C#用于对用户输入数据进行校验的类

using System;
using System.Text;
using System.Web;
using System.Web.UI.WebControls;
using System.Text.RegularExpressions;
namespace DotNet.Utilities
{
    public class PageValidate
    {
        private static Regex RegNumber = new Regex("^[0-9]+$");
        private static Regex RegNumberSign = new Regex("^[+-]?[0-9]+$");
        private static Regex RegDecimal = new Regex("^[0-9]+[.]?[0-9]+$");
        private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$"); //等价于^[+-]?\d+[.]?\d+$
        private static Regex RegEmail = new Regex("^[\w-]+@[\w-]+\.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或数字的字符串，和 [a-zA-Z0-9] 语法一样
        private static Regex RegCHZN = new Regex("[\u4e00-\u9fa5]");

    public PageValidate()
    {
    }


    #region 数字字符串检查
    /// <summary>
    /// 格式化字符串
    /// </summary>
    /// <param name="inputData">源字符串</param>
    /// <param name="formatlevel">0:不做验证| 1:sql语句参数| 2:存储过程参数| 3:EncodeHtml| 4:Encode+sql| 5:Encode+存储过程</param>
    /// <returns>返回格式化后的字符串</returns>
    public static string FormatString(string inputData, int formatlevel)
    {
        return inputData;
    }
    /// <summary>
    /// 检查Request查询字符串的键值，是否是数字，最大长度限制
    /// </summary>
    /// <param name="req">Request</param>
    /// <param name="inputKey">Request的键值</param>
    /// <param name="maxLen">最大长度</param>
    /// <returns>返回Request查询字符串</returns>
    public static string FetchInputDigit(HttpRequest req, string inputKey, int maxLen)
    {
        string retVal = string.Empty;
        if (inputKey != null && inputKey != string.Empty)
        {
            retVal = req.QueryString[inputKey];
            if (null == retVal)
                retVal = req.Form[inputKey];
            if (null != retVal)
            {
                retVal = SqlText(retVal, maxLen);
                if (!IsNumber(retVal))
                    retVal = string.Empty;
            }
        }
        if (retVal == null)
            retVal = string.Empty;
        return retVal;
    }

    public enum CheckType
    { None, Int, SignInt, Float, SignFloat, Chinese, Mail }
    /// <summary>
    /// 检测字符串类型
    /// </summary>
    /// <param name="inputData">输入字符串</param>
    /// <param name="checktype">0:不检测| 1:数字| 2:符号数字| 3: 浮点数| 4:符号浮点| 5: 中文?| 6:邮件?</param>
    /// <returns></returns>
    public static bool checkString(string inputData, int checktype)
    {

        bool _return = false;
        switch (checktype)
        {
            case 0:
                _return = true;
                break;
            case 1:
                _return = IsNumber(inputData);
                break;
            case 2:
                _return = IsNumberSign(inputData);
                break;
            case 3:
                _return = IsDecimal(inputData);
                break;
            case 4:
                _return = IsDecimalSign(inputData);
                break;
            case 5:
                _return = IsHasCHZN(inputData);
                break;
            case 6:
                _return = IsEmail(inputData);
                break;
            default:
                _return = false;
                break;
        }
        return _return;
    }
    /// <summary>
    /// 是否数字字符串
    /// </summary>
    /// <param name="inputData">输入字符串</param>
    /// <returns></returns>
    public static bool IsNumber(string inputData)
    {
        Match m = RegNumber.Match(inputData);
        return m.Success;
    }
    /// <summary>
    /// 是否数字字符串 可带正负号
    /// </summary>
    /// <param name="inputData">输入字符串</param>
    /// <returns></returns>
    public static bool IsNumberSign(string inputData)
    {
        Match m = RegNumberSign.Match(inputData);
        return m.Success;
    }
    /// <summary>
    /// 是否是浮点数
    /// </summary>
    /// <param name="inputData">输入字符串</param>
    /// <returns></returns>
    public static bool IsDecimal(string inputData)
    {
        Match m = RegDecimal.Match(inputData);
        return m.Success;
    }
    /// <summary>
    /// 是否是浮点数 可带正负号
    /// </summary>
    /// <param name="inputData">输入字符串</param>
    /// <returns></returns>
    public static bool IsDecimalSign(string inputData)
    {
        Match m = RegDecimalSign.Match(inputData);
        return m.Success;
    }

    #endregion

    #region 中文检测

    /// <summary>
    /// 检测是否有中文字符
    /// </summary>
    /// <param name="inputData"></param>
    /// <returns></returns>
    public static bool IsHasCHZN(string inputData)
    {
        Match m = RegCHZN.Match(inputData);
        return m.Success;
    }

    #endregion

    public static string GetShortDate(string dt)
    {
        return Convert.ToDateTime(dt).ToShortDateString();
    }

    #region 邮件地址
    /// <summary>
    /// 是否是浮点数 可带正负号
    /// </summary>
    /// <param name="inputData">输入字符串</param>
    /// <returns></returns>
    public static bool IsEmail(string inputData)
    {
        Match m = RegEmail.Match(inputData);
        return m.Success;
    }

    #endregion

    #region 其他

    /// <summary>
    /// 检查字符串最大长度，返回指定长度的串
    /// </summary>
    /// <param name="sqlInput">输入字符串</param>
    /// <param name="maxLength">最大长度</param>
    /// <returns></returns>        
    public static string SqlText(string sqlInput, int maxLength)
    {
        if (sqlInput != null && sqlInput != string.Empty)
        {
            sqlInput = sqlInput.Trim();
            if (sqlInput.Length > maxLength)//按最大长度截取字符串
                sqlInput = sqlInput.Substring(0, maxLength);
        }
        return sqlInput;
    }


    /// <summary>
    /// 字符串编码
    /// </summary>
    /// <param name="inputData"></param>
    /// <returns></returns>
    public static string HtmlEncode(string inputData)
    {
        return HttpUtility.HtmlEncode(inputData);
    }
    /// <summary>
    /// 设置Label显示Encode的字符串
    /// </summary>
    /// <param name="lbl"></param>
    /// <param name="txtInput"></param>
    public static void SetLabel(Label lbl, string txtInput)
    {
        lbl.Text = HtmlEncode(txtInput);
    }
    public static void SetLabel(Label lbl, object inputObj)
    {
        SetLabel(lbl, inputObj.ToString());
    }

    #endregion

    #region 对于用户权限从数据库中读出的解密过程
    public static string switch_riddle(string s_ch)//解密
    {
        string s_out, s_temp, temp;
        int i_len = s_ch.Length;
        if (i_len == 0 || s_ch == "")
        {
            s_out = "0";
        }
        temp = "";
        s_temp = "";
        s_out = "";
        for (int i = 0; i <= i_len - 1; i++)
        {
            temp = s_ch.Substring(i, 1);
            switch (temp)
            {
                case "a": s_temp = "1010";
                    break;
                case "b": s_temp = "1011";
                    break;
                case "c": s_temp = "1100";
                    break;
                case "d": s_temp = "1101";
                    break;
                case "e": s_temp = "1110";
                    break;
                case "f": s_temp = "1111";
                    break;
                case "0": s_temp = "0000";
                    break;
                case "1": s_temp = "0001";
                    break;
                case "2": s_temp = "0010";
                    break;
                case "3": s_temp = "0011";
                    break;
                case "4": s_temp = "0100";
                    break;
                case "5": s_temp = "0101";
                    break;
                case "6": s_temp = "0110";
                    break;
                case "7": s_temp = "0111";
                    break;
                case "8": s_temp = "1000";
                    break;
                case "9": s_temp = "1001";
                    break;
                default: s_temp = "0000";
                    break;
            }
            s_out = s_out + s_temp;
            s_temp = "";
        }
        return s_out;
    }
    #endregion

    #region 用户权限的加密过程
    public static string switch_encrypt(string s_ch)
    {
        string s_out, s_temp, temp;
        int i_len = 64;
        if (i_len == 0 || s_ch == "")
        {
            s_out = "0000";
        }
        temp = "";
        s_temp = "";
        s_out = "";
        for (int i = 0; i <= i_len - 1; i = i + 4)
        {
            temp = s_ch.Substring(i, 4);
            switch (temp)
            {
                case "1010": s_temp = "a";
                    break;
                case "1011": s_temp = "b";
                    break;
                case "1100": s_temp = "c";
                    break;
                case "1101": s_temp = "d";
                    break;
                case "1110": s_temp = "e";
                    break;
                case "1111": s_temp = "f";
                    break;
                case "0000": s_temp = "0";
                    break;
                case "0001": s_temp = "1";
                    break;
                case "0010": s_temp = "2";
                    break;
                case "0011": s_temp = "3";
                    break;
                case "0100": s_temp = "4";
                    break;
                case "0101": s_temp = "5";
                    break;
                case "0110": s_temp = "6";
                    break;
                case "0111": s_temp = "7";
                    break;
                case "1000": s_temp = "8";
                    break;
                case "1001": s_temp = "9";
                    break;
                default: s_temp = "0";
                    break;
            }
            s_out = s_out + s_temp;
            s_temp = "";
        }
        return s_out;
    }//加密
    #endregion

    #region   访问权限
    public static bool CheckTrue(string s_admin, int a)
    {
        string s_temp = "";
        s_temp = s_admin.Substring(a - 1, 1);   //s_admin为全局变量
        if (s_temp == "" || s_temp == "1")
        {
            return true;
        }
        else
        {
            return false;
        }

    }
    #endregion

    #region   检测字符串长度
    /// <summary>  
    /// 计算文本长度，区分中英文字符，中文算两个长度，英文算一个长度
    /// </summary>
    /// <param name="Text">需计算长度的字符串</param>
    /// <returns>int</returns>
    public static int Text_Length(string Text)
    {
        int len = 0;

        for (int i = 0; i < Text.Length; i++)
        {
            byte[] byte_len = Encoding.Default.GetBytes(Text.Substring(i, 1));
            if (byte_len.Length > 1)
                len += 2;  //如果长度大于1，是中文，占两个字节，+2
            else
                len += 1;  //如果长度等于1，是英文，占一个字节，+1
        }

        return len;
    }
    #endregion

    #region   字符串长度区分中英文截取
    /// <summary>  
    /// 截取文本，区分中英文字符，中文算两个长度，英文算一个长度
    /// </summary>
    /// <param name="str">待截取的字符串</param>
    /// <param name="length">需计算长度的字符串</param>
    /// <returns>string</returns>
    public static string GetSubString(string str, int length)
    {
        string temp = str;
        int j = 0;
        int k = 0;
        for (int i = 0; i < temp.Length; i++)
        {
            if (Regex.IsMatch(temp.Substring(i, 1), @"[\u4e00-\u9fa5]+"))
            {
                j += 2;
            }
            else
            {
                j += 1;
            }
            if (j <= length)
            {
                k += 1;
            }
            if (j > length)
            {
                return temp.Substring(0, k) + "..";
            }
        }
        return temp;
    }
    #endregion

    #region 页面HTML格式化
    public static string GetHtml(string sDetail)
    {
        Regex r;
        Match m;
        #region 处理空格
        sDetail = sDetail.Replace(" ", "&nbsp;");
        #endregion
        #region 处理单引号
        sDetail = sDetail.Replace("'", "’");
        #endregion
        #region 处理双引号
        sDetail = sDetail.Replace("\"", "&quot;");
        #endregion
        #region html标记符
        sDetail = sDetail.Replace("<", "&lt;");
        sDetail = sDetail.Replace(">", "&gt;");

        #endregion
        #region 处理换行
        //处理换行，在每个新行的前面添加两个全角空格
        r = new Regex(@"(\r\n((&nbsp;)|　)+)(?<正文>\S+)", RegexOptions.IgnoreCase);
        for (m = r.Match(sDetail); m.Success; m = m.NextMatch())
        {
            sDetail = sDetail.Replace(m.Groups[0].ToString(), "<BR>　　" + m.Groups["正文"].ToString());
        }
        //处理换行，在每个新行的前面添加两个全角空格
        sDetail = sDetail.Replace("\r\n", "<BR>");
        #endregion

        return sDetail;
    }
    #endregion

    #region 分页
    //public static string paging(string url, string para, int sumpage, int page)
    //{
    //    string result = string.Empty;
    //    if (sumpage == 1)
    //    {
    //        return result;
    //    }
    //    if (page > sumpage)
    //    {
    //        page = 1;
    //    }
    //    if (sumpage > 0)
    //    {
    //        for (int i = 1; i <= sumpage; i++)
    //        {
    //            if (i == page)
    //            {
    //                result += string.Format("<a class=\"a_page\" href=\"{0}?page={1}{2}\">{3}</a> ", new object[] { url, i.ToString(), para, i.ToString() });
    //            }
    //            else
    //            {
    //                result += string.Format("<a href=\"{0}?page={1}{2}\">{3}</a> ", new object[] { url, i.ToString(), para, i.ToString() });
    //            }
    //        }
    //    }
    //    return result;
    //}

    public static string paging(string url, string para, int sumpage, int page)
    {
        string result = string.Empty;
        if (sumpage == 1)
        {
            return result;
        }
        if (sumpage > 500)
        {
            sumpage = 500;
        }
        if (page > sumpage)
        {
            page = 1;
        }
        StringBuilder sb = new StringBuilder();
        if (sumpage > 0)
        {
            switch (page)
            {
                case 1:
                    sb.Append(string.Format("<p class=\"next\"><a href=\"{0}?page={1}{2}\">{3}</a> ", new object[] { url, page + 1, para, "下一页" }));
                    break;
                default:
                    if (sumpage == page)
                    {
                        sb.Append(string.Format("<p class=\"next\"><a href=\"{0}?page={1}{2}\">{3}</a> ", new object[] { url, page - 1, para, "上一页" }));
                    }
                    else
                    {
                        sb.Append(string.Format("<p class=\"next\"><a href=\"{0}?page={1}{2}\">{3}</a> <a href=\"{4}?page={5}{6}\">{7}</a> ",
                            new object[] { url, page + 1, para, "下一页", url, page - 1, para, "上一页" }));
                    }
                    break;
            }
            sb.Append(string.Format("第{0}/{1}页</p>", new object[] { page, sumpage }));
        }
        return sb.ToString();
    }

    public static string paging(string url, string para, int sumpage, int page, System.Web.UI.UserControl myPaging)
    {
        myPaging.Visible = false;
        string result = string.Empty;
        if (sumpage == 1)
        {
            return result;
        }
        if (sumpage > 500)
        {
            sumpage = 500;
        }
        if (page > sumpage)
        {
            page = 1;
        }
        StringBuilder sb = new StringBuilder();
        if (sumpage > 0)
        {
            myPaging.Visible = true;
            switch (page)
            {
                case 1:
                    sb.Append(string.Format("<a href=\"{0}?page={1}{2}\">{3}</a> ", new object[] { url, page + 1, para, "下一页" }));
                    break;
                default:
                    if (sumpage == page)
                    {
                        sb.Append(string.Format("<a href=\"{0}?page={1}{2}\">{3}</a> ", new object[] { url, page - 1, para, "上一页" }));
                    }
                    else
                    {
                        sb.Append(string.Format("<a href=\"{0}?page={1}{2}\">{3}</a> <a href=\"{4}?page={5}{6}\">{7}</a> ",
                            new object[] { url, page + 1, para, "下一页", url, page - 1, para, "上一页" }));
                    }
                    break;
            }
            sb.Append(string.Format("第{0}/{1}页", new object[] { page, sumpage }));
        }
        return sb.ToString();
    }

    public static string paging(string para, int sumpage, int page, int count)
    {
        string result = string.Empty;
        if (page > sumpage)
        {
            page = 1;
        }
        StringBuilder sb = new StringBuilder();
        if (sumpage > 0)
        {
            if (sumpage != 1)
            {
                switch (page)
                {
                    case 1:
                        sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a> ", new object[] { page + 1, para, "下一页" }));
                        break;
                    default:
                        if (sumpage == page)
                        {
                            sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a> ", new object[] { page - 1, para, "上一页" }));
                        }
                        else
                        {
                            sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a> <a href=\"?page={3}{4}\">{5}</a> ",
                                new object[] { page - 1, para, "上一页", page + 1, para, "下一页" }));
                        }
                        break;
                }
            }
            sb.Append(string.Format("第{0}/{1}页 共{2}条", new object[] { page, sumpage, count }));
        }
        return sb.ToString();
    }

    public static void paging(string clinktail, int sumpage, int page, System.Web.UI.WebControls.Label page_view)
    {
        if (sumpage > 0)
        {
            int n = sumpage;    //总页数
            int x = page;   //得到当前页
            int i;
            int endpage;
            string pageview = "", pageviewtop = "";
            if (x > 1)
            {
                pageview += "&nbsp;&nbsp;<a class='pl' href='?page=1" + clinktail + "'>第1页</a> | ";
                pageviewtop += "&nbsp;&nbsp;<a class='pl' href='?page=1" + clinktail + "'>第1页</a> | ";
            }
            else
            {
                pageview += "&nbsp;&nbsp;<font color='#666666'> 第1页 </font> | ";
                pageviewtop += "&nbsp;&nbsp;<font color='#666666'> 第1页 </font> | ";
            }

            if (x > 1)
            {
                pageviewtop += " <a class='pl' href='?page=" + (x - 1) + "" + clinktail + "'>上1页</a> ";
            }
            else
            {
                pageviewtop += " <font color='#666666'>上1页</font> ";
            }

            if (x > ((x - 1) / 10) * 10 && x > 10)
            {
                pageview += "<a class='pl' href='?page=" + ((x - 1) / 10) * 10 + "" + clinktail + "' onclink='return false;'>上10页</a>";
            }

            //if (((x-1) / 10) * 10 + 10) >= n )
            if (((x - 1) / 10) * 10 + 10 >= n)
            {
                endpage = n;
            }
            else
            {
                endpage = ((x - 1) / 10) * 10 + 10;
            }

            for (i = ((x - 1) / 10) * 10 + 1; i <= endpage; ++i)
            {
                if (i == x)
                {
                    pageview += " <font color='#FF0000'><b>" + i + "</b></font>";
                }
                else
                {
                    pageview += " <a class='pl' href='?page=" + i + "" + clinktail + "'>" + i + "</a>";
                }
            }

            if (x < n)
            {
                pageviewtop += " <a class='pl' href='?page=" + (x + 1) + "" + clinktail + "'>下1页</a> ";
            }
            else
            {
                pageviewtop += " <font color='#666666'>下1页</font> ";
            }

            if (endpage != n)
            {
                pageview += " <a class='pl' href='?page=" + (endpage + 1) + "" + clinktail + "' class='pl' onclink='return false;'>下10页</a> | ";
            }
            else
            {
                pageview += " | ";
            }
            if (x < n)
            {
                pageview += " <a class='pl' href='?page=" + n + "" + clinktail + "' class='pl'>第" + n + "页</a> ";
                pageviewtop += " |  <a class='pl' href='?page=" + n + "" + clinktail + "' class='pl'>第" + n + "页</a> ";
            }
            else
            {
                pageview += "<font color='#666666'> 第" + n + "页 </font>";
                pageviewtop += " | <font color='#666666'> 第" + n + "页 </font>";
            }
            page_view.Text = pageview.ToString();
        }
        else
        {
            page_view.Text = "";
        }
    }

    //带第一页和最后一页
    public static string paging2(string para, int sumpage, int page, int count)
    {
        string result = string.Empty;
        if (page > sumpage)
        {
            page = 1;
        }
        StringBuilder sb = new StringBuilder();
        if (sumpage > 0)
        {
            if (sumpage != 1)
            {
                //第一页
                sb.Append(string.Format("<a href=\"?page={0}{1}\"><img src=\"images/first-icon.gif\" border=\"0\"/></a>&nbsp;&nbsp;", new object[] { 1, para }));
                switch (page)
                {
                    case 1:
                        //前一页图片
                        sb.Append(string.Format("<a>{0}</a>", new object[] { "<img src=\"images/left-icon.gif\" border=\"0\"/>" }));
                        sb.Append(string.Format("<a>上一页</a><a href=\"?page={0}{1}\">{2}</a> ", new object[] { page + 1, para, "下一页" }));
                        //后一页图片
                        sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a>", new object[] { page + 1, para, "<img src=\"images/right-icon.gif\" border=\"0\"/>" }));
                        break;
                    default:
                        if (sumpage == page)
                        {
                            //前一页图片
                            sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a>", new object[] { page - 1, para, "<img src=\"images/left-icon.gif\" border=\"0\"/>" }));
                            sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a><a>下一页</a> ", new object[] { page - 1, para, "上一页" }));
                            //后一页图片
                            sb.Append(string.Format("<a>{0}</a>", new object[] { "<img src=\"images/right-icon.gif\" />" }));
                        }
                        else
                        {
                            //前一页图片
                            sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a>", new object[] { page - 1, para, "<img src=\"images/left-icon.gif\" border=\"0\"/>" }));
                            sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a> <a href=\"?page={3}{4}\">{5}</a> ",
                                new object[] { page - 1, para, "上一页", page + 1, para, "下一页" }));
                            //后一页图片
                            sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a>", new object[] { page + 1, para, "<img src=\"images/right-icon.gif\" border=\"0\"/>" }));
                        }
                        break;
                }
                //最后一页图片
                sb.Append(string.Format("&nbsp;&nbsp;<a href=\"?page={0}{1}\"><img src=\"images/last-icon.gif\" border=\"0\"/></a>&nbsp;&nbsp;", new object[] { sumpage, para }));
            }
            sb.Append(string.Format("第{0}页/共{1}页 共{2}条", new object[] { page, sumpage, count }));
        }
        return sb.ToString();
    }

    public static string paging3(string url, string para, int sumpage, int page, int count)
    {
        string result = string.Empty;
        if (page > sumpage)
        {
            page = 1;
        }
        StringBuilder sb = new StringBuilder();
        if (sumpage > 0)
        {
            if (sumpage != 1)
            {
                //第一页
                sb.Append(string.Format("<a href=\"{2}?page={0}{1}\">首页</a>", new object[] { 1, para, url }));
                switch (page)
                {
                    case 1:
                        //前一页图片
                        // sb.Append(string.Format("<a>{0}</a>", new object[] { "<img src=\"images/left-icon.gif\" border=\"0\"/>" }));
                        sb.Append(string.Format("<a>上一页</a><a href=\"{3}?page={0}{1}\">{2}</a> ", new object[] { page + 1, para, "下一页", url }));
                        //后一页图片
                        // sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a>", new object[] { page + 1, para, "<img src=\"images/right-icon.gif\" border=\"0\"/>" }));
                        break;
                    default:
                        if (sumpage == page)
                        {
                            //前一页图片
                            //sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a>", new object[] { page - 1, para, "<img src=\"images/left-icon.gif\" border=\"0\"/>" }));
                            sb.Append(string.Format("<a href=\"{3}?page={0}{1}\">{2}</a><a>下一页</a> ", new object[] { page - 1, para, "上一页", url }));
                            //后一页图片
                            //sb.Append(string.Format("<a>{0}</a>", new object[] { "<img src=\"images/right-icon.gif\" />" }));
                        }
                        else
                        {
                            //前一页图片
                            //sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a>", new object[] { page - 1, para, "<img src=\"images/left-icon.gif\" border=\"0\"/>" }));
                            sb.Append(string.Format("<a href=\"{6}?page={0}{1}\">{2}</a> <a href=\"{6}?page={3}{4}\">{5}</a> ",
                                new object[] { page - 1, para, "上一页", page + 1, para, "下一页", url }));
                            //后一页图片
                            //sb.Append(string.Format("<a href=\"?page={0}{1}\">{2}</a>", new object[] { page + 1, para, "<img src=\"images/right-icon.gif\" border=\"0\"/>" }));
                        }
                        break;
                }
                //最后一页图片
                sb.Append(string.Format("<a href=\"{2}?page={0}{1}\">末页</a>&nbsp;&nbsp;", new object[] { sumpage, para, url }));
            }
            sb.Append(string.Format("第{0}页/共{1}页 共{2}条", new object[] { page, sumpage, count }));
        }
        return sb.ToString();
    }
    #endregion

    #region 日期格式判断
    /// <summary>
    /// 日期格式字符串判断
    /// </summary>
    /// <param name="str"></param>
    /// <returns></returns>
    public static bool IsDateTime(string str)
    {
        try
        {
            if (!string.IsNullOrEmpty(str))
            {
                DateTime.Parse(str);
                return true;
            }
            else
            {
                return false;
            }
        }
        catch
        {
            return false;
        }
    }
    #endregion

    #region 是否由特定字符组成
    public static bool isContainSameChar(string strInput)
    {
        string charInput = string.Empty;
        if (!string.IsNullOrEmpty(strInput))
        {
            charInput = strInput.Substring(0, 1);
        }
        return isContainSameChar(strInput, charInput, strInput.Length);
    }

    public static bool isContainSameChar(string strInput, string charInput, int lenInput)
    {
        if (string.IsNullOrEmpty(charInput))
        {
            return false;
        }
        else
        {
            Regex RegNumber = new Regex(string.Format("^([{0}])+$", charInput));
            //Regex RegNumber = new Regex(string.Format("^([{0}]{{1}})+$", charInput,lenInput));
            Match m = RegNumber.Match(strInput);
            return m.Success;
        }
    }
    #endregion

    #region 检查输入的参数是不是某些定义好的特殊字符：这个方法目前用于密码输入的安全检查
    /// <summary>
    /// 检查输入的参数是不是某些定义好的特殊字符：这个方法目前用于密码输入的安全检查
    /// </summary>
    public static bool isContainSpecChar(string strInput)
    {
        string[] list = new string[] { "123456", "654321" };
        bool result = new bool();
        for (int i = 0; i < list.Length; i++)
        {
            if (strInput == list[i])
            {
                result = true;
                break;
            }
        }
        return result;
    }
    #endregion
}

}</pre>