This is a Wikipediauser page. This is not an encyclopedia article or the talk page for an encyclopedia article. If you find this page on any site other than Wikipedia, you are viewing a mirror site. Be aware that the page may be outdated and that the user whom this page is about may have no personal affiliation with any site other than Wikipedia. The original page is located at https://en.wikipedia.org/wiki/User:William915.
I'm a Chinese graduate student in the University of Hong Kong.
My major is physical chemistry.
I'm interested in science and I find computer programming very interesting.
So far I've made contributions to the Wikipedia in the following languages: en, zh, zh-yue
Topic lists link to articles on a particular subject. There are two types of topic lists on Wikipedia: outlines, and alphabetical article indexes. Outlines differ from categories found in Wikipedia's category system in that categories are usually limited to one level each in a tree, while an outline can be an entire tree, with many branches and many levels. This gives the benefit of having all the topics on a given subject in one place - this allows you to scroll down and read the whole tree, and every topic in that tree's subject. Indexes are single-level topic lists, with topics ordered alphabetically.
Topic lists allow for centralized management of all the links on a subject, as opposed to the decentralized approach of the category system.
