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
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/// <summary>/// Ip地址验证/// </summary>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])$"); if (ipReg.IsMatch(ip)) { result = true; } return result;} |
2、价格验证
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/// <summary>/// 价格验证/// </summary>/// <param name="priceStr"></param>/// <returns></returns>public bool CheckPrice(string priceStr){ bool result = false; Regex regex = new Regex(@"^\d+(\.\d{1,2})?$", RegexOptions.IgnoreCase); Match match = regex.Match(priceStr); if (match.Success) { result = true; } return result;} |
3、正整数验证
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/// <summary>/// 正整数验证/// </summary>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;} |
希望本文所述对大家C#程序设计有所帮助。
