在Wordpress中只使用正则表达式匹配一个URL段

I want to rewrite these URLs in Wordpress:

http://localhost/one/.../
http://localhost/one/...

Using the following code:

add_rewrite_tag('%my_test%','([^/]*)');

add_rewrite_rule(
    '^one/([^/]*)/?',
    'index.php?page_id=0&my_test=$matches[1]',
    'top'
);

It works, but it also allows URLs like:

http://localhost/one/.../...
http://localhost/one/.../.../...

How can I rewrite only /one/.../ and /one/... URLs and return 404 for /one/.../.../ etc?

The '^one/([^/]*)/?', is matching /one/.../ and /one/... and /one/(nothing). Hovewer anything beyond that is ignored because the regex is not terminated. You need to add $ to the end. And you probably want to replace the * with a + if you don't want to match /one/(nothing) . So, '^one/([^/]+)/?$', should work.