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Getting a structural type with an anonymous class's methods from a macro
Suppose we want to write a macro that defines an anonymous class with some type members or methods, and then creates an instance of that class that's statically typed as a structural type with those methods, etc. This is possible with the macro system in 2.10.0, and the type member part is extremely...
ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
...显式地建立连接、销毁连接、选择协议（TCP/UDP）和处理错误等，而 ZMQ 屏蔽了这些细节，让你的网络编程更为简单。ZMQ 用于 node 与 node 间的通信，node 可以是主机或者是进程。
三、本文的目的
在集群对外提供服务的过程中，...
使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...= new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" //背景颜色}); App Inventor 2 中文网 MIT同步更新的中文本土化 在线App开发平台！ ...
What is the difference between a “line feed” and a “carriage return”?
... feed the line while the carriage is still moving.
– Maciej Stachowski
Apr 15 '15 at 10:31
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What is Objective C++? [closed]
...probable classes).
Yes, you can use this language in Xcode to develop for Mac OS X, iPhone/iPodTouch, iPad. It works very well.
You don't have to do anything weird in your project to use Objective-C++. Just name your Objective-C files with the extension .mm (instead of .m) and you are good to go.
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由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...据处理瓶颈一下就出来。于是你会看到很多http 500之类的错误。这说明后端服务器垮了。
四、前端页面静态化
静态化一些不常变的页面和数据，并gzip一下。还有一个变态的方法是把这些静态页面放在/dev/shm下，这个目录就是内...
Where does PHP's error log reside in XAMPP?
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For me (macOS), the error log path lives inside the vm (which took me an embarassingly long time to realise). I only know how to access via the xampp control panel terminal, with a path of: /opt/lampp/logs/php_error_log
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Undo git mv (rename)
...tory is empty,, only git reset --hard did the job.
– mac13k
Jun 20 at 18:09
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Generating UML from C++ code? [closed]
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BoUML (bouml.fr) is available for Linux, Windows and Mac.
– Rhubbarb
Jul 18 '12 at 12:04
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Where is the Keytool application?
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keytool is part of the standard java distribution.
In a windows 64-bit machine, you would normally find the jdk at
C:\Program Files\Java\jdk1.8.0_121\bin
It is used for managing keys and certificates you can sign things with, in your case, probably a jar file.
If you provide more details of ...