这篇文章主要介绍了c#常用正则验证函数,举例分析了c#针对ip验证、价格验证及正整数验证的相关操作技巧,需要的朋友可以参考下
本文实例讲述了C#常用正则验证函数。分享给大家供大家参考，具体如下：
1、Ip地址验证
////// Ip地址验证 /// public static bool CheckIp(string ip) { bool result = false; Regex ipReg = new Regex(@"^(\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])$"); if (ipReg.IsMatch(ip)) { result = true; } return result; }
2、价格验证
////// 价格验证 /// /// ///public bool CheckPrice(string priceStr) { bool result = false; Regex regex = new Regex(@"^\d+(\.\d{1,2})?$", RegexOptions.IgnoreCase); Match match = regex.Match(priceStr); if (match.Success) { result = true; } return result; }
3、正整数验证
////// 正整数验证 /// public static bool CheckPositiveInteger(string numStr) { bool result = false; Regex regex = new Regex(@"^[1-9]\d*$", RegexOptions.IgnoreCase); Match match = regex.Match(numStr); if (match.Success) { result = true; } return result; }
