URL中去除指定参数实现C#代码

#region url中去除指定参数
/// <summary>
/// 中去除指定参数
/// </summary>
/// <param name="url">地址</param>
/// <param name="param">参数</param>
/// <returns></returns>
public static string buildurl(string url, string param)
{
string url1 = url;
if (url.indexof(param) > 0)
{
if (url.indexof("&", url.indexof(param) + param.length) > 0)
{
url1 = url.substring(0, url.indexof(param) - 1) + url.substring(url.indexof("&", url.indexof(param) + param.length) + 1);
}
else
{
url1 = url.substring(0, url.indexof(param) - 1);
}
return url1;
}
else
{
return url1;
}
}
#endregion
#region "获取页面url"
/// <summary>
/// 获取当前访问页面地址参数
/// </summary>
public static string getscriptnamequerystring
{
get
{
return httpcontext.current.request.servervariables["query_string"].tostring();
}
}
/// <summary>
/// 获取当前访问页面地址
/// </summary>
public static string getscriptname
{
get
{
return httpcontext.current.request.servervariables["script_name"].tostring();
}
}
/// <summary>
/// 获取当前访问页面url
/// </summary>
public static string getscripturl
{
get
{
return getscriptnamequerystring == "" ? getscriptname : string.format("{0}?{1}", getscriptname, getscriptnamequerystring);
}
}
/// <summary>
/// 获取当前访问页面 参数
/// </summary>
public static string getscriptnamequery
{
get
{
return httpcontext.current.request.url.query;
}
}
#endregion

要去除多个参数，这么使用就可以了。buildurl(buildurl(buildurl(url,param1),param2),param3)