是的，我建议使用 HttpUtility.ParseQueryString()

Yes I would suggest converting the querystring to a collection by using HttpUtility.ParseQueryString()

然后，您可以直接在集合中查找/添加/更新/替换值，然后从该集合重新创建查询字符串.

You can then find/add/update/replace values directly in the collection, before re-creating the querystring from this collection.

这应该可以更容易地发现重复项.

This should make it easier to spot duplicates.