Reference
In the C ++ programming language 3rd (Bjarne stroustrup, 1997:Page 1:Objects of some user-defined types contain type information.SuchObjects can be used conveniently and safely in contexts in which theirType cannot be deter-mined at
Reprinted from: http://www.cnblogs.com/davygeek/p/5670212.htmlLearn to write a script today encountered some variables do not know, here do the next record.
Variable
Meaning
$
File name of the current script
Variable Description:$$ the shell itself PID (ProcessID)$! PID of the Shell's last running background process$? End code of the last Run command (return value)$-flag at a glance using the SET command$* all parameter lists. All arguments are
This articleArticleAfter I read the original article, I think it is a misunderstanding. When I watch it, there is something in it, but it is of little value and cannot be taken seriously! The key to understanding this article is to confirm the
"Statement" The content of this post is copy, the source is the stack overflow.It has several meanings in Scala and all related to its mathematical meaning as implication.
In a value, it introduces a function literal, or lambda. e.g. the bit
Recently saw someone asked the meaning of these three parameters, in fact, help has been very detailed introduction of these three parameters, it seems to be good to learn English, or even explain can not understand. /*** Get A View that displays
Android self-learning course-callback function meaning (source code + example), android callback function
Why do we learn the callback function? Let's start with the thread. Although I have written an article called "Android self-learning
Why learn the callback function, and then start with the thread. Although previously wrote an article called "Android Self-learning process-multi-threading", now look still too young.In the learning thread, I tried to look at the source of handler,
Http://blog.sina.com.cn/s/blog_621f1e120100rj21.htmlThis is a very important part of JavaScript development, but many people feel that this is an elusive thing. To really understand the functional mechanisms of JavaScript, it is necessary to figure
Recently found in the project JS file at the end of this code, for the front-end technology is weak, I am still a little dizzy, good to see the relevant information, now explained as follows:(function ($) {$.plugin = new Org.plugin.Plugin
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