学步园

using System;<br /> using System.Text.RegularExpressions; </p> <p>namespace CommonTools<br /> {<br /> /**//// <summary><br /> /// RegexLib 的摘要说明。<br /> /// </summary><br /> public class RegexLib<br /> { </p> <p> //验证Email地址<br /> public static bool IsValidEmail(string strIn)<br /> {<br /> // Return true if strIn is in valid e-mail format.<br /> return Regex.IsMatch(strIn, @"^([/w-/.]+)@((/[[0-9]{1,3}/.[0-9]{1,3}/.[0-9]{1,3}/.)|(([/w-]+/.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(/]?)$");<br /> }<br /> //dd-mm-yy 的日期形式代替 mm/dd/yy 的日期形式。<br /> public static string MDYToDMY(String input)<br /> {<br /> return Regex.Replace(input,"//b(?//d{1,2})/(?//d{1,2})/(?//d{2,4})//b","${day}-${month}-${year}");<br /> }<br /> //验证是否为小数<br /> public static bool IsValidDecimal(string strIn)<br /> {<br /> return Regex.IsMatch(strIn,@"[0]./d{1,2}|[1]");<br /> }<br /> //验证是否为电话号码<br /> public static bool IsValidTel(string strIn)<br /> {<br /> return Regex.IsMatch(strIn,@"(/d+-)?(/d{4}-?/d{7}|/d{3}-?/d{8}|^/d{7,8})(-/d+)?");<br /> }<br /> //验证年月日<br /> public static bool IsValidDate(string strIn)<br /> {<br /> return Regex.IsMatch(strIn,@"^2/d{3}-(?:0?[1-9]|1[0-2])-(?:0?[1-9]|[1-2]/d|3[0-1])(?:0?[1-9]|1/d|2[0-3]):(?:0?[1-9]|[1-5]/d):(?:0?[1-9]|[1-5]/d)$");<br /> }<br /> //验证后缀名<br /> public static bool IsValidPostfix(string strIn)<br /> {<br /> return Regex.IsMatch(strIn,@"/.(?i:gif|jpg)$");<br /> }<br /> //验证字符是否再4至12之间<br /> public static bool IsValidByte(string strIn)<br /> {<br /> return Regex.IsMatch(strIn,@"^[a-z]{4,12}$");<br /> }<br /> //验证IP<br /> public static bool IsValidIp(string strIn)<br /> {<br /> return Regex.IsMatch(strIn,@"^(/d{1,2}|1/d/d|2[0-4]/d|25[0-5])/.(/d{1,2}|1/d/d|2[0-4]/d|25[0-5])/.(/d{1,2}|1/d/d|2[0-4]/d|25[0-5])/.(/d{1,2}|1/d/d|2[0-4]/d|25[0-5])$");<br /> } </p> <p> }<br /> }