COMP/StringUtil.cs
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using System;
using System.Drawing;
using System.Data;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text.RegularExpressions;
using System.IO;
using System.Drawing.Imaging;
using System.Text;
using System.Web.Security;
namespace COCOWO.COMP
{
/// <summary>
/// 对一些字符串进行操作的类
/// 创建时间:2006-8-3
/// 创建者:马先光
/// </summary>
public class StringUtil
{
private static string passWord; //加密字符串
/// <summary>
/// 判断输入是否数字
/// </summary>
/// <param name="num">要判断的字符串</param>
/// <returns></returns>
static public bool VldInt(string num)
{
#region
try
{
Convert.ToInt32(num);
return true;
}
catch { return false; }
#endregion
}
/// <summary>
/// 修改特殊字符
/// </summary>
/// <param name="str">要替换的字符串</param>
/// <returns></returns>
static public string CheckStr(string str)
{
#region
return str.Replace("<br />\r\n", "\r\n").Replace("&", "&").Replace("'", "'").Replace(@"""", """).Replace(" ", " ").Replace("<", "<").Replace(">", ">").Replace(" ", " ").Replace(" where ", " where ").
Replace(" select ", " select ").Replace(" insert ", " insert ").Replace(" create ", " create ").Replace(" drop ", " drop ").
Replace(" alter ", " alter ").Replace(" delete ", " delete ").Replace(" update ", " update ").Replace(" or ", " or ").Replace("\"", @""").
Replace("\r\n", "<br />\r\n");
#endregion
}
/// <summary>
/// 恢复特殊字符
/// </summary>
/// <param name="str">要替换的字符串</param>
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