZZZ","2T1283223072900025D5ZZZ","2T1283223072900024D6ZZZ"};var results1 = StringDiffExtractor.ExtractDiffParts(testData, 0);testData = new List<string>{"NL5285A24071300005DEDF","NL5285A24071300004DEDF","NL5285A24071300003DEDF","NL5285A24071300002DEDF"};var results2 = StringDiffExtractor.ExtractDiffParts(testData, 0);testData = new List<string>{"NL5285A24071300005","NL5285A24071300004","NL5285A24071300003","NL5285A24071300002"};var results3 = StringDiffExtractor.ExtractDiffParts(testData, 0);testData = new List<string>{"E26U00089","E26U00090","E26U00091"};var results4 = StringDiffExtractor.ExtractDiffParts(testData, 0);}public static void Test2(){// 测试数据var testData = new List<string>{"2T1283223072900029D1ZZZ","2T1283223072900028D2ZZZ","2T1283223072900027D3ZZZ","2T1283223072900026D4ZZZ","2T1283223072900025D5ZZZ","2T1283223072900024D6ZZZ"};var results1 = StringDiffExtractor.ExtractDiffParts(testData, 4);testData = new List<string>{"NL5285A24071300005DEDF","NL5285A24071300004DEDF","NL5285A24071300003DEDF","NL5285A24071300002DEDF"};var results2 = StringDiffExtractor.ExtractDiffParts(testData, 4);testData = new List<string>{"NL5285A24071300005","NL5285A24071300004","NL5285A24071300003","NL5285A24071300002"};var results3 = StringDiffExtractor.ExtractDiffParts(testData, 4);testData = new List<string>{"E26U00089","E26U00090","E26U00091"};var results4 = StringDiffExtractor.ExtractDiffParts(testData, 4);}
}
 - 指南)
