常用的验证

手机号码验证，多个手机用，号分割

<script type="text/javascript">
  // var regTel = ^(1[3|4|5|8]\d{9}$/;  //单个手机
  var regTel = /^(1[3|4|5|8]\d{9}\,)*(1[3|4|5|8]\d{9})$/;
    if ($("#txtPhone").val() == "") {
        alert("请填写手机！");
        return;
    }
    if (!$("#txtPhone").val().match(regTel)) {
        alert("请输入正确的手机!");
        return;
    }
</script>

前台页面js中要获取url参数时候

var Request = new QueryString();
function QueryString() {
    var name,value,i;
    var str = location.href;
    var num = str.indexOf("?")
    str = str.substr(num + 1);
    var arrtmp = str.split("&");
    for (i = 0; i < arrtmp.length; i++) {
        num = arrtmp[i].indexOf("=");
        if (num > 0) {
            name = arrtmp[i].substring(0,num);
            value = arrtmp[i].substr(num + 1);
            this[name] = value;

        }
    }
}

引用完后可以在脚本中直接用Request["参数"]

实时显示时间

 <script type="text/javascript">
        $(function () {
            clock();
        });

        //e实时显示时间
        function clock() {
            var d = new Date()
            var year = d.getFullYear();
            var month = d.getMonth() + 1;
            var day = d.getDate();
            var hours = d.getHours();
            var minutes = d.getMinutes();
            var Seconds = d.getSeconds();
            var num = (year + "-" + month + "-" + day + " " + hours + ":" + minutes + ":" + Seconds).split(' ');
            var num1 = num[0].split('-');
            var num2 = num[1].split(':');
            var d = new Date(num1[0],num1[1],num1[2],num2[0],num2[1],num2[2]);
            var t = d.getTime();
            t += 1000;
            var date = new Date(t);
            var year = date.getFullYear();
            var month = date.getMonth();
            var day = date.getDate();
            var hour = date.getHours();
            var minute = date.getMinutes();
            var second = date.getSeconds();
            var months = new Array("","1","2","3","4","5","6","7","8","9","10","11","12");
            var monthname = months[month];
            if (hour > 24) {
                hour = hour - 12;
            }
            if (monthname < 10)
                monthname = "0" + monthname;
            if (day < 10)
                day = "0" + day;
            if (minute < 10) {
                minute = "0" + minute;
            }
            if (second < 10) {
                second = "0" + second;
            }
            $("#txtTime").val(year + "-" + monthname + "-" + day + " " + hour + ":" + minute + ":" + second);
            setTimeout("clock()",1000);
        }

    </script>

C# 常用验证

    //验证用户名
    public static bool IsName(string input)
    {
        Regex regex = new Regex("^[a-zA-Z][a-zA-Z0-9]{3,19}$");
        return regex.IsMatch(input);

    }
    //验证密码
    public static bool IsWord(string input)
    {
        Regex regex = new Regex("^(?=.*?[0-9])(?=.*?[a-zA-Z])[0-9a-zA-Z]+$");
        return regex.IsMatch(input);
    }
    //验证密码位数
    public static bool IsWord2(string input)
    {
        Regex regex = new Regex("^[a-zA-Z0-9][a-zA-Z0-9]{7,19}$");
        return regex.IsMatch(input);

    }
    //验证电话号码
    public static bool IsPhone(string input)
    {

        Regex regex = new Regex("^0\\d{2,3}-\\d{7,8}$");
        return regex.IsMatch(input);

    }

    //验证手机
    public static bool IsMobilePhone(string input)
    {
        Regex regex = new Regex("^(13|15)\\d{9}$");
        return regex.IsMatch(input);

    }
    //验证email
    public static bool IsEmail(string input)
    {
        Regex regex = new Regex("\\w+([-+.']\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*");
        return regex.IsMatch(input);

    }
    //验证qq
    public static bool Isqq(string input)
    {
        Regex regex = new Regex("^[1-9][0-9]{4,8}$");
        return regex.IsMatch(input);

    }

    //验证网址
    public static bool Iswww(string input)
    {
        Regex regex = new Regex("http(s)?://([\\w-]+\\.)+[\\w-]+(/[\\w- ./?%&=]*)?");
        return regex.IsMatch(input);

    }
    //验证日期
    public static bool IsDate(string input)
    {
        Regex regex = new Regex("^((((1[6-9]|[2-9]\\d)\\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\\d|3[01]))|(((1[6-9]|[2-9]\\d)\\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\\d|30))|(((1[6-9]|[2-9]\\d)\\d{2})-0?2-(0?[1-9]|1\\d|2[0-8]))|(((1[6-9]|[2-9]\\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$");
        return regex.IsMatch(input);

    }
    //验证hanzi
    public static bool IsHanzi(string input)
    {
        Regex regex = new Regex("^[\u4e00-\u9fa5]+$");
        return regex.IsMatch(input);

    }
    //验证商品数量
    public static bool Isshuliang(string input)
    {
        Regex regex = new Regex("^[1-9][0-9]{0,4}$");
        return regex.IsMatch(input);

    }
    //验证价钱
    public static bool IsMoney(string input)
    {
        Regex regex = new Regex("^\\d+(\\.\\d\\d)?$");
        return regex.IsMatch(input);

    }


    //验证URL
    public static bool IsUrl(string input)
    {
        Regex regex = new Regex("^(http|https|ftp)\\://[a-zA-Z0-9\\-\\.]+\\.[a-zA-Z]{2,3}(:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\\-\\._\\?\\,\'/\\\\+&%\\$#\\=~])*$"
);
        return regex.IsMatch(input);

    }

  /// 
  /// 判断输入的字符串只包含数字
  /// 可以匹配整数和浮点数
  /// ^-?\d+$|^(-?\d+)(\.\d+)?$
  public static bool IsNumber(string input)
  {
   string pattern = "^-?\\d+$|^(-?\\d+)(\\.\\d+)?$";
   Regex regex = new Regex(pattern);
   return regex.IsMatch(input);
  }

  /// <summary>
  /// 检查是否是数字
  /// true表示是数字，false表示否
  /// </summary>
  /// <param name="str"></param>
  /// <returns></returns>

  public static bool RteNum(string str)
  {
      if (str == "" || str == null)
      {
          return false;
      }
      else
      {
          System.Text.RegularExpressions.Regex reg1 = new System.Text.RegularExpressions.Regex(@"^[-]?\d+[.]?\d*$");

          return reg1.IsMatch(str);
      }

  }

常见的正则帮助类

	/// <summary>
        /// 清除包含'字符串
        /// </summary>
        public const string CLEAN_STRING = @"[']";

        /// <summary>
        /// 验证字符串是否为字符begin-end之间
        /// </summary>
        public const string IS_VALID_BYTE = @"^[A-Za-z0-9]{#0#,#1#}$";

        /// <summary>
        /// 验证字符串是否为年月日
        /// </summary>
        public const string IS_VALID_DATE =
            @"^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)$";

        /// <summary>
        /// 验证字符串是否为小数
        /// </summary>
        public const string IS_VALID_DECIMAL = @"[0].\d{1,2}|[1]";

        /// <summary>
        /// 验证字符串是否为EMAIL
        /// </summary>
        public const string IS_VALID_EMAIL =
            @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$";

        /// <summary>
        /// 验证字符串是否为IP
        /// </summary>
        public const string IS_VALID_IP =
            @"^(\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])$";

        /// <summary>
        /// 验证字符串是否为后缀名
        /// </summary>
        public const string IS_VALID_POSTFIX = @"\.(?i:{0})$";

        /// <summary>
        /// 验证字符串是否为电话号码
        /// </summary>
        public const string IS_VALID_TEL = @"(\d+-)?(\d{4}-?\d{7}|\d{3}-?\d{8}|^\d{7,8})(-\d+)?";

        /// <summary>
        /// 验证字符串是否为URL
        /// </summary>
        public const string IS_VALID_URL = @"^[a-zA-z]+://(\\w+(-\\w+)*)(\\.(\\w+(-\\w+)*))*(\\?\\S*)?$";