E语中地 - virus - 51CTO技术博客-领先的IT技术博客

virus 的BLOG

博客统计信息

51cto推荐博客
用户名：virus
文章数：459
评论数：209
访问量：325089
无忧币：6451
博客积分：5624
博客等级：8
注册日期：2006-09-29

背景音乐

我的音乐	00:00 \| 00:00

51CTO推荐博客

suodihai	chris_lee
wangxihe	saturn
李兴华	jayenho
cownew	dufei
zhangyxc	david_lv
piluge	mk6yeung

友情链接

   病毒源代码数据库
   totallygeek
   上善若水润物无声

文章

文章列表>>

CET "两遍阅读法"

2007-06-20 21:28:35

CET "两遍阅读法"
"两遍阅读法"，即第一遍着重训练阅读能力，第二遍着重扩大词汇量并培养语感。
第一遍阅读重在训练速度
集中精力阅读一篇长度适中的文章，记下起止时间，并计算单位时间的阅读量。迫使自己进行快..

类别：E语中地 | 阅读全文(75) | 回复(0)

Google Maps With Photos

2007-03-11 13:16:18

Google Maps added images to info boxes. This only works for some locations, not all. For example, you can search for googleplex, mountain view and then click the red marker labeled “g”, the..

类别：E语中地 | 阅读全文(52) | 回复(0)

Tips for Using Images in Blogs

2007-03-11 13:14:57

Here are some tips on using photos, screenshot or illustrative images in your blog:

Use Flickr’s Creative Commons search to find photos. You can then include these photos in your blog, ..

类别：E语中地 | 阅读全文(41) | 回复(0)

Google Video

2007-03-11 12:49:14

Google Video has a new category on the homepage: “blog buzz,” showing the blogosphere’s most discussed videos. (Likely, this covers Google Video and YouTube content only, albeit YouTube domina..

类别：E语中地 | 阅读全文(57) | 回复(0)

Tough Google Support Jobs?

2007-03-11 12:30:50

Spotted this at Aaron Swartz’s blog, from someone who claims to be working at Google:
Does NOBODY out there realize that LESS THAN HALF of the 10,000+ employees are engineers and programmers???..

类别：E语中地 | 阅读全文(46) | 回复(0)

上下文无关文法英文版

2007-02-21 08:07:28

上下文无关文法
A context free grammar(grammar for short) consists of terminals ,nonterminals,a start symbol,and productions.
Terminals are the basic symbols from which strings are for..

类别：E语中地 | 阅读全文(122) | 回复(0)

句型

2007-02-21 07:54:43

文法G[S]

句型的短语
S =>* αAδ且 A =>+ β，则称β是句型αβδ相对于非终结符A的短语
句型的直接短语
若有A Þ β，则称β是句型αβδ相对于非终结符A 的直接短语 ..

类别：E语中地 | 阅读全文(46) | 回复(0)

A hierarchy of grammars

2007-02-21 07:09:04

Type 0: free or unrestricted grammars
These are the most general. Productions are of the form u –> v where both u and v are arbitrary strings of symbols in V, with u non-null. Ther..

类别：E语中地 | 阅读全文(41) | 回复(0)

What are Derivations

2007-02-21 06:59:09

Derivation is a way that a grammar defines a language .In the process of derivation a production is treated as a rewriting rule in which the nonterminal on the left side is replaced by th..

类别：E语中地 | 阅读全文(47) | 回复(0)

Define a grammar

2007-02-21 06:55:57

A grammar G is defined as a 4-tuple (VN，VT，P，S )
VN is a set of nonterminals
VT is a set of terminals
P is a set of productions，each production consi..

类别：E语中地 | 阅读全文(38) | 回复(0)

未凿之玉

   另blog
   心得警示录
   我将归来开放

热门文章

最新评论

[匿名]51cto游客：[url=http://www.510868.com]中彩网..

[匿名]radom/無極聖：最后，非常感谢博主的这篇文章，实..

[匿名]radom：不好意思，我搞错了，安羽说的是对..

51CTO推荐博文