文本非法字符过滤 简体转换繁体

   /// <summary>
    /// 文本非法字符过滤
    /// </summary>
    public static class TextFilter
    {
        public static string Fileter(this string s)
        {
            if (s == null)
                return s;

            string os = s.Replace("'", "‘").Replace("\r\n", "").Replace("<", "&lt;").Replace(">", "&gt;").
                Replace("@", "＠").Replace("+", "＋").Replace("=", "＝").Replace("%", "％").Replace("*", "＊").Replace("\"","“").Replace("\"",@"”").
                Replace("$", "￥").Replace("#", "＃").Trim();

            return os;
        }
        /// <summary>
        /// 简体转换繁体        
        /// </summary>
        /// <param name="text"></param>
        /// <returns></returns>
        public static string ConvTraditional(this string text)
        {
            string t = text;
            if (string.IsNullOrEmpty(t))
            {
                return "";
            }
            else
            {
                t = Strings.StrConv(t, VbStrConv.TraditionalChinese, 0);
            }
            return t;
        }
    }