手机号码、电子邮件、iP地址中的布尔判断
发布时间：2014-02-24 发布：cenbel_lin 分类：技术文档
/// <summary>
/// 是否手机号码
/// </summary>
/// <param name="input">要判断的手机号码</param>
/// <returns></returns>
public static bool IsMobile(string input)
{
if (!Regex.IsMatch(input, @"^[1][1-9]\d{9}$", RegexOptions.IgnoreCase))
return false;
if (input.Length == 11 && (input.StartsWith("13") || input.StartsWith("14") || input.StartsWith("15") || input.StartsWith("18")))
{
return true;
}
return false;
}
/// <summary>
/// 是否e-mail
/// </summary>
/// <param name="input">要判断的字符串</param>
/// <returns></returns>
public static bool IsEmail(string input)
{
if (!string.IsNullOrEmpty(input))
{
string EmailReg = @"^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$";
return Regex.IsMatch(input, EmailReg, RegexOptions.IgnoreCase);
}
return false;
}
/// <summary>
/// 是否中文汉字
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool isChinese(string input)
{
if (string.IsNullOrEmpty(input))
return false;
Regex rx = new Regex("^[\u4e00-\u9fa5]$");
for (int i = 0; i < input.Length; i++)
{
if (!rx.IsMatch(input[i].ToString()))
return false;
}
return true;
}
/// <summary>
/// 是否IP地址
/// </summary>
/// <param name="str1">待判断的IP地址</param>
/// <returns></returns>
public static bool IsIPAddress(string input)
{
if (string.IsNullOrEmpty(input) || input.Length < 7 || input.Length > 15)
return false;
Regex regex = new Regex(@"^([1-9]?\d|1\d\d|2[0-4]\d|25[0-5])\.([1-9]?\d|1\d\d|2[0-4]\d|25[0-5])\.([1-9]?\d|1\d\d|2[0-4]\d|25[0-5])\.([1-9]?\d|1\d\d|2[0-4]\d|25[0-5])$", RegexOptions.IgnoreCase);
return regex.IsMatch(input);
}
