常用正規表達式 c#

/// <summary>
        /// 是否手機号
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool isPhone(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"^[1]+[3,5,8]+d{9}");
        }

        /// <summary>
        /// 是否為xxxx-xx-xx的時間格式
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool isDateTime(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"d{4}-(1[0-2]|[0]?d)-(3[01]|[0-2]?d)");
        }
        /// <summary>
        /// 是否為4個漢字以内（含4個）的名字
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool isName(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"^[u4E00-u9FA5]{0,4}$");
        }

        /// <summary>
        /// 驗證身份号證
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsIDcard(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"(^d{18}$)|(^d{15}$)");
        }

        /// <summary>
        /// 驗證是否為郵政編碼
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>

        public static bool IsPostalcode(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"^d{6}$");
        }
        /// <summary>
        /// 驗證是否為郵箱
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool isEmail(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*");
        }
        /// <summary>
        /// 驗證是否是純數字和字母組合
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsNumAndWord(string str){

            return System.Text.RegularExpressions.Regex.IsMatch(str, @"^(-?d+)(.d+)$");

        }
        /// <summary>
        /// 驗證是否是純字母
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsWord(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"^[a-zA-Z]+$");
        }
       /// <summary>
       /// 驗證六位數以上數字，符号，字母任意兩種混合的密碼驗證政策
       /// </summary>
       /// <param name="str"></param>
       /// <returns></returns>
        public static bool ishunhe(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"^[a ^(?![0-9]+$)(?![a-zA-Z]+$)(?!([^(0-9a-zA-Z)]|[()])+$)([^(0-9a-zA-Z)]|[()]|[a-zA-Z]|[0-9]){6,}$");
        }
        /// <summary>
        /// 判斷是否為雙精度
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool isDouble(string str)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(str, @"^[-+]?d+(.d+)$");
        }
      

　　　　　　

/// <summary>

/// 金額大小寫轉換

/// </summary>

/// <param name="number"></param>

/// <returns></returns>

public static String ConvertToChinese(Decimal number)

{

var s = number.ToString("#L#E#D#C#K#E#D#C#J#E#D#C#I#E#D#C#H#E#D#C#G#E#D#C#F#E#D#C#.0B0A");

var d = Regex.Replace(s, @"((?<=-|^)[^1-9]*)|((?'z'0)[0A-E]*((?=[1-9])|(?'-z'(?=[F-L.]|$))))|((?'b'[F-L])(?'z'0)[0A-L]*((?=[1-9])|(?'-z'(?=[.]|$))))", "${b}${z}");

var r = Regex.Replace(d, ".", m => "負元空零壹貳叁肆伍陸柒捌玖空空空空空空空分角拾佰仟萬億兆京垓秭穰"[m.Value[0] - '-'].ToString());

return r;

}

所有的正則都是在網上找的，這裡做了一個總結，有所錯誤請指正。