高频题（0）
1. Implement a Page Redirection Function
Design a function that handles page redirection. Given the current page URL, such as 'https://a/b/c/d/e.html', and a link for the next page, such as 'abc://c/d/e.html', determine if the link is a full path or a relative path. If it is a full path, return it directly. If it is a relative path, like 'd/e/g', return the full path by appending it to the current URL, resulting in 'https://a/b/c/d/d/e/g'. Discuss the various branches and edge cases that need to be considered, and how you would handle them in your implementation.
