正则验证手机号（联通，电信，移动手机号），不包含座机号，作为会员登陆（正则验证） winform

public static class RegxCheck
    {
        /// <summary>
        /// 正则表达式验证是否为手机号
        /// </summary>
        /// <param name="telNum">需要验证的手机号</param>
        /// <returns></returns>
        public static bool CheckTelNum(string telNum)
        {
            //电信手机号码正则        
            string telecom = @"^1[3578][01379]\d{8}$";
            Regex telecomReg = new Regex(telecom);
            //联通手机号正则        
            string unicom = @"^1[34578][01256]\d{8}$";
            Regex unicomReg = new Regex(unicom);
            //移动手机号正则        
            string cmcc = @"^(134[012345678]\d{7}|1[34578][012356789]\d{8})$";
            Regex cmccReg = new Regex(cmcc);
            return telecomReg.IsMatch(telNum) || unicomReg.IsMatch(telNum) || cmccReg.IsMatch(telNum);
            
        }
    }