C#替换字符串起始/结尾指定的字符串

　　　　 #region 替换字符串起始位置(开头)中指定的字符串/// <summary>  /// 替换字符串起始位置(开头)中指定的字符串  /// </summary>  /// <param name="s">源串</param>  /// <param name="searchStr">查找的串</param>  /// <param name="replaceStr">替换的目标串</param>  /// <returns></returns>  public static string CutStarStr(string s, string searchStr, string replaceStr){var result = s;try{if (string.IsNullOrEmpty(result)){return result;}if (s.Length < searchStr.Length){return result;}if (s.IndexOf(searchStr, 0, searchStr.Length, StringComparison.Ordinal) > -1){result = s.Substring(searchStr.Length);}return result;}catch (Exception e){return result;}}#endregion#region 替换字符串末尾位置中指定的字符串/// <summary>  /// 替换字符串末尾位置中指定的字符串  /// </summary>  /// <param name="s">源串</param>  /// <param name="searchStr">查找的串</param>  /// <param name="replaceStr">替换的目标串</param>  public static string CutEndStr(string s, string searchStr, string replaceStr){var result = s;try{if (string.IsNullOrEmpty(result)){return result;}if (s.Length < searchStr.Length){return result;}if (s.IndexOf(searchStr, s.Length - searchStr.Length, searchStr.Length, StringComparison.Ordinal) > -1){result = s.Substring(0, s.Length - searchStr.Length);}return result;}catch (Exception e){return result;}}#endregion

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