您不得不重建URL，然后重定向。事情是这样的：

You'd have to reconstruct the url and then redirect. Something like this:

string url = Request.RawUrl;

NameValueCollection params = Request.QueryString;
for (int i=0; i<params.Count; i++)
{
    if (params[i].GetKey(i).ToLower() == "foo")
    {
        url += string.Concat((i==0 ? "?" : "&"), params[i].GetKey(i), "=", params.Get(i));
    }
}
Response.Redirect(url);

反正我没有测试或任何东西，但它应该工作（或者至少让你在THYE正确的方向）

Anyway, I didn't test that or anything, but it should work (or at least get you in thye right direction)