什么是PVC
pvc,就是聚氯乙烯，塑料制品。这种低廉的材质使得这类玩具的价格最能令消费者接受，也是产量最 大的一类。现在的PVC大多指PVC材质制造的涂装完成品，以人形居多。这类玩具质地不及手办，但无需玩家动手加工上色，买回去就可以直接当装饰品放着。下图就是一款PVC
取自"http://zhtxx.vxv.cn/wiki/index.php/PVC"
What is wiki ?
The describe of wiki below quotes from Wikipedia.
A wiki (IPA: [wi.kiː] or [wiː.kiː] [1]) is a type of website that allows the visitors themselves to easily add, remove and otherwise edit and change some available content, sometimes without the need for registration. This ease of interaction and operation makes a wiki an effective tool for collaborative authoring. The term wiki can also refer to the collaborative software itself (wiki engine) that facilitates the operation of such a website, or to certain specific wiki sites, including the computer science site (an original wiki), WikiWikiWeb, and the online encyclopedias such as Wikipedia.
The first such software to be called a wiki, WikiWikiWeb, was named by Ward Cunningham. Cunningham remembered a Honolulu International Airport counter employee telling him to take the so-called "Wiki Wiki" Chance RT-52 shuttle bus line that runs between the airport's terminals. According to Cunningham, "I chose wiki-wiki as an alliterative substitute for 'quick' and thereby avoided naming this stuff quick-web." "Wiki Wiki" is a reduplication of "wiki", a Hawaiian-language word for fast. The word wiki is a shorter form of wiki wiki (weekie, weekie). The word is sometimes interpreted as the backronym for "what I know is", which describes the knowledge contribution, storage and exchange function.
According to Cunningham, the idea of 'wiki' can be traced back to a HyperCard stack he wrote in the late 1980s. In the late 1990s, wikis were increasingly recognized as a promising way to develop private and public knowledge bases[citation needed], and this potential inspired the founders of the Nupedia encyclopedia project, which later became Wikipedia. In the early 2000s, wikis were increasingly adopted in the enterprise as collaborative software. Common uses included project communication, intranets and documentation, initially for technical users. In December 2002, Socialtext launched the first commercial open source wiki solution. Open source wiki software was widely available, downloaded and installed throughout these years. Today some companies use wikis as their only collaborative software and as a replacement for static intranets. There is arguably greater use of wikis behind firewalls than on the public Internet.
什么是Wiki
以下对于Wiki的描述取自于维基百科
Wiki，源自夏威夷语的「wee kee wee kee」，本是「快点快点」之意。在这里wiki指的是一种可在网路上开放多人协同创作的超文本系统，是由「Wiki之父」沃德·坎宁安（Ward Cunningham）于1995年所创。
基本上，wiki包含一套能简易创造、改变HTML网页的系统，再加上一套纪录以及编目所有改变的系统，以提供还原改变的功能。使用wiki系统的网站称為wiki网站，wiki网站容许任何造访网站的人能快速轻易的加入、删除、编辑所有的内容，而且通常连登入都不必，因此特别适合团队合作的写作方式。wiki系统也可以包括各种辅助工具，让使用者能轻易追踪wiki的持续变化，或是让众使用者之间讨论解决关於wiki内容的固有争议。wiki的内容也可能有误，因為使用者必定会加上不正确的资料。
有人认為，Wiki系统属于一种人类知识的网路系统，我们可以在Web的基础上对Wiki文本进行浏览、创建、更改，而且这种创建、更改、及发佈的代价远比HTML文本小；与此同时Wiki系统还支持那些面向社群的协作式写作，为协作式写作提供了必要的帮助；最后，Wiki的写作者自然构成了一个社群，Wiki系统為这个社群提供了简单的交流工具。与其它超文本系统相比，Wiki有使用简便且开放的特点，所以Wiki系统可以帮助我们在一个社群内共享某个领域的知识。
而「共笔」这个翻译则反映了多人可以共同创作的特性。
