地址栏汉字编码处理函数

public string getUrl(string url)
{
MatchCollection mats = Regex.Matches(url, "(?<first>[\\w]*)=(?<two>[\u4e00-\u9fa5]*)", RegexOptions.IgnoreCase | RegexOptions.Multiline);
foreach (Match mat in mats)
{
//Response.Write(mat.Groups["first"].Value + "----");
//Response.Write(mat.Groups["two"].Value + "------2");
url = url.Replace(mat.Groups["first"].Value + "=" + mat.Groups["two"].Value, mat.Groups["first"].Value + "=" + HttpUtility.UrlEncodeUnicode(mat.Groups["two"].Value.Trim()));
// Response.Write(url.Replace(mat.Groups["first"].Value + "=" + mat.Groups["two"].Value, mat.Groups["first"].Value + "=" + HttpUtility.UrlEncode(mat.Groups["two"].Value.Trim())));
//Response.Write(HttpUtility.UrlDecode(HttpUtility.UrlEncode(mat.Groups["two"].Value.Trim())));
}
return url;
}