private static string BM(string hz)
{
string tmp = "";
foreach (char c in hz)
{
if (c != ':' && c != '.' && c != '/' && c != '\\' && c != '?' && c != '=' && c != '&' && c != '@' && c != '!' && c != '#' && c != '$' && c != '%' && c != '^' && c != '(' && c != ')' && c != '"' && c != '<' && c != '>' && c != ',' && c != ' ' && c != '[' && c != ']' && c != '{' && c != '}' && c != '_' && c != '-' && c != '+' && c != ';' && c != '`' && c != '~' && c != '|')
{
tmp += System.Web.HttpUtility.UrlEncode(c.ToString(), System.Text.Encoding.GetEncoding("GB2312"));
}
else
{
tmp += c.ToString();
}
}
return tmp;
}