?#region 格式化
??????? /// <summary>
??????? /// 格式化
??????? /// </summary>
??????? /// <param name="sInput">本身字符串</param>
??????? /// <param name="args"></param>
??????? /// <returns></returns>??????
??????? public static string format(this string sInput, params object[] args)
??????? {
??????????? return String.Format(sInput, args);
??????? }
??????? #endregion

??????? #region 倒轉字符串
??????? /// <summary>
??????? /// 倒轉字符串
??????? /// </summary>
??????? public static string Reverse(this string sInput)
??????? {
??????????? char[] chars = sInput.ToCharArray();
??????????? Array.Reverse(chars);
??????????? return new String(chars);
??????? }
??????? #endregion

??????? #region 判斷是否為email
??????? /// <summary>
??????? /// 判斷是否為email
??????? /// </summary>
??????? /// <param name="email"></param>
??????? /// <returns></returns>
??????? public static bool IsEmail(string email)
??????? {
??????????? if (string.IsNullOrWhiteSpace(email))
??????????? {
??????????????? return false;
??????????? }
??????????? string pattern = "\\w+([-+.']\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*";
??????????? return Regex.IsMatch(email, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????? }
??????? #endregion

??????? #region 判斷是否為手機號
??????? /// <summary>
??????? /// 判斷是否為手機號
??????? /// </summary>
??????? /// <param name="mobile"></param>
??????? /// <returns></returns>
??????? public static bool IsMobile(string mobile)
??????? {
??????????? if (string.IsNullOrWhiteSpace(mobile))
??????????? {
??????????????? return false;
??????????? }
??????????? string pattern = "^(13|15|18)[0-9]{9}$";
??????????? return Regex.IsMatch(mobile, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????? }
??????? #endregion

??????? #region 判斷是否為電話
??????? /// <summary>
??????? /// 判斷是否為電話
??????? /// </summary>
??????? /// <param name="phone">0755-45784678-85</param>
??????? /// <returns></returns>
??????? public static bool IsPhone(string phone)
??????? {
??????????? if (string.IsNullOrWhiteSpace(phone))
??????????? {
??????????????? return false;
??????????? }
??????????? string pattern = "^(([0-9]{3,4})|[0-9]{3,4}-)?[0-9]{7,8}(-[0-9]{2,4})?$";
??????????? return Regex.IsMatch(phone, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????? }
??????? #endregion

??????? #region 判斷是否為郵編
??????? /// <summary>
??????? /// 判斷是否為郵編
??????? /// </summary>
??????? /// <param name="phone">415118</param>
??????? /// <returns></returns>
??????? public static bool IsPostCode(string postcode)
??????? {
??????????? if (string.IsNullOrWhiteSpace(postcode))
??????????? {
??????????????? return false;
??????????? }
??????????? string pattern = "^[0-9]{6}$";
??????????? return Regex.IsMatch(postcode, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????? }
??????? #endregion

??????? #region 是否有效的姓名
??????? /// <summary>
??????? /// 是否有效的姓名
??????? /// </summary>
??????? /// <param name="name"></param>
??????? /// <returns></returns>
??????? public static bool IsValidName(string name)
??????? {
??????????? if (string.IsNullOrWhiteSpace(name))
??????????? {
??????????????? return false;
??????????? }
??????????? string pattern = "^(([\u4e00-\u9fa5]{2,5})|([a-zA-Z]{1,10}[a-zA-Z. ]{1,20}[a-zA-Z]{1,10}))$";
??????????? return Regex.IsMatch(name, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????? }
??????? #endregion

??????? #region 是否有效的中文名
??????? /// <summary>
??????? /// 是否有效的中文名
??????? /// </summary>
??????? /// <param name="name"></param>
??????? /// <returns></returns>
??????? public static bool IsValidChineseName(string name)
??????? {
??????????? if (string.IsNullOrWhiteSpace(name))
??????????? {
??????????????? return false;
??????????? }
??????????? string pattern = "^[\u4e00-\u9fa5]{2,5}$";
??????????? return Regex.IsMatch(name, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????? }
??????? #endregion

??????? #region 是否為正確的QQ號
??????? /// <summary>
??????? /// 是否為正確的QQ號
??????? /// </summary>
??????? /// <param name="qq"></param>
??????? /// <returns></returns>
??????? public static bool IsQQ(string qq)
??????? {
??????????? if (string.IsNullOrWhiteSpace(qq))
??????????? {
??????????????? return false;
??????????? }
??????????? string pattern = "^[1-9][0-9]{4,}$";
??????????? return Regex.IsMatch(qq, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????? }
??????? #endregion

??????? #region 是否數字
??????? /// <summary>
??????? /// 是否數字
??????? /// </summary>
??????? /// <param name="sNumeric"></param>
??????? /// <returns></returns>
??????? public static bool IsNumeric(string sNumeric)
??????? {
??????????? return (new Regex("^[\\+\\-]?[0-9]*\\.?[0-9]+$")).IsMatch(sNumeric);
??????? }
??????? #endregion

??????? #region 是否整數
??????? /// <summary>
??????? /// 是否整數
??????? /// </summary>
??????? /// <param name="sNumeric"></param>
??????? /// <returns></returns>
??????? public static bool IsInt(string intString)
??????? {
??????????? return (new Regex("^[\\+\\-]?[0-9]+$")).IsMatch(intString);
??????? }
??????? #endregion

??????? #region 是否為正整數
??????? /// <summary>
??????? /// 是否為正整數
??????? /// </summary>
??????? /// <param name="sNumeric"></param>
??????? /// <returns></returns>
??????? public static bool IsPosInt(string intString)
??????? {
??????????? return (new Regex("^[0-9]*[1-9][0-9]*$")).IsMatch(intString);
??????? }
??????? #endregion

??????? #region 自定義截取字符串
??????? /// <summary>
??????? /// 自定義截取字符串
??????? /// </summary>
??????? /// <param name="str">待截取的字符串</param>
??????? /// <param name="len">長度</param>
??????? /// <param name="hasDots">是否帶"..."</param>
??????? /// <returns></returns>
??????? public static string SubString(string str, int len, bool hasDots)
??????? {
??????????? if (string.IsNullOrWhiteSpace(str)) return string.Empty;

??????????? string dots = string.Empty;

??????????? if (len >= str.Length)
??????????????? return str;

??????????? if (hasDots)
??????????????? dots = "...";

??????????? return str.Substring(0, len) + dots;
??????? }
??????? #endregion

??????? #region 取得客戶端IP地址
??????? //獲取客戶端IP
??????? public static string GetClientIP()
??????? {
??????????? string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
??????????? if (null == result || result == String.Empty)
??????????? {
??????????????? result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
??????????? }

??????????? if (null == result || result == String.Empty)
??????????? {
??????????????? result = HttpContext.Current.Request.UserHostAddress;
??????????? }

??????????? if (null == result || result == String.Empty)
??????????? {
??????????????? return "0.0.0.0";
??????????? }
??????????? if (result.Equals("::1"))
??????????? {
??????????????? return "127.0.0.1";
??????????? }
??????????? return result;
??????? }

??????? /// <summary>
??????? /// 將最后一位數字換為*
??????? /// </summary>
??????? /// <param name="ip">輸入的ip</param>
??????? /// <returns></returns>
??????? public static string FilterLastNum(string ip)
??????? {
??????????? string result = string.Empty;

??????????? string[] s = ip.Split('.');

??????????? for (int i = 0; i < s.Length - 1; i++)
??????????? {
??????????????? result += s[i] + ".";
??????????? }
??????????? result += "*";

??????????? return result;
??????? }
??????? #endregion

??????? #region 將ID字符串轉化為int數組

??????? /// <summary>
??????? /// 將ID字符串轉化為int數組,默認使用空格和逗號分割
??????? /// </summary>
??????? /// <param name="idString"></param>
??????? /// <param name="splitChars"> </param>
??????? /// <returns></returns>
??????? public static List<int> ConvertFromIdString(string idString,params char[] splitChars)
??????? {
??????????? if (!string.IsNullOrWhiteSpace(idString))
??????????? {
??????????????? List<string> strings;
??????????????? if(splitChars == null||splitChars.Length == 0)
??????????????? {
??????????????????? strings = idString.Split(new []{' ', ','}, StringSplitOptions.RemoveEmptyEntries).ToList();
??????????????? }
??????????????? else
??????????????? {
??????????????????? strings = idString.Split(splitChars, StringSplitOptions.RemoveEmptyEntries).ToList();
??????????????? }

??????????????? return strings.ConvertAll(DataTypeHelper.GetInt32);

??????????? }
??????????? return new List<int>();
??????? }
??????? #endregion

??????? #region 獲取合法的主鍵字符串
??????? /// <summary>
??????? /// 獲取合法的主鍵字符串，比如 1,3,6,7
??????? /// </summary>
??????? /// <param name="strKeys"></param>
??????? /// <returns></returns>
??????? public static String GetLegalKeyStr(String strKeys)
??????? {
??????????? if (String.IsNullOrWhiteSpace(strKeys))
??????????? {
??????????????? return String.Empty;
??????????? }
??????????? List<String> list = new List<String>();
??????????? foreach (String key in strKeys.Split(',', ' '))
??????????? {
??????????????? if (Regex.IsMatch(key, @"^[0-9]+$", RegexOptions.Compiled))
??????????????? {
??????????????????? list.Add(key);
??????????????? }
??????????? }
??????????? list.Sort();
??????????? return String.Join(",", list.Distinct().ToArray());
??????? }
??????? #endregion

??????? #region 獲取合法的字典字符串
??????? /// <summary>
??????? /// 獲取合法的字典字符串，比如 a,b,d,e
??????? /// </summary>
??????? /// <param name="strKeys"></param>
??????? /// <returns></returns>
??????? public static string GetLegalDictKey(string strKeys)
??????? {
??????????? if (string.IsNullOrWhiteSpace(strKeys))
??????????? {
??????????????? return string.Empty;
??????????? }
??????????? strKeys = strKeys.ToLower();
??????????? strKeys = Regex.Replace(strKeys, "[^,a-z0-9_]", string.Empty, RegexOptions.Compiled);
??????????? strKeys = Regex.Replace(strKeys, "[,]{2,}", ",", RegexOptions.Compiled);
??????????? strKeys = strKeys.Trim(',');
??????????? return strKeys;
??????? }
??????? #endregion

??????? #region 獲取合法的主鍵字符串
??????? /// <summary>
??????? /// 獲取前后有,的主鍵字符串，比如 ,1,3,6,7,
??????? /// </summary>
??????? /// <param name="strKeys"></param>
??????? /// <returns></returns>
??????? public static string GetWrapedKeyStr(string strKeys)
??????? {
??????????? return strKeys = string.Format(",{0},", GetLegalKeyStr(strKeys));
??????? }
??????? #endregion

??????? #region 獲取合法的字典字符串
??????? /// <summary>
??????? /// 獲取有'的字典字符串，比如 'a','b','c','d'
??????? /// </summary>
??????? /// <param name="strKeys"></param>
??????? /// <returns></returns>
??????? public static string GetWrapedDictKey(string strKeys)
??????? {
??????????? strKeys = GetLegalDictKey(strKeys);
??????????? if (string.IsNullOrEmpty(strKeys))
??????????? {
??????????????? return string.Empty;
??????????? }
??????????? strKeys = strKeys.Replace(",", "','");
??????????? return strKeys = string.Format("'{0}'", strKeys);
??????? }
??????? #endregion

??????? #region 轉換文件大小
??????? /// <summary>
??????? /// 轉換文件大小
??????? /// </summary>
??????? /// <param name="fileSize"></param>
??????? /// <returns></returns>
??????? public static String FormatFileSize(long fileSize)
??????? {
??????????? String fileSizeString = "";
??????????? if (fileSize < 1024)
??????????? {
??????????????? fileSizeString = fileSize + " B";
??????????? }
??????????? else if (fileSize < 1024 * 1024)
??????????? {
??????????????? fileSizeString = String.Format("{0:F2}", (double)fileSize / 1024) + " K";
??????????? }
??????????? else if (fileSize < 1024 * 1024 * 1024)
??????????? {
??????????????? fileSizeString = String.Format("{0:F2}", (double)fileSize / (1024 * 1024)) + " M";
??????????? }
??????????? else
??????????? {
??????????????? fileSizeString = String.Format("{0:F2}", (double)fileSize / (1024 * 1024 * 1024)) + " G";
??????????? }
??????????? return fileSizeString;
??????? }
??????? #endregion

??????? #region 通過正則匹配獲取值
??????? /// <summary>
??????? /// 通過正則匹配獲取值
??????? /// </summary>
??????? /// <param name="input"></param>
??????? /// <param name="pattern"></param>
??????? /// <returns></returns>
??????? public static GroupCollection GetPatternValue(string input, string pattern)
??????? {
??????????? if (string.IsNullOrWhiteSpace(input))
??????????? {
??????????????? return null;
??????????? }
??????????? Match match = Regex.Match(input, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????????? if (match.Success && match.Groups.Count > 0)
??????????? {
??????????????? return match.Groups;
??????????? }
??????????? return null;
??????? }

??????? /// <summary>
??????? /// 通過正則匹配獲取值
??????? /// </summary>
??????? /// <param name="input"></param>
??????? /// <param name="pattern"></param>
??????? /// <returns></returns>
??????? public static MatchCollection GetPatternValues(string input, string pattern)
??????? {
??????????? if (string.IsNullOrWhiteSpace(input))
??????????? {
??????????????? return null;
??????????? }
??????????? MatchCollection match = Regex.Matches(input, pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
??????????? return match;
??????? }
??????? #endregion

??????? #region 合并路徑
??????? /// <summary>
??????? /// 合并路徑
??????? /// </summary>
??????? /// <param name="separator"></param>
??????? /// <param name="path1"></param>
??????? /// <param name="path2"></param>
??????? /// <returns></returns>
??????? public static string CombinPath(char separator, string path1, string path2)
??????? {
??????????? if (string.IsNullOrWhiteSpace(path1) || string.IsNullOrWhiteSpace(path2))
??????????? {
??????????????? return path1 ?? path2;
??????????? }

??????????? bool b1 = path1[path1.Length - 1] == separator;
??????????? bool b2 = path2[0] == separator;

??????????? if (b1 && b2)
??????????? {
??????????????? return path1 + path2.TrimStart(separator);
??????????? }

??????????? if (b1 || b2)
??????????? {
??????????????? return path1 + path2;
??????????? }

??????????? return string.Concat(path1, separator, path2);
??????? }

??????? /// <summary>
??????? /// 合并路徑
??????? /// </summary>
??????? /// <param name="separator"></param>
??????? /// <param name="paths"></param>
??????? /// <returns></returns>
??????? public static string CombinPath(char separator, params string[] paths)
??????? {
??????????? if (paths == null || paths.Length == 0)
??????????? {
??????????????? return string.Empty;
??????????? }
??????????? else if (paths.Length == 1)
??????????? {
??????????????? return paths[0];
??????????? }
??????????? System.Text.StringBuilder sb = new System.Text.StringBuilder(paths[0]);

??????????? for (int i = 1; i < paths.Length; ++i)
??????????? {
??????????????? string path = paths[i];
??????????????? if (string.IsNullOrEmpty(path))
??????????????? {
??????????????????? continue;
??????????????? }

??????????????? bool b1 = sb[sb.Length - 1] == separator;
??????????????? bool b2 = path[0] == separator;

??????????????? if (b1 && b2)
??????????????? {
??????????????????? sb.Append(path.TrimStart(separator));
??????????????? }
??????????????? else if (b1 || b2)
??????????????? {
??????????????????? sb.Append(path);
??????????????? }
??????????????? else
??????????????? {
??????????????????? sb.Append(separator);
??????????????????? sb.Append(path);
??????????????? }
??????????? }

??????????? return sb.ToString();
??????? }
??????? #endregion

??????? #region 計算頁數
??????? /// <summary>
??????? /// 計算頁數
??????? /// </summary>
??????? /// <param name="totalRecordCount"></param>
??????? /// <param name="pageSize"></param>
??????? /// <returns></returns>
??????? public static int GetPageCount(int totalRecordCount, int pageSize)
??????? {
??????????? return Convert.ToInt32(Math.Ceiling((double)totalRecordCount / pageSize));
??????? }
??????? #endregion

??????? #region 版本比較
??????? /// <summary>
??????? /// 版本比較
??????? /// </summary>
??????? /// <param name="version1"></param>
??????? /// <param name="version2"></param>
??????? /// <returns></returns>
??????? public static int CompareVersion(string version1, string version2)
??????? {
??????????? version1 = Regex.Replace(version1, "[^0-9.]", "", RegexOptions.Compiled);
??????????? version2 = Regex.Replace(version2, "[^0-9.]", "", RegexOptions.Compiled);

??????????? if (string.IsNullOrEmpty(version1) || string.IsNullOrEmpty(version2))
??????????? {
??????????????? return string.Compare(version1, version2);
??????????? }

??????????? Version v1 = new Version(version1);
??????????? Version v2 = new Version(version2);

??????????? return v1.CompareTo(v2);
??????? }
??????? #endregion

??????? #region 將字符串形式的IP轉換位long
??????? ///<summary>
??????? /// 將字符串形式的IP轉換位long
??????? ///</summary>
??????? ///<param name="ipAddress"></param>
??????? ///<returns></returns>
??????? public static long IpToLong(string ipAddress)
??????? {
??????????? if (string.IsNullOrWhiteSpace(ipAddress)) return 0;

??????????? byte[] ip_bytes = new byte[8];
??????????? string[] strArr = ipAddress.Split(new char[] { '.' });
??????????? if (strArr.Length != 4) return 0;

??????????? for (int i = 0; i < 4; i++)
??????????? {
??????????????? byte b = 0;
??????????????? if (byte.TryParse(strArr[3 - i], out b))
??????????????? {
??????????????????? ip_bytes[i] = b;
??????????????? }
??????????????? else
??????????????? {
??????????????????? return 0;
??????????????? }
??????????? }
??????????? return BitConverter.ToInt64(ip_bytes, 0);
??????? }
??????? #endregion

??????? #region 混淆密碼(如將123456變為1****6)
??????? /// <summary>
??????? /// 混淆密碼(如將123456變為1****6)
??????? /// </summary>
??????? /// <param name="passwd"></param>
??????? /// <returns></returns>
??????? public static string MixPasswd(string passwd)
??????? {
??????????? if (string.IsNullOrEmpty(passwd)) return string.Empty;

??????????? char[] newPasswd = new char[passwd.Length];

??????????? int mixed = 0;
??????????? int i = 0;
??????????? Random rand = new Random();
??????????? foreach (char ch in passwd)
??????????? {
??????????????? if (rand.Next(100) > 55)
??????????????? {
??????????????????? ++mixed;
??????????????????? newPasswd[i++] = '*';
??????????????? }
??????????????? else
??????????????? {
??????????????????? newPasswd[i++] = ch;
??????????????? }
??????????? }

??????????? i = 0;
??????????? while (mixed < passwd.Length / 2) // 至少一半替換為*
??????????? {
??????????????? if (newPasswd[i] != '*')
??????????????? {
??????????????????? ++mixed;
??????????????????? newPasswd[i++] = '*';
??????????????? }
??????????? }

??????????? return new string(newPasswd);
??????? }
??????? #endregion

??????? #region 日期

??????? /// <summary>
??????? /// 判斷今天是第幾周
??????? /// </summary>
??????? /// <param name="date"></param>
??????? /// <returns></returns>
??????? public static int WeekNumber(DateTime date)
??????? {
??????????? string firstDateText = date.Year + "-1-1";
??????????? DateTime firstDay = Convert.ToDateTime(firstDateText);
??????????? int theday;
??????????? switch (firstDay.DayOfWeek)
??????????? {
??????????????? case DayOfWeek.Monday:
??????????????????? theday = -1;
??????????????????? break;
??????????????? case DayOfWeek.Tuesday:
??????????????????? theday = 0;
??????????????????? break;
??????????????? case DayOfWeek.Wednesday:
??????????????????? theday = 1;
??????????????????? break;
??????????????? case DayOfWeek.Thursday:
??????????????????? theday = 2;
??????????????????? break;
??????????????? case DayOfWeek.Friday:
??????????????????? theday = 3;
??????????????????? break;
??????????????? case DayOfWeek.Saturday:
??????????????????? theday = 4;
??????????????????? break;
??????????????? default:
??????????????????? theday = 5;
??????????????????? break;
??????????? }
??????????? int weekNum = (date.DayOfYear + theday) / 7 + 1;
??????????? return weekNum;
??????? }

??????? /// <summary>
??????? /// 年內某周的日期范圍
??????? /// </summary>
??????? /// <param name="yearNum"></param>
??????? /// <param name="weekNum"></param>
??????? /// <returns></returns>
??????? public static String WeekRange(int yearNum, int weekNum)
??????? {
??????????? DateTime firstOfYear = new DateTime(yearNum, 1, 1);
??????????? System.DayOfWeek dayofweek = firstOfYear.DayOfWeek;
??????????? DateTime stand = firstOfYear.AddDays(weekNum * 7);
??????????? DateTime start = default(DateTime);
??????????? DateTime end = default(DateTime);
??????????? switch (dayofweek)
??????????? {
??????????????? case DayOfWeek.Monday:
??????????????????? start = stand.AddDays(0);
??????????????????? end = stand.AddDays(6);
??????????????????? break;
??????????????? case DayOfWeek.Tuesday:
??????????????????? start = stand.AddDays(-1);
??????????????????? end = stand.AddDays(5);
??????????????????? break;
??????????????? case DayOfWeek.Wednesday:
??????????????????? start = stand.AddDays(-2);
??????????????????? end = stand.AddDays(4);
??????????????????? break;
??????????????? case DayOfWeek.Thursday:
??????????????????? start = stand.AddDays(-3);
??????????????????? end = stand.AddDays(3);
??????????????????? break;
??????????????? case DayOfWeek.Friday:
??????????????????? start = stand.AddDays(-4);
??????????????????? end = stand.AddDays(2);
??????????????????? break;
??????????????? case DayOfWeek.Saturday:
??????????????????? start = stand.AddDays(-5);
??????????????????? end = stand.AddDays(1);
??????????????????? break;
??????????????? default:
??????????????????? start = stand.AddDays(-6);
??????????????????? end = stand.AddDays(0);
??????????????????? break;
??????????? }
??????????? return start.ToString("yyyy/MM/dd") + " — " + end.ToString("yyyy/MM/dd");
??????? }

??????? #endregion

轉載于:https://www.cnblogs.com/qyqianyou/archive/2012/10/31/2747933.html

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