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How to parse JSON in Scala using standard Scala classes?
...his is a solution based on extractors which will do the class cast:
class CC[T] { def unapply(a:Any):Option[T] = Some(a.asInstanceOf[T]) }
object M extends CC[Map[String, Any]]
object L extends CC[List[Any]]
object S extends CC[String]
object D extends CC[Double]
object B extends CC[Boolean]
val ...
How to get the number of characters in a std::string?
...r string types in non-standard C++ libraries, such as MFC's CString, ATL's CComBSTR, ACE's ACE_CString, and so on, with methods such as .GetLength(), and so on. I can't remember the specifics of them all right off the top of my head.
The STLSoft libraries have abstracted this all out with what they...
使用NPAPI编写浏览器插件的源码实例(windows 7/linux) - C/C++ - 清泛网 - ...
...de.google.com/chrome/extensions/getstarted.html
插件的功能
提供网页的javascript可以调用本机上的程序的能力。
关于源码的说明
npapi/npapi.h
npapi/npfunctions.h
npapi/npruntime.h
npapi/nptypes.h
直接来自:http://code.google.com/p/npapi-headers/
plugin_...
ATL COM开发入门(一)(JS调用ActiveX/COM组件) - C/C++ - 清泛网 - 专注C/C++及内核技术
...etStr.AllocSysString();
return S_OK;
}
四、写一个简单的html网页进行测试:
<HTML>
<HEAD>
<TITLE>COM接口测试页</TITLE>
<script type="text/javascript">
function Test(){
var retStr = AtlDemoObj.ConcatStr(document.all.ipt1.value, document.all.ipt2.value);
alert(retS...
ATL COM开发入门(二)(ActiveX/COM组件回调JS) - C/C++ - 清泛网 - 专注C/C++及内核技术
...方法,但是写得很不够详细,详见《获得ActiveX控件所在网页的对象模型》,不过笔者没有调试成功,有兴趣的读者可以深入研究下。这里笔者提供另外一种更加简便的方式:前台传入浏览器窗口对象的IDispatch指针(js中this便是...
HTTPKeepAlive,开启还是关闭 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...一般是这样描述的:当我们访问一个包含了若干个图片的网页时,如果HTTPKeepAlive是关闭的,那么页面中每一个图片都会发起一次连接请求;但是如果HTTPKeepAlive是开启的,那么因为可以复用HTTP连接,所以可以节省很多不必要的开...
Discuz与phpsso整合时无法同步登录:通过js load 另一个 script 文件导致的...
...eb 开发中,出于跨域同步、远程调用等目的,经常需要在网页中通过 script 加载另一段远程 script。最常用最简单的方法就是直接用 document write 输出加载脚本的 HTML 在 web 开发中,出于跨域同步、远程调用等目的,经常需要在网...
App Inventor 2 列表显示框能否实现多选功能? - App Inventor 2 中文网 - ...
...的界面都能应用到App中,也就是说这里实际上就是写HTML网页界面和AppInventor进行交互实现,需要有网页开发的基础。
这种多选功能有现成的实现,不过是收费的,12美刀。
https://puravidaapps.com/combobox.php
Scala: Abstract types vs generics
...o by hand. Besides the loss in conciseness, there is also the problem of accidental name
conflicts between abstract type names that emulate type parameters.
Second, generics and abstract types usually serve distinct roles in Scala programs.
Generics are typically used when one needs just type ...
Payment Processors - What do I need to know if I want to accept credit cards on my website? [closed]
...cost, but I'm looking for the answer to what do I need to do if I want to accept credit card payments?
9 Answers
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